Leptobatopsis nigricapitis Chandra & Gupta, 1977

Watanabe, Kyohei & Ito, Masato, 2023, Revision of the genus Leptobatopsis Ashmead, 1900 (Hymenoptera, Ichneumonidae, Banchinae) from Japan, with some taxonomic notes of Asian species, Zootaxa 5339 (5), pp. 401-426 : 416-419

Leptobatopsis nigricapitis Chandra & Gupta, 1977

( Figs 1 D, G , 2 G, N , 8 A–C , 10 L, M , 11 G, 13 B, D, F)

Leptobatopsis nigricapitis Chandra & Gupta, 1977: 157 .

Leptobatopsis badia: Momoi, 1970: 373 (in part: paratype).

Leptobatopsis badia: Konishi & Maeto, 2000: 313 .

Materials examined. JAPAN: [Hokkaido] 1 M, Nishino, Kotoni , 25 Jul. 1957, S. Matsumoto & T. Kurosawa leg. ( NARO) [Honshu] 1 F, Aomori Pref., Aomori City, Moya - Yamabuki, 15 Aug. 1992, T. Ichita leg. ( NARO); 1 F, ditto, 15–29 Aug. 1992, T. Ichita leg., yellow adhesive trap ( NARO); 1 M, Niigata Pref., Niigata, 26. VII. 1959, K. Baba leg. ( MNHAH); 1 F, Tochigi Pref., Ohtawara City, Ohtawarajinjya, 28 Jul. 2001, E. Katayama leg. ( KPMNH); 1 F, Tochigi Pref., Nasushiobara City, Osonozawa, 5–14 Aug. 2013, T. Matsumura leg., MT ( KPMNH); 1 F, Chiba Pref., Ichikawa City, Kashiwai, 15 Jul. 2003, H. Suda leg. ( KPMNH); 1 F, Chiba Pref., Ichikawa City, Kitakokubun, 31 Jul. 2003, H. Suda leg. ( KPMNH); 1 M, Saitama Pref., Kodama, Higashi-kodaira, Ishigamijinjya, 9 Aug. 1991, T. Nambu leg. ( NARO); 1 F, Saitama Pref., Kamiizumi Vil., Kamiaguhara, 12 Aug. 1993, T. Nambu leg. ( NARO); 2 M, Saitama Pref., Ogawa, Mt. Sengenyama, 10 Aug. 1994, T. Nambu leg. ( NARO); 1 F, Saitama Pref., Koonan Town, Oshikiri, 18 Sep. 1994, T. Nambu leg. ( NARO); 2 F, Saitama Pref., Yorii Town, Mure, 16 Aug. 2001, T. Nambu leg. ( KPMNH); 3 F, Tokyo, Asakawa, 19 Aug. 1987, K. Konishi leg. ( NARO); 1 F, Tokyo, Hachioji City, Mt. Takao-san, 23 Aug. 1970, T. Kocha leg. ( NARO); 2 F & 5 M, Tokyo, Akiruno City, Ninomiya, Riverside of Tamagawa, 1 Sep. 2009, K. Watanabe leg. ( KPMNH); 1 F, Kanagawa Pref., Kawasaki City, Ikutaryokuchi, 10 Aug. 2001, I. Waki leg. ( KPMNH); 1 F, Shizuoka Pref., Higashiizu Town, Inatori, 11 Jul. 2009, T. Muraki leg. ( KPMNH); 1 M, Aichi Pref., Nagoya, Higashiyama Park, 11–20 Jul. 2001, M. Watanabe leg., MT ( MU); 1 F, ditto, 21–31 Jul. 2001 ( MU); 1 M, Mie Pref., Isejingu, 20 Jul. 2003, A. Kakizoe leg., MT ( KPMNH); 1 F & 1 M, Nara Pref., Soni Vil., Okame-ike, 19 Aug. 2006, K. Harusawa leg. ( OMNH); 1 F & 1 M, Nara Pref., Nara City, Nakamachi, KindaiUniv., 23 Jul. 2011, M. Ito leg. ( KPMNH); 1 F, Nara Pref., Asuka Vil., Kayanomori, 4 Aug. 2005, R. Matsumoto leg. ( OMNH); 1 F, Okayama Pref., Kurashiki City, Mukouyama, 2 Nov. 2002, H. Suenaga leg. ( OMNH). [Izu Isls.] 2 M, Tokyo, Miyakejima Is., Miyake Vil., Tsubota-rindo, 25 Aug.–22 Sep. 2012, K. Tsujii leg., MT ( KPMNH). [Shikoku] 1 M, Tokushima Pref., Zennyujitoh, 6–18 Jun. 2003, K. Ohara leg. ( MU). [Kyushu] 1 M (paratype of L. badia ), Miyazaki Pref., Murasyo, 18 Jul. 1954, K. Nohara leg. ( MNHAH); 2 F, Kagoshima Pref., Takakuma-yama, 27 Aug. 1970, K. Kusigemati leg. ( SEHU); 1 F, Kagoshima Pref., Sata-misaki, 29 Sep. 1978, K. Kusigemati leg. ( SEHU). [Ryukyu Isls.] 1 F, Kagoshima Pref., Yakushima Is., Ambo, 18 Oct. 1971, K. Kusigemati leg. ( SEHU); 1 F, Kagoshima Pref., Yakushima Is., Miyanoura, 19 Jul. 1972, K. Kusigemati leg. ( SEHU); 4 M, ditto, 20 Jun. 1980, K. Kusigemati leg. ( SEHU); 7 F & 26 M, ditto, 21 Jun.–11 Jul. 1999, T. Murata leg., MT ( MU); 7 F, ditto, 12 Jul.–5 Aug. 1999 ( MU); 2 F & 1 M, ditto, 28 Aug.–19 Sep. 1999 ( MU); 1 M, Kagoshima Pref., Yakushima Is., Nagata, 9 Jun. 1973, K. Kusigemati leg. ( SEHU); 1 F & 1 M, ditto, 28 Jun. 2012, M. Ito leg. ( KPMNH); 1 M, Kagoshima Pref., Yakushima Is., Shiratani, 10 Jul.–8 Aug. 2000, T. Murata leg., MT ( MU); 3 F & 5 M, Kagoshima Pref., Yakushima Is., Aikodake, 25 Aug.–22 Sep. 2006, T. Yamauchi et al. leg., MT ( KPMNH); 9 M, ditto, 28 Jun.–29 Jul. 2007 ( KPMNH); 1 F, Kagoshima Pref., Yakushima Is., Kankake, 19–22 Jul. 2006, T. Yamauchi et al. leg., MT ( KPMNH); 2 F, ditto, 25 Aug.–23 Sep. 2006 ( KPMNH); 10 M, ditto, 28 Jun.–30 Jul. 2007 ( KPMNH); 3 F, Kagoshima Pref., Yakushima Is., