Alloplasta kuslitzkii Kasparyan, 2007

Watanabe, Kyohei, 2022, Revision of the genus Alloplasta Förster, 1869 (Hymenoptera, Ichneumonidae Banchinae) from Japan, Zootaxa 5188 (1), pp. 55-73 : 62-64

Alloplasta kuslitzkii Kasparyan, 2007

( Figs 1 A , 5 A–D )

Alloplasta kuslitzkii Kasparyan, 2007: 451 .

Specimens examined. JAPAN: [Hokkaido] 1 F, Sapporo City, Misumai, Kannon-zawa , 11–25 May 1993, N. Kuhara leg., MT ( NARO) . [ Honshu ] 1 F , Tochigi Pref., Nasushiobara City , 16 Apr. 2013, E. Katayama leg. ( KPMNH) ; 1 F, Kanagawa Pref., Kiyokawa Vil., Mt. Tanzawa-san , 16 May 2013, T. Taniwaki leg., FIT ( KPMNH) ; 1 F, ditto, 23 May 2013 ( KPMNH) ; 1 F, Kanagawa Pref., Kiyokawa Vil., Mt. Tanzawa-san, Tennojione , 16 May 2013, T. Taniwaki leg., FIT ( KPMNH) ; 1 F, ditto, 31 May 2013 ( KPMNH) ; 1 F, Kanagawa Pref., Sagamihara City, Mt. Oomuro-yama , 22 May 2013, T. Taniwaki leg., FIT ( KPMNH) ; 1 M, ditto, 28 May 2013 ( KPMNH) ; 1 F, ditto, 7 Jun 2013 ( KPMNH) ; 1 F & 1 M, Kanagawa Pref., Yamakita Town, Mt. Hinokiboramaru , 31 May 2013, T. Taniwaki leg., FIT ( KPMNH) ; 1 F, Nagano Pref., Ueda City, Sugadaira , 14 May–4 Jun 2015, S. Shimizu leg., MT ( KPMNH) ; 1 F, Fukui Pref., Yashagaike , 17 May 1980, H. Kurokawa leg. ( KPMNH) ; 1 F, Shiga Pref., Shiga Town, Kitashiga-toge to Shakadake , 18 May 2001, R. Matsumoto leg. ( OMNH) ; 1 F, Nara Pref., Odaigahara , 5 Jun 1981, H. Takemoto leg. ( NARO) ; 1 F, Nara Pref., Obako-dake , 18 May 1994, K. Tenma leg. ( OMNH) ; 8 F, Nara Pref., Nosegawa Town, Obako-dake , 6 May 2002, R. Matsumoto leg. ( OMNH) ; 2 F, Kyoto Pref., Oe Town, Oe-yama , 13 May 2000, R. Matsumoto leg. ( OMNH) ; 1 F, Osaka Pref., Kaizuka City, Izumi-katsuragisan , 22 May 2000, R. Matsumoto leg. ( OMNH) ; 1 F, Yamaguchi Pref., Atou Town, Mt. Takatakeyama , 3 May 2007, S. Tanaka leg. ( OMNH) ; 1 F, Yamaguchi Pref., Iwakuni City, Nishikicho, Mt. Naganoyama , 29 Apr. 2009, S. Tanaka leg. ( OMNH) ; 1 F, Yamaguchi Pref., Iwakuni City, Nishikicho, Mt. Jyakuchi-san , 31 May 2005, S. Tanaka leg. ( OMNH) ; 1 F, ditto, 1 Jun 2006 ( OMNH) ; 1 F, ditto, 7 Jun 2006 ( OMNH) ; 1 F, ditto, 13 May 2009 ( OMNH) . [ Shikoku ] 4 F , Tokushima Pref., Mt. Koutsusan, 12 May 1985, K. Oohara leg. ( NARO) ; 1 F, Ehime Pref., Mts. Odamiyama , 26 Apr. 1995, E. Yamamoto leg. ( NARO) ; 1 F, Kochi Pref., Hongawa Vil., Kaminarashiike , 13 Jun. 2002, R. Matsumoto leg. ( OMNH) . KOREA: 1 F, Kangwondo, Mt. Odaesan, Sangweonsa , 26 May 1989, A. Shinohara leg. ( NSMT) . RUSSIA: 1 F, Primorsky Krai, 10 km south of Chernigovka , 21 May 1979, Zinoviev leg. ( ZISP) .

Description. Female (n = 39). Body length 9.7–12.2 mm, polished and covered with punctures and silver setae.

Head 0.6 × as long as wide. Clypeus 2.2–2.35 × as broad as high, sparsely punctate, strongly convex in lateral view. Face 1.9–2.1 × as broad as high, densely punctate ( Fig. 5 B ), weakly convex medially in lateral view. Malar space 0.4–0.45 × as long as basal mandibular width. POL 1.5–1.85 × as long as OD. OOL 1.1–1.95 × as long as OD. Vertex with short setae, ca. 1.2 × as height as lateral ocellus in lateral view. Antenna with 29–33 flagellomeres. FL I 5.0 × as long as maximum depth and 2.0 × as long as FL II.

Mesosoma densely punctate. Epomia absent. Speculum with or without a small smooth area ( Fig. 5 C ). Mesosternum with long and dense setae, ca. 1.0 × as long as maximum depth of FL I in lateral view. Propodeum with posterior transverse carina largely absent except for short, trace-like ridge. Fore wing length 7.8–10.0 mm. Areolet received vein 2m-cu slightly distant (ca. width of 2m-cu) of the outer angle. Nervellus intercepted at middle ( Fig. 1 A ). Hind femur 6.1–7.1 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.0–4.1: 2.0: 1.4: 0.8: 0.95–1.0. Hind second tarsomere 5.0 × as maximum depth. Tarsal claws pectinate.

Metasoma. T I 1.5–1.9 × as long as maximum width, punctate except for smooth areas on apex, median longitudinal area and base, with minute transverse striae medially and minute longitudinal striae posteriorly. T II 1.05–1.4 × as long as maximum width. T II to T V with minute transverse striae. Ovipositor sheath 1.75–1.8 (holotype: 1.5) times as long as hind tibia.

Coloration ( Figs 1 A , 5 A–D ). Body (excluding wings and legs) black. Lower half of clypeus yellowish brown. Mandible with a yellow marking. Palpi yellowish brown to yellow. Dorso-lateral corner of pronotum and tegula yellowish brown. Mesoscutum with a pair of large yellow markings antero-laterally. Each posterior margin of metasomal tergites narrowly tinged with yellowish brown. Ovipositor reddish brown. Wings hyaline. Veins and pterostigma blackish brown to brown. Median part of pterostigma paler than outer areas. Legs reddish brown except for coxae with a yellow marking. Hind tibia brown to dark reddish brown except for white base. Yellow marking of hind coxa sometimes indistinct or absent. Hind tarsus brown to blackish brown.

Male (n = 2). Similar to female. Clypeus 1.6 × as broad as high. Malar space 0.2 × as long as basal mandibular width. Antenna with 42 flagellomeres. FL I 4.0 × as long as maximum depth and 1.4 × as long as FL II. T I 1.9–2.15 × as long as maximum width. Hind femur 6.0 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.0: 2.0: 1.3–1.4: 0.75–0.9: 1.2.

Coloration. Similar to female. Coxae black except for a white marking of fore and mid coxae. Tibial spurs, trochanters and trochantelli whitish yellow. Hind trochanter tinged with blackish brown. Other coloration of legs similar to female.

Distribution. Japan (Hokkaido, Honshu and Shikoku). Outside Japan, this species has been recorded from Russia and Korea ( Yu et al. 2016; Kang et al. 2020).

Bionomics. Host unknown. Adults were collected in April to June.

Remarks. This is the first record of this species from Japan. This species is remarkably similar to A. tomentosa (Gravenhorst, 1829) and the morphological differences between these species are very slight. Considering the intraspecific variation of Japanese specimens, the only difference between this species and A. tomentosa is in body color, i.e., coxae reddish brown with a conspicuous yellow marking (entirely reddish brown in A. tomentosa ), postero-dorsal corner of pronotum with large yellow area (with small yellow area in A. tomentosa ) and subtegular ridge black with a yellow marking (without a marking in A. tomentosa ).

The author has only examined a single female specimen of A. tomentosa identified by Dr Aubert (deposited in ZISP) in addition to examining the description(s) in the literature. However, as more A. tomentosa need to be examined to establish the relationship between the two species, the Japanese specimens were identified as A. kuslitzkii in this study.

Figures

FIGURE 1. Dorsal habitus of Alloplasta kuslitzkii Kasparyan, 2007 (A) and A. nigripes (Meyer, 1930) (B, C), female (A, B) and male (C).

FIGURE 5. Alloplasta kuslitzkii Kasparyan, 2007, female from Japan—A: lateral habitus; B: head, frontal view; C: mesosoma, lateral view; D: hind coxa, dorso-lateral view.