著者
友国 雅章
出版者
国立科学博物館
雑誌
国立科学博物館専報 (ISSN:00824755)
巻号頁・発行日
vol.43, pp.349-354, 2006

After the publication of Tomokuni et al. (2000), a good number of the heteropterous insects were collected at the Imperial Palace, Tokyo, Japan, under the "Monitoring survey of fauna of the Imperial Palace, Tokyo" conducted by the National Science Museum, Tokyo. This paper reports these material along with a few additional specimens from the Akasaka Imperial Gardens and the Tokiwamatsu Imperial Villa left off the list of Tomokuni (2005). In total 49 species of Heteroptera were found from these three places including four newly recorded species: Apolygus pulchellus, Elasmucha putoni, Eurydema rugosa, and an undescribed species of Miridae (Japanese name, Okuro-kasumikame), all common in Kanto District around Tokyo. Of 49 species, Oncocephalus breviscutum, Cimicicapsus koreanus, and Eurystylus luteus are new to the Imperial Palace, Cletus punctiger is new to the Akasaka Imperial Gardens, and Sastragala esakii, Poecilocoris lewisi, Riptortus clavatus, and Rhopalus maculatus to the Tokiwamatsu Imperial Villa. These species are common in Kanto District as well. Cymus aurescens, found from the Akasaka Imperial Gardens, has been unknown from the Imperial Palace. This may due to the lack of preferable host plants in the flora of the latter.
著者
友国 雅章
出版者
国立科学博物館
雑誌
国立科学博物館専報 (ISSN:00824755)
巻号頁・発行日
vol.18, pp.153-161, 1985

The heteropterous fauna of the Oki Islands lying far-off the Shimane Peninsula, western Honshu, Japan, has been poorly known up to the present. Eighty-six species of Heteroptera from there are listed in the present paper. Of these, 38 are newly recorded from the Islands based on the materials collected by the author's research made in 1984. These 86 species excepting Orius sp. are classified into the following five groups according to the difference in their distributional patterns as shown in the author's papers (TOMOKUNI, 1979,1981). Group 1 contains 18 species of the Oriental origin such as Macroscytus subaeneus. Scotinophara lurida, Nezara antennata, Plautia crossota stali, Leptocorisa chinensis and so on. Of these, Gardena melinarthrum is the most typical species of this group. As far as the author knows, this rare reduviid has been known only from Kyushu in Japan. Group 2 is predominant in the heteropterous fauna of the Islands. It consists of 36 species, that is Megacopta punctatissima, Poecilocoris lewisi, Halyomorpha mista, Homoeocerus unipunctatus, Piocoris varius and so on, distributed within the southern area of the Palearctic Region. Group 3 includes 24 species, whose ranges are limited within the northern part of the Palearctic Region, such as Legnotus triguttulus, Graphosoma rubrolineatum, Dybowskyia reticulata, Carbula humerigera and so no. One of the representatives of this group is Saldula scotica which dwells on the surfaces of large dry stones exposed in mountain streams. The heteropterous fauna of the Islands is comparatively rich in this group considering their low elevation. This seems to be attributed to the richness of vegetation. The 6 species, Nysius plebejus, Acalypta sauteri, Stephanitis takeyai, Amphiareus obscuriceps, Lygocoris (Apolygus) nigritulus and Gerris (Gerris) yasumatsui, are discriminated from the others as Group 4. Though they are endemic to Japan, all of them seem to be of Palearctic origin. Group 5 includes only one widespread species, Zicrona caerulea. The heteropterous fauna of the Oki Islands is rather poor, and most of the known species are common and widely distributed in the other areas of Japan. The following two reasons can be pointed out for this : 1) The area of the Islands is small (348 km^2), 2) The Islands were covered by volcanic products from the end of the Tertiary to the beginning of the Quaternary, though they were isolated on the Sea of Japan at the middle of the Miocene. It is, however, worth noticing that two apterous species, Acalypta sauteri and Schidium marcidum, are distributed on the Islands. The problem when and how the ancestors of these species immigrated in the Islands should be carefully elucidated on the basis of more adequate data than are now at hand.
著者
友国 雅章
出版者
国立科学博物館
雑誌
国立科学博物館専報 (ISSN:00824755)
巻号頁・発行日
vol.14, pp.103-116, 1981

