Macroscytus japonensis SCOTT
Creators: name: Lis, J. A.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Macroscytus
Macroscytus japonensis

description: Macroscytus japonensis SCOTT
(Figs 126­128)
Aethus foveolus, not of DALLAS: WALKER 1867: 157 [part].
Aethus aequalis, not of WALKER: WALKER 1867: 159 [syntype from Japan]; LETHIERRY & SEVERIN 1893: 81 [part]; JOSIFOV & KERZHNER 1978: 189 [part].
Aethus badius, not of WALKER: WALKER 1867: 159 [syntype from North China].
Macroscytus japonensis SCOTT, 1874: 289 [name only], 294.
Macroscytus javanus, not of MAYR: SIGNORET 1881: 646 [part], 1883a: 478 [part]; LETHIERRY & SEVERIN, 1893: 71 [part].
Macroscytus niponensis SIGNORET, 1883a: 475 (syn. by HORVÁTH 1919: 241).
Macroscytus subaeneus, not of DALLAS: HORVÁTH 1901: 248; OSHANIN 1906: 12 [part], 1910: 4, 1912: 2; WU 1935: 269; ESAKI & ISHIHARA 1951: 29; TAKARA & HIDAKA 1960: 182; STICHEL 1962: 775 [part]; SIENKIEWICZ 1964: 137 [part]; HSIAO et al. 1977: 46 [part]; TOMOKUNI 1979: 104, 1981: 104, 1985: 154; ZHANG & LIN 1992: 108.
Macroscytus badius, not of DALLAS: MOIZUDDIN & AHMAD 1990: 325 [part].
Macroscyrtus [sic!] subaenus [sic!]: LIN & ZHANG 1992: 218.
DESCRIPTION
Body 8.10­10.5 mm in length, 4.65­6.00 mm in width, from castaneous to almost black, umbones and posterior margin of pronotum sometimes slightly paler than the disc.
Head almost impunctate, bearing tiny punctures, lateral parts sometimes wrinkled and with a few punctures; clypeus without a subapical pair of hair­like setae, each paraclypeus submarginally with a single preocular setigerous puncture bearing hair­like seta (Fig. 126); ocular index 1.98­3.00; interocellar index 5.5­9.1; length of antennal segments (in mm): 0.29­0.46: 0.43­0.63: 0.51­0.69: 0.69­0.88: 0.72­0.94.
Pronotum with transverse impression behind calli absent or only slightly marked on either side and interrupted medially; pronotal disc with punctures behind head, in lateral parts and behind calli; lateral margins with 5­6 submarginal setigerous punctures. Anterior convexity of propleuron moderately punctate, posterior convexity with large punctures, propleural depression with a row of coarse punctures.
Scutellum evenly punctate, punctures slightly larger than those on pronotum, apex and basal part impunctate.
Clavus with one complete and two or three partial rows of punctures; exocorium and middle part of mesocorium almost evenly densely punctate, punctures smaller than those on scutellum; costa almost entirely separated from exocorium, bearing 2 setigerous punctures.
Male hind tibiae slightly carinate, and subbasally with distinct small tubercles, hind femora with several small teeth on ventral margin and one subapical tooth on the dorsal; female hind femora without teeth, hind tibiae without tubercles.
Abdominal sterna with punctures forming patches posterior to spiracles, sutures and surface laterally of spiracles with a few punctures.
Male genitalia as in Figs 127­128.
TYPE DATA
Lectotype female (designated by LIS, 1994a: 222) of Macroscytus japonensis SCOTT: Japan (BMNH).
Lectotype female (designated by LIS, 1994a: 222) of Macroscytus niponensis SIGNORET: Japan (NNML).
MATERIAL EXAMINED
Lectotype of Macroscytus japonensis, Lectotype of Macroscytus niponensis, and 57 other specimens: Burma: North Burma, Adung Valley, 1 ex. (BMNH). China: North China, 1 ex. (BMNH); Gan Chouen Fou, Anshunfu, 2 exx. (MNHN, UO); Peking, 3 exx. (MNHU); Kiautschou, Tsingtau, 1 ex. (MNHU); Chekiang, Hangtcheou [= Hangzhou], 1 ex. (MNHN); Chen­Si, 3 exx. (MNHN, UO); ChenfuWu, 1 ex. (BMNH); Shanghai, 2 exx. (NNML); Sichuan, Ulian, Utschan­Tschou, 1 ex. (ZIP); Kouy­Tcheou, Kouy Yang, 1 ex. (MNHN); Central China, 1 ex. (NNML); Kansu, Chengshien, 1 ex. (NNML); Nanning Kwangtung, 1 ex. (NNML); 35km NW Peking, Fragrant Hills, 1 ex. (NHMW); Taiwan, 1 ex. (BMNH); Taiwan, Taihanroku, 1 ex. (BMNH); Taiwan, Teraso, 3 exx. (HNHM); Taiwan, Kaohsiung, Shanping, 1 ex. (CMNH). Japan: 1 ex. (BMNH); 2 exx. (MNHU); Honshu, Miura, Kanagawa, 3 exx. (NSMT, UO); Ryukyus, Funaura, Iriomote I., 3 exx. (NSMT, UO); Shikoku, Mt. Nakatsuno­mine Tokushima, 4 exx. (NSMT, UO). Korea: East Korea, Prov. Kanwan, Kum­gang­son, 4 exx. (HNHM, UO); Sarivon, 1 ex. (HNHM); South Korea, Song Panaku, Halla San, Cheju Do Is., 2 exx. (NSMT). Vietnam: Tonkin Centr., Env. de Yen­Bai, 1 ex. (MNHN); Tonkin, Reg. de Yen­Bay, 1 ex. (MNHN); Tonkin, Hoa­Binh, 1 ex. (MNHN); Haut­Tonkin, Lao­Kay, 1 ex. (MNHN); Pr. Annam, Than Hoa, 1 ex. (IRSNB); Tonkin, Phu Lang Huong, 1 ex. (MNHN); Hanoi, 4 exx. (NhMW, BMNH, UO).
DISTRIBUTION
Burma (north), Korea, Japan, China (Beijing, Fujian, Gansu, Guangdong, Guizhou, Henan, Hubei, Hunan, Shandong, Shanghai, Shanxi, Sichuan, Taiwan, Zhejiang), Russia (Far East), Vietnam (north).
description: Published as part of Lis, J. A., 2000, A revision of the burrower-bug genus Macroscytus Fieber, 1860 (Hemiptera: Heteroptera: Cydnidae), pp. 359-509 in Genus (Wrocław) 11 (3) on pages 429-431