Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Kazunori Matsuo Last modified date:2022.04.22

Lecturer / Department of Environmental Changes / Faculty of Social and Cultural Studies

1. Fujie S, Shimizu S, Tone K, Matsuo K, Maeto K, Stars in subtropical Japan: a new gregarious Meteorus species (Hymenoptera, Braconidae, Euphorinae) constructs enigmatic star-shaped pendulous communal cocoons, Journal of Hymenoptera Research, 2021.10.
2. Matsuo K, Ide T, Yara K, Matsunaga K, Gyoutoku N, Higashiura Y, Yukawa J, Abe Y, Moriya S, Discovery of a native host of Torymus beneficus (Hymenoptera: Torymidae), with description of a new Dryocosmus (Hymenoptera: Cynipidae), Applied Entomology and Zoology, 56, 4, 451-463, 2021.09.
3. Takagi E, Matsuo K, Suzuki M, Adachi Y, Togashi K, Natural occurrence of oviposition and adult emergence of the seed parasitoid wasp Macrodasyceras hirsutum Kamijo (Hymenoptera: Torymidae) on Ilex latifolia Thunberg in Japan, Taiwania, 65, 541-543, 2020.11.
4. Kobayashi C, Matsuo K, Kawata M, Contradictory effects of leaf rolls in a leaf‑mining weevil, Scientific Reports, 10, 12180, 2020.07.
5. Matsuo K, Hirose Y, Johnson NF, Description of a new species of Trissolcus Ashmead (Hymenoptera: Scelionidae) parasitic on eggs of Megymenum gracilicorne Dallas (Hemiptera: Dinidoridae), Japanese Journal of Systematic Entomology, 26, 1, 19-22, 2020.06.
6. Matsuo K, A revision of Japanese Torymus Dalman (Hymenoptera: Torymidae), Zootaxa, 4758, 3, 401-441, 2020.03.
7. Kazunori Matsuo, Detection of Spalangia (Hymenoptera: Pteromalidae) attacking Stomoxys calcitrans (Diptera: Muscidae) and their potential significance in the Japanese cattle industry, Applied Entomology and Zoology, 55, 83-91, 2020.02.
8. Kazunori Matsuo, Junichi Yukawa, Two new species of Torymus Dalman, 1820 (Hymenoptera
Torymidae) parasitizing Celticecis japonica Yukawa and Tsuda, 1987 (Diptera: Cecidomyiidae) that induce leaf galls on Celtis species (Ulmaceae) in Japan: Original article, Entomological Science, 10.1111/j.1479-8298.2009.00330.x, 12, 3, 261-269, 2009.09, Torymus celticolus Matsuo sp. nov. and Torymus celtidigalla Matsuo sp. nov. (Hymenoptera: Torymidae) are described as parasitoids of larvae of Celticecis japonica Yukawa & Tsuda, 1987 (Diptera: Cecidomyiidae) that induce leaf galls on Celtis species (Ulmaceae) in Japan. A key to species of the genus Torymus known in Japan is provided..
9. Junichi Yukawa, Keizi Kiritani, Tetsuo Kawasawa, Yoshimitsu Higashiura, Nobuo Sawamura, Ken Nakada, Naohisa Gyotoku, Akira Tanaka, Satoshi Kamitani, Kazunori Matsuo, Seiei Yamauchi, Yoko Takematsu, Northward range expansion by Nezara viridula (Hemiptera
Pentatomidae) in Shikoku and Chugoku Districts, Japan, possibly due to global warming, Applied Entomology and Zoology, 10.1303/aez.2009.429, 44, 3, 429-437, 2009.12, Field surveys and light trap catches of Nezara viridula and N. antennata (Hemiptera: Pentatomidae) in Shikoku and Chugoku Districts, Japan showed that N. viridula is now distributed along the northern coastline of Shikoku District, and in Yamaguchi Prefecture, and along the northern coastline of Shimane Prefecture, south of Izumo, Chugoku District. The present data together with previous reports suggest that the northward range expansion of N. viridula is possibly due to global warming because the monthly mean temperature for January in newly invaded areas has exceeded 5°C in recent years, for example, since 1986 in Fukuoka, below which the winter mortality of N. viridula adults becomes higher. Around the northern limit of N. viridula in Shimane Prefecture, it was not found in April-August 2008 because the monthly mean temperature for January 2008 fell below 5°C, below which the winter mortality of N. viridula becomes higher. Thus, the northern limit retreated depending on winter temperature. We confirmed the absence of N. viridula from 1979 until August 2008 in Izumo, Shimane Prefecture, and in 2007-2008 in Tottori Prefecture. Most areas along the southern seacoast in Shikoku District were occupied only by N. viridula, suggesting that it has replaced N. antennata by interspecific mating. In the Chugoku District, no area was occupied only by N. viridula, but it was more abundant than N. antennata in southern Yamaguchi Prefecture, indicating that N. viridula is now replacing N. antennata in that area..
10. Kazunori Matsuo, A redescription of Torymus sapporoensis Ashmead and description of a new species of Torymus Dalman (Hymenoptera
Torymidae) parasitizing Paratephritis fukaii (Diptera: Tephritidae) in Japan, Zootaxa, 2410, 53-58, 2010.03, Torymus itoi Matsuo sp. nov. (Hymenoptera: Torymidae) is described as a parasitoid of Paratephritis fukaii Shiraki (Diptera: Tephritidae) which induces galls on the petioles and peduncles of Farfugium japonicum (L.) Kitam. (Asteraceae) in Japan. Torymid specimens that were previously identified as T. sapporoensis Ashmead in Ito (1947) are identical with T. itoi, which is shown to be different from T. sapporoensis. To complement the insufficient original description, T. sapporoensis is redescribed based on the holotype..
11. Wanggyu Kim, Kiyoko Matsunaga, Naohisa Gyoutoku, Kazunori Matsuo, Tsuneo Minami, Junichi Yukawa, Life history strategy and adult and larval behavior of Macrodiplosis selenis (Diptera
Cecidomyiidae), a species that induces leaf-margin fold galls on deciduous Quercus (Fagaceae), Entomological Science, 10.1111/ens.12138, 18, 4, 470-478, 2015.10, Life historical, behavioral and ecological traits of Macrodiplosis selenis, which induces leaf-margin fold galls on Quercus serrata, Q.mongolica and Q.dentata (Fagaceae) in Japan and South Korea, were studied. Daily activity and larval development indicate that M.selenis is a diurnal and univoltine gall midge. In April, females lay their eggs both on upper and under surfaces of fresh leaves. The duration of the egg stage varies from 5 to 9 days, depending on daily temperatures. Hatched larvae crawl to the upper surface of the leaf margin, where they start to induce galls. Larvae become full-grown in October, drop to the ground in November and overwinter in cocoons on the ground, while larvae of congeners mature in May and drop to the ground in June. A relatively long period of the second larval stadium from July to October on the host trees seems to be effective for M.selenis in avoiding summer mortalities caused by predation and aridity on the ground and by ectoparasitoids that attack mature larvae or pupae on the host leaves. The spatial distribution pattern of M.selenis leaf galls is contagious and the mean gall density per leaf is significantly correlated with the mean crowding. This study adds new insights of life history strategy and adult and larval behavioral pattern to the ecological knowledge of gall midges, and these kinds of information are essential for further studies of M.selenis population dynamics and interactions with other Quercus-associated herbivores..
12. Kazunori Matsuo, Tomohiro Honda, Kyo Itoyama, Masatoshi Toyama, Yoshimi Hirose, Discovery of three egg parasitoid species attacking the shield bug glaucias subpunctatus (hemiptera
Pentatomidae), Japanese Journal of Applied Entomology and Zoology, 10.1303/jjaez.2016.43, 60, 1, 43-45, 2016.01, We reared three parasitoid species from field-collected or sentinel eggs of Glaucias subpunctatus (Walker), which is a serious pest of fruit trees in Japan. Morphological observation revealed that they were Trissolcus japonicus (Ashmead), T. plautiae (Watanabe) (Hymenoptera: Platygastridae) and Anastatus japonicus Ashmead (Hymenoptera: Eupelmidae). With regard to T. japonicus, the results of DNA analysis (a partial COI region of mtDNA) supported those of morphological identification. We did not analyze the DNA of T. plautiae and A. japonicus in this study due to a limited number of specimens. This is the first record of egg parasitoids that attack G. subpunctatus. The specimens examined in this study were kept in the collection of the Entomological Laboratory, Faculty of Agriculture, Kyushu University, Japan..
13. Kazunori Matsuo, Tomoko Ganaha-Kikumura, Suguru Ohno, Junichi Yukawa, Description of a new species of Aphanogmus Thomson (Hymenoptera, ceraphronidae) that parasitizes acarivorous gall midges of Feltiella (Diptera, Cecidomyiidae) in Japan, ZooKeys, 10.3897/zookeys.596.8472, 2016, 596, 77-85, 2016.01, In 2008-2009, we reared small ceraphronids (about 0.5 mm in body length) from cocoons that had been made possibly by two acarivorous species, Feltiella acarisuga (Vallot) and F. acarivora (Zehntner) (Diptera: Cecidomyiidae) in Okinawa, Japan. Detailed morphological observation revealed that the ceraphronid was a new species of Aphanogmus Thomson (Hymenoptera: Ceraphronidae). We describe it as Aphanogmus flavigastris Matsuo, sp. n. Identification of the Aphanogmus species is essential to evaluate its possibly negative effects on the predatory activity of Feltiella species that have been used as control agents against tetranychid mites..
14. Takeshi Shimoda, Kazunori Matsuo, Kaori Yara, Norihide Hinomoto, A simple plant trap for collecting acariphagous insect predators and their parasitoids, Applied Entomology and Zoology, 10.1007/s13355-015-0393-0, 51, 2, 233-240, 2016.05, Although insect predators [Feltiella acarisuga (Vallot), Scolothrips takahashii Priesner, Oligota spp. and Stethorus spp.] play a role in controlling spider mites, it is difficult to collect insect predators directly under field conditions. To prove the suitability of a plant trap for collecting the predators, we investigated the efficiency of potted komatsuna (Brassica rapa L.) and kidney-bean (Phaseolus vulgaris L.) plants inhabited by Tetranychus urticae Koch, using as novel and conventional plant traps respectively, for collecting living insect predators. Large numbers of predators were found on these traps placed in a kudzu vine community [Pueraria montana var. lobata (Willd.) Sanjappa and Pradeep] despite being observed in low densities under the naked eye in the weed community. Significantly higher survival rates (99.5–100 %) were obtained when collecting them from komatsuna traps than those (26.6–61.1 %) obtained with kidney-bean traps due to predators’ entrapment by the hooked trichomes on bean leaves. These results indicate that the komatsuna trap is suitable for collecting living insect predators, even when predators are rarely or not observed directly under the naked eye. We also showed that the komatsuna trap is effective for collecting a parasitoid (Aphanogmus sp.) of F. acarisuga..
15. Junichi Yukawa, Kohjin Nakagawa, Akihiro Kohno, Makoto Tokuda, Keizi Kiritani, Kazunori Matsuo, Hideyuki Mitsui, Tomohisa Fujii, Geographical and annual variations in the proportion of extended diapausing individuals of Illiciomyia yukawai (Diptera
Cecidomyiidae) with reference to an adaptive significance of its bimodal emergence pattern, Entomological Science, 10.1111/ens.12183, 19, 3, 275-289, 2016.07, Illiciomyia yukawai (Diptera: Cecidomyiidae) induces leaf galls on Illicium anisatum (Schisandraceae) and exhibits 1-year (yr) and 2-yr type life history patterns. Geographical and annual variations in the proportion of 2-yr to 1-yr type individuals of I. yukawai were studied from 1977 to 1994 and in 2008, 2009 and 2014. An analysis of geographical variation at 13 different census fields indicated that the proportion of 2-yr type individuals significantly increased with the decrease of mean annual temperature reflected by altitudinal and latitudinal gradients. However, a multiple regression analysis indicated that the annual variation in the proportion was not correlated with temperature, gall density, abundance of host resources or parasitism by hymenopteran parasitoids. Thus, we eliminated the effects of these external factors that have been thought to determine the annual variation. We need to take alternative intrinsic factors, instead of external factors, into consideration to explain the annual variation. The fall of galled leaves occasionally caused a higher mortality of 2-yr type individuals than those of 1-yr type. Nevertheless, 2-yr type individuals exist. We considered that the existence of 2-yr type individuals of I. yukawai has an adaptive significance to diversify risks against catastrophic events such as the serious shortage of host buds and high percentage of parasitism that happen more frequently than the high mortality caused by the fall of galled leaves..
16. Junichi Yukawa, Hiroyuki Yoshimura, Kazunori Matsuo, Wanggyu Kim, New record of an alien gall midge, Oligotrophus betheli (Diptera
Cecidomyiidae) on a North American Juniperus horizontalis (Cupressaceae) in Japan, with reference to its ecological traits and possibility of further dispersal and host range expansion, Applied Entomology and Zoology, 10.1007/s13355-017-0492-1, 52, 3, 417-427, 2017.08, On the basis of adult morphological features together with the profile of infestation on the host plant, we identify a gall midge that is responsible for the discoloration of young twig tips of Juniperus horizontalis Moench (Cupressaceae) in Japan to be Oligotrophus betheli Felt (Diptera: Cecidomyiidae). Both O. betheli and J. horizontalis are native to North America. This is the sixth example of an alien gall midge on its alien host plant in Japan. Oligotrophus betheli is redescribed to offer some morphological characteristics that were not given previously. Information on the distribution, host range, life history pattern and daily activity of O. betheli is provided and the possibility of its further dispersal and host range expansion is discussed. A larval parasitoid is identified to the generic level and the effect of spiders that catch adult gall midges in their webs is discussed..
17. Kazunori Matsuo, Tomohisa Fujii, Makoto Tokuda, Tomoko Ganaha-Kikumura, Junichi Yukawa, Kenzou Yamagishi, Descriptions of two new species of platygaster latreille that attack gall midges (Diptera, cecidomyiidae) with notes on their biology (Hymenoptera, platygastridae), ZooKeys, 10.3897/zookeys.754.23296, 2018, 754, 113-125, 2018.01, Platygaster ingeniosus Matsuo & Yamagishi, sp. n. and P. urniphila Matsuo & Yamagishi, sp. n. (Hymenoptera: Platygastridae) are described from Japan. The former species is an egg-larval solitary parasitoid of Masakimyia pustulae Yukawa and Sunose (Diptera: Cecidomyiidae). The latter species is an egg-larval gregarious parasitoid of Rhopalomyia longitubifex (Shinji) (Diptera: Cecidomyiidae)..
18. Kazunori Matsuo, Yoshimi Hirose, Takeshi Yokoyama, Yumiko Nakajima, Yu Feng Hsu, Yutaka Banno, Discovery of a New Species of Telenomus (Hymenoptera
Scelionidae) Parasitic on Eggs of Bombyx mandarina and Bombyx mori (Lepidoptera: Bombycidae) in Japan and Taiwan, Journal of insect science (Online), 10.1093/jisesa/iey072, 18, 4, 2018.07, We reared a Telenomus species from eggs of Bombyx mandarina (Moore) (Lepidoptera: Bombycidae) and Bombyx mori (Linnaeus) (Lepidoptera: Bombycidae) in Japan, and from eggs of B. mandarina in Taiwan. Morphological examination revealed that this Telenomus species is new to science. In this article, we describe it as Telenomus moricolus Matsuo et Hirose, sp. nov. Because B. mandarina is considered to be an ancestor of B. mori, a domestic insect, it is reasonable to assume that B. mandarina is an original host of T. moricolus. This is the second discovery of an egg parasitoid attacking wild and domesticated silkworms, following the first discovery of T. theophilae, a Chinese species. The significance of the discovery of T. moricolus is discussed in relation to examining the effects of host-insect domestication on egg parasitism..
19. Ayman Khamis Elsayed, Kazunori Matsuo, Wanggyu Kim, Nami Uechi, Junichi Yukawa, Naohisa Gyoutoku, Makoto Tokuda, A new Asphondylia species (Diptera
Cecidomyiidae) and a eulophid wasp (Hymenoptera) inducing similar galls on leaf buds of Schoepfia jasminodora (Schoepfiaceae), with reference to their ecological traits and a description of the new gall midge, Entomological Science, 10.1111/ens.12312, 21, 3, 324-339, 2018.09, Different gall inducers belonging to distinct insect orders are rarely known to induce similarly shaped galls on the same host plant organs. We report that Asphondylia tojoi Elsayed & Tokuda sp. nov. (Diptera: Cecidomyiidae) and Ceratoneura sp. (Hymenoptera: Eulophidae) induce galls on leaf buds of Schoepfia jasminodora Sieb. et Zucc. (Schoepfiaceae). We describe the gall midge species as new to science and report a phylogenetic analysis for known Japanese Asphondylia species. We also describe life histories of the two species, based on monthly surveys during 2015–2017: although both species are multivoltine, A. tojoi overwinters as first instars in galls, whereas Ceratoneura sp. possibly does so as adults outside the galls. In addition, the internal structure of galls differed between the two species. Galls containing A. tojoi consist of a single chamber with inner walls clearly covered with whitish fungal mycelia after the gall midges develop into second instars. Those containing the Ceratoneura sp. have multiple chambers with hard black inner walls. Although some eulophids are known to be inquilines of galls induced by Asphondylia species, we consider that the Ceratoneura sp. is probably a true gall inducer because of the different gall structure and absence of fungal mycelia in their galls. This is the first report detailing the annual life history of a Ceratoneura species. Asphondylia tojoi represents the first example of monophagous Asphondylia species with a multivoltine life history on a deciduous tree..
20. Makiko Odaka, Kazunori Matsuo, Kazumasa Ogino, Tamotsu Kanazawa, Ryoko Baba, Yoshiyuki Sakata, Kenichi Asada, Syoujirou Kasa, Kenji Takai, Ken Maeda, Efficacy of a novel mixture of substances derived from food and food additives for controlling Dermanyssus gallinae (Mesostigmata
Dermanyssidae), Applied Entomology and Zoology, 10.1007/s13355-018-0587-3, 54, 1, 31-38, 2019.02, Dermanyssus gallinae De Geer (Mesostigmata: Dermanyssidae), also known as poultry red mite, causes serious economic losses to the poultry industry worldwide. In this study, a mixture of substances derived from food and food additives (SFF), including a polysaccharide extract from laver seaweed, Pyropia yezoensis (Bangiaceae), was examined for acaricidal effects. Treatment with SFF was more effective in killing mites by blocking their respiratory organs than SFF without the polysaccharide extract. In a field trial, treatment with SFF reduced the density of mites in a poultry farm as well as the proportion of blood-stained eggs. This SFF appears useful for controlling the population of D. gallinae in the poultry farms..
21. Kazunori Matsuo, Kaori Yara, Kumiko Kagoshima, Midori Tuda, Seiichi Moriya, Finding of Torymus koreanus (Hymenoptera
Torymidae) attacking Dryocosmus kuriphilus (Hymenoptera: Cynipidae) in Japan, Entomological Science, 10.1111/j.1479-8298.2010.00416.x, 14, 1, 100-102, 2011.01, Torymus koreanus (Hymenoptera: Torymidae) was reared from galls of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) for the first time in Japan. We here report morphological features and partial mtDNA sequencing data of T. koreanus. Torymus koreanus has several common characteristics with species of the cyaneus group defined by Zavada (2003). According to the key to species groups defined by Graham and Gijswijt (1998), it does not belong to any species group because of the entire posterior margin of metasomal tergum five..
22. Junichi Yukawa, Hiroshi Ikenaga, Shinsuke Sato, Makoto Tokuda, Tomoko Ganaha-Kikumura, Nami Uechi, Kazunori Matsuo, Misako Mishima, Gene Sheng Tung, Jong Cheol Paik, Bao Qing Ren, Xiao Yu Dong, Description and ecological traits of a new species of Pitydiplosis (Diptera
Cecidomyiidae) that induces leaf galls on Pueraria (Fabaceae) in East Asia, with a possible diversification scenario of intraspecific groups, Entomological Science, 10.1111/j.1479-8298.2011.00476.x, 15, 1, 81-98, 2012.01, A gall midge that induces thick lenticular galls on leaflets of Pueraria species (Fabaceae) in Japan, mainland China, Taiwan and South Korea is described as Pitydiplosis puerariae sp. nov. (Diptera: Cecidomyiidae). Tanaostigmodes puerariae (Hymenoptera: Tanaostigmatidae), described earlier from mainland China as an inducer of the lenticular gall, is regarded to be an inquiline. Pitydiplosis puerariae is distinguishable from the only known congener, the Nearctic Pitydiplosis packardi, by the male genitalia with entire aedeagus and with hypoproct that is as long as cerci and bilobed with a U-shaped emargination. DNA sequencing data indicate the existence of three genetically different intraspecific groups: (i) "YNT-montana group" induces galls on Pueraria montana on the Yaeyama Islands, Japan and in northern Taiwan; (ii) "CT-montana group" on P. montana in central Taiwan; (iii) and "JCK-lobata group" on Pueraria lobata in mainland China, South Korea and Japan north of Okinoerabu Island. A possible diversification scenario of the three groups is hypothesized based on DNA sequencing data and geohistorical information. A distribution gap of the gall midge on five islands between Tokunoshima and Ishigaki Islands, Japan was confirmed by intensive field surveys. Ecological traits and adult behavior of Pity puerariae are also described. Its possibility as a potential biological control agent against P. lobata seems counter-indicated..