The heteropterous fauna of the Izu Peninsula protruding onto the Pacific from central Honshu, Japan, has been rather poorly known up to the present. In this paper, 132 heteropterous species, including 49 previously recorded, belonging to 31 families are listed. Though the faunal research is not sufficient yet, a brief zoogeographic discussion is made on the basis of these data. These 132 species, except for two undetermined ones, are classified into the following five groups according to the difference in their distributional patterns. Group 1 in cludes 27 species, whose ranges are limited within the Oriental Region and Japan, such as Macroscytus subaeneus, Eysarcoris ventralis, Eucorysses grandis, Scotinophara lurida, Cletus punctiger, Physopelta cincticollis, Schidium marcidum, Sirthenea flavipes, Microvelia douglasi and so on. Of these, Eucorysses grandis is the only species whose habitat seems to be closely associated with laurel forests. Most of the other species, excepting predacious ones, are very common in Japan and are more or less injurious to such cultivated crops as rice, beans and citrus. They appear to have secured their superior position in the heteropterous fauna of Japan according to the expansion of acreage under cultivation by continuous human activities. Group 2 contains 52 species distributed within the southern area of the Palaearctic Region extending from China to Japan, such as Megacopta punctatissima, Megymenum gracilicorne, Gonopsis affinis, Halyomorpha mista, Poecilocoris lewisi, Anaxandra gigantea, Urostylis westwoodi, Colpura lativentris, Anacanthocoris striicornis, Plinachtus bicoloripes, Piocoris varius, Acanthaspis cincticrus, Rhinocoris ornatus, Velinus nodipes, Hydrometra albolineata, Metrocoris histrio, Notonecta triguttata, Laccotrephes japonensis, Diplonychus japonicus and so on. Though they occur in various vegetation growing on every altitude from lowlands to the beech zone, none of them seem closely connected with laurel forests. Group 3 consists of 25 species, whose distribution is bounded within the northern part of the Palaearctic Region covering Northern Europe, Siberia, Amurland, Sakhalin and Japan, e. g., Arma custos, Carbula humerigera, Lelia decempunctata, Graphosoma rubrolineatum, Acanthosoma forficula, A. denticauda, Elasmucha putoni, Homoeocerus dilatatus, Galeatus spinifrons, Gorpis brevilineatus, Phytocoris nowickyi, Apolygus hilaris, Saldula soctica, Sigara substriata and so on. Many of them, for example Lelia decempunctata, Acanthosoma spp. and Elasmucha spp., mainly inhabit beech forests. This group seems predominant in the heteropterous fauna of the cold-temperate deciduous broadleaved forests of Japan. Group 4 comprises 23 species endemic to Japan, such as Pylorgus colon, Dimorphopterus japonicus, Geocoris proteus, Metochus abbreviatus, Aradus orientalis, Acalypta miyamnotoi, A. tsurugisana, Anthocoris miyamotoi, Onomaus lautus, Speovelia maritima, Aphelocheirus vittatus and so on. Group 5 includes 3 species, Piezodorus hybneri, Liorhyssus hyalinus and Cimex lectularis, which are either cosmopolitan or widespread. Some faunal characteristics of the Izu Peninsula are pointed out mainly based upon the pentatomoid species belonging to the first three groups in comparison with those of such areas as the Tsushima Islands (MIYAMOTO, 1970), the Kii Peninsula (TOMOKUNI, 1979), Saitama Prefecture (NOZAWA, 1978) and Niigata Prefecture (HASEGAWA, 1960) (Table 1) : A. Species of Group 1,probably the Oriental elements, are not more abundant in the Izu Peninsula than in the other areas, though they are much fewer in Niigata Prefecture. B. Species of Group 2,probably the southern Palaearctic elements, show higher percentage in the Tsushima Islands and the Izu Peninsula than in Saitama and Niigata Prefectures. On the contrary, the percentage of Group 3 species, probably the northern Palaeractic elements, is lower in the Tsushima Islands and the Izu Peninsula than in Saitama and Niigata