23. Kaori Yara, Kazunori Matsuo, Terunori Sasawaki, Takeshi Shimoda, Seiichi Moriya, Influence of the introduced parasitoid Torymus sinensis (Hymenoptera
Torymidae) on T. koreanus and T. beneficus as indigenous parasitoids of the chestnut gall wasp Dryocosmus kuriphilus (Hymenoptera: Cynipidae) on chestnut trees in Nagano Prefecture, Japan, Applied Entomology and Zoology, 10.1007/s13355-011-0088-0, 47, 1, 55-60, 2012.02, We describe here the parasitoid wasps Torymus sinensis Kamijo and T. beneficus Yasumatsu & Kamijo (early-spring and late-spring strains), which are introduced and indigenous natural enemies of the chestnut gall wasp Dryocosmus kuriphilus Yasumatsu, an invasive chestnut pest in Japan. We recently discovered specimens of T. koreanus Kamijo, endemic in Korea, among Torymus parasitoids collected from D. kuriphilus galls in a Japanese chestnut orchard. In this study we compare the composition of Torymus parasitoids emerging from D. kuriphilus galls before and after the release of T. sinensis. Before the release of T. sinensis, early-spring and late-spring strains of T. beneficus predominated (58. 3 and 20. 8% of specimens collected). However, a few years after the release, both T. beneficus strains had been almost completely displaced by T. sinensis. In contrast to the rapid decrease in T. beneficus, T. koreanus did not decrease drastically before and even after the release of T. sinensis (approximately 10-20% of specimens collected). These results suggest that not a few T. koreanus were present in the Japanese chestnut orchard investigated at least several years after the release of T. sinensis, although both the T. beneficus strains were rapidly displaced by T. sinensis during this period..
24. Yoshihisa Abe, Mantu Bhuyan, Jiten Mech, Pranab R. Bhattacharyya, Tatsuya Ide, Misako Mishima, Chika Suyama, Shinsuke Sato, Kazunori Matsuo, Nakatada Wachi, Discovery of an oak gall wasp (Hymenoptera
Cynipidae) inducing galls on deciduous oak trees in India, Entomological Science, 10.1111/j.1479-8298.2011.00510.x, 15, 3, 340-342, 2012.07, We report for the first time the occurrence of an oak gall wasp Andricus mukaigawae (Mukaigawa) (Hymenoptera: Cynipidae) on the deciduous oak Quercus griffithii Hook. F & Thomson ex Miq. in India. Andricus mukaigawae is the only cynipid species that has been observed to induce galls on deciduous oak species in India to date. In addition, this is the first record of a gall wasp species with a distribution extending all the way from the eastern Palearctic region to the Indian subcontinent, suggesting the existence of a close relationship between cynipid faunas on deciduous oak trees in the two regions..
25. Kazunori Matsuo, Man Miao Yang, Gene Sheng Tung, Makoto Tokuda, Junichi Yukawa, Description of a new and redescriptions of two known species of Torymus (Hymenoptera
Torymidae) in Taiwan with a key to Taiwanese species, Zootaxa, 3409, 47-57, 2012.08, Torymus flavigastris Matsuo sp. nov. (Hymenoptera: Torymidae) is described as a parasitoid of unidentified gall midges (Diptera: Cecidomyiidae) that induce galls on Litsea acuminata (Blume) Kurata (=Actinodaphne acuminata (Blume) Meisner) (Lauraceae), Machilus pseudolongifolia Hayata (Lauraceae), and Eurya chinensis Robert Brown (Theaceae) in Taiwan. This is the first record of Torymidae associated with gall midges on Lauraceae and Theaceae. Redescriptions of T. aiolomorphi and T. orientalis and a key to species of Torymus known in Taiwan are provided..
26. Kazunori Matsuo, An endoparasitic species of Pteromalidae (Hymenoptera
Chalcidoidea) attacking Aphidoletes aphidimyza (Diptera: Cecidomyiidae), Applied Entomology and Zoology, 10.1007/s13355-012-0128-4, 47, 4, 373-378, 2012.11, A solitary endoparasitic species of Pteromalidae (Hymenoptera: Chalcidoidea) was reared from pupae of an aphidophagous gall midge, Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae), in Japan. The parasitoid was identified as Gastrancistrus fuscicornis Walker, a species that has been recorded from Europe. An unidentified aphid has been proposed as being a host of G. fuscicornis, but the study reported here confirmed that G. fuscicornis is an endoparasitoid of A. aphidimyza. I consider that G. fuscicornis may not be a parasitoid of aphid. I found a nontentorial pit on the head of male and female of G. fuscicornis. According to the definition of the nontentorial pits, the pit found in G. fuscicornis corresponds to the facial pit. This is the first finding of the facial pit in Chalcidoidea. Morphological differences between G. fuscicornis and its allied species are provided..
27. Kazunori Matsuo, Nami Uechi, Makoto Tokuda, Junichi Yukawa, Taxonomic position and ecological traits of Sigmophora tricolor (Hymenoptera
Eulophidae), a parasitoid of Asphondylia yushimai (Diptera: Cecidomyiidae), and description of a new species of Sigmophora, Applied Entomology and Zoology, 10.1007/s13355-013-0195-1, 48, 3, 355-363, 2013.08, Sigmophora tricolor (Ashmead) and Sigmophora sayatamabae (Ishii) (Hymenoptera: Eulophidae) were resurrected from Sigmophora brevicornis (Panzer), on the basis of morphological differences between the first two and the last, although Ikeda (Ins Matsum 55:37-74 1999) had synonymized Tetrastichus tricolor and Tetrastichussayatamabae with S. brevicornis. We then synonymized S. sayatamabae with S. tricolor. Japanese Sigmophora specimens that were reared from Pseudasphondylia neolitseae Yukawa (Diptera: Cecidomyiidae) on Neolitsea sericea (Blume) Koidzumi (Lauraceae), and Asphondylia yushimai Yukawa and Uechi (Diptera: Cecidomyiidae) on Lespedeza bicolor Turczaninow (Fabaceae) were newly identified as S. tricolor. We redescribe S. tricolor because its original description was insufficient for identification. In addition, we describe a new species of Sigmophora that parasitizes Asphondylia morivollera (Naito) on Morus alba Linnaeus (Moraceae) and an unidentified gall midge on Hydrangea serrata (Thunberg) Seringe (Hydrangeaceae) in Japan. Parasitic strategies and annual life history of S. tricolor are discussed..
28. Kazunori Matsuo, Yoshimi Hirose, Norman F. Johnson, A taxonomic issue of two species of Trissolcus (Hymenoptera
Platygastridae) parasitic on eggs of the brown-winged green bug, Plautia stali (Hemiptera: Pentatomidae): Resurrection of T. plautiae, a cryptic species of T. japonicus revealed by morphology, reproductive isolation and molecular evidence, Applied Entomology and Zoology, 10.1007/s13355-014-0260-4, 49, 3, 385-394, 2014.01, Trissolcus plautiae (Watanabe) is known as a major egg parasitoid of the brown-winged green bug Plautia stali Scott, which is a serious pest of various fruit trees in Japan. Although T. plautiae was synonymized with T. japonicus (Ashmead) in 1981, both scientific names have been used for the same egg parasitoid of P. stali for about the past 30 years because of their taxonomic confusion. To promote an effective IPM program for P. stali using its egg parasitoids, we attempted to resolve the confusion by the use of a variety of methods. On detailed observation of adult morphology, we found that sublateral setae on the T1 are present in T. plautiae and absent in T. japonicus, and that this morphological difference is corroborated by more subtle differences between the two species. This finding supports the view that they are different species. The view was also supported by the results of mating experiments to determine the reproductive isolation of T. plautiae from T. japonicus and DNA analysis of these two species. We conclude that T. plautiae is a cryptic species of T. japonicus and resurrect T. plautiae from T. japonicus stat. rev..
29. Wanggyu Kim, Junichi Yukawa, Keith M. Harris, Tsuneo Minami, Kazunori Matsuo, Małgorzata Skrzypczyńska, Description, host range and distribution of a new Macrodiplosis species (Diptera
Cecidomyiidae) that induces leaf-margin fold galls on deciduous Quercus (Fagaceae) with comparative notes on Palaearctic congeners, Zootaxa, 10.11646/zootaxa.3821.2.3, 3821, 2, 222-238, 2014.06, A gall midge that induces upwardly folded leaf-margin galls on Quercus serrata, Q. mongolica and Q. dentata (Fagaceae) in Japan and South Korea is described as Macrodiplosis selenis sp. n. (Diptera: Cecidomyiidae). M. selenis is distinguished from Palaearctic congeners by a combination of morphological characters. Genetic differences supported the result of morphological comparison and indicated that M. selenis is closely related to the European M. roboris, whose gall is similar to that of M. selenis..
30. Tomohisa Fujii, Kazunori Matsuo, Yoshihisa Abe, Junichi Yukawa, Makoto Tokuda, An endoparasitoid avoids hyperparasitism by manipulating immobile host herbivore to modify host plant morphology, PloS one, 10.1371/journal.pone.0102508, 9, 7, 2014.07, Many parasitic organisms have an ability to manipulate their hosts to increase their own fitness. In parasitoids, behavioral changes of mobile hosts to avoid or protect against predation and hyperparasitism have been intensively studied, but host manipulation by parasitoids associated with endophytic or immobile hosts has seldom been investigated. We examined the interactions between a gall inducer Masakimyia pustulae (Diptera: Cecidomyiidae) and its parasitoids. This gall midge induces dimorphic leaf galls, thick and thin types, on Euonymus japonicus (Celastraceae). Platygaster sp. was the most common primary parasitoid of M. pustulae. In galls attacked by Platygaster sp., whole gall thickness as well as thicknesses of upper and lower gall wall was significantly larger than unparasitized galls, regardless of the gall types, in many localities. In addition, localities and tree individuals significantly affected the thickness of gall. Galls attacked by Platygaster sp. were seldom hyperparasitized in the two gall types. These results strongly suggest that Platygaster sp. manipulates the host plant's development to avoid hyperparasitism by thickening galls..
31. Matsuo K, Suga M, Ogura-Tsujita Y, A new host record of Sphegigaster hamugurivora Ishii, 1953 (Hymenoptera: Pteromalidae), Japanese Journal of Systematic Entomology, 25, 1, 43-44, 2019.07.
32. Matsuo K, Ohta I, Mizutani N, Konishi K, The first host record of Callitula fulvipes Kamijo, 1981 (Hymenoptera: Pteromalidae), Japanese Journal of Systematic Entomology, 25, 1, 1-2, 2019.06.
33. Triapitsyn SV, Adachi-Hagimori T, Rugman-Jones PF, Barry A, Abe A, Matsuo K, Ohno K, Egg parasitoids of the tea green leafhopper Empoasca onukii (Hemiptera, Cicadellidae) in Japan, with description of a new species of Anagrus (Hymenoptera, Mymaridae), ZooKeys, 836, 93-112, 2019.04.
34. Odaka M, Matsuo K, Ogino K, Kanazawa T, Baba R, Sakata Y, Asada K, Kasa S, Takai K, Maeda K, Efficacy of a novel mixture of substances derived from food and food additives for controlling Dermanyssus gallinae (Acari: Dermanyssidae), Applied Entomology and Zoology, 54, 31-38, 2019.02.
35. Matsuo K, Hirose Y, Yokoyama T, Nakajima Y, Hsu YF, Banno Y, Discovery of a new species of Telenomus (Hymenoptera: Scelionidae) parasitic on eggs of Bombyx mandarina and Bombyx mori (Lepidoptera: Bombycidae) in Japan and Taiwan, Journal of Insect Science, 18, 4(10), 1-7, 2018.07.
36. Elsayed AK, Matsuo K, Kim W, Uechi N, Yukawa J, Gyoutoku N, Tokuda M, A new Asphondylia species (Diptera: Cecidomyiidae) and a eulophid wasp (Hymenoptera) inducing similar galls on leaf buds of Schoepfia jasminodora (Schoepfiaceae), with reference to their ecological traits and a description of the new gall midge, Entomological Science, 21, 324-339, 2018.05.
37. Matsuo K, Fujii T, Tokuda M, Ganaha-Kikumura T, Yukawa J, Yamagishi K, Descriptions of two new species of Platygaster Latreille that attack gall midges with notes on their biology, ZooKeys, 754, 113-125, 2018.05.
38. Junichi Yukawa, Hiroyuki Yoshimura, Kazunori Matsuo, Wanggyu Kim, New record of an alien gall midge, Oligotrophus betheli (Diptera: Cecidomyiidae) on a North American Juniperus horizontalis (Cupressaceae) in Japan, with reference to its ecological traits and possibility of further dispersal and host range expansion, Applied Entomology and Zoology, 52, 417-427, 2017.07.
39. Kazunori Matsuo, Etsuro Takagi, New host records of Macrodasyceras japonicum (Ashmead, 1904) (Hymenoptera: Torymidae), with notes of its morphology, Japanese Journal of Systematic Entomology, 22, 175-178, 2016.11.
40. Kazunori Matsuo, Tomoko Ganaha-Kikumura, Suguru Ohno, Junichi Yukawa, Description of a new species of Aphanogmus Thomson (Hymenoptera: Ceraphronidae) that parasitizes acarivorous gall midges of Feltiella (Diptera: Cecidomyiidae) in Japan, Zookeys, 596, 77-85, 2016.06.
41. Junichi Yukawa, Kazuhisa Miyamoto, Takuhiro Yamaguchi, Ken Takesaki, Nami Uechi, Kazunori Matsuo, Key-factor/key-stage analysis of long-term life table data for a fruit gall midge, Asphondylia sphaera (Diptera: Cecidomyiidae), Ecological Entomology, 10.1111/een.12331, 2016.06.
42. Kazunori Matsuo, Nami Uechi, Makoto Tokuda, Kaoru Maeto, Junichi Yukawa, Host range of braconid species (Hymenoptera: Braconidae) that attack Asphondyliini (Diptera: Cecidomyiidae) in Japan, Entomological Science, 10.1111/ens.12167, 19, 3-8, 2016.01.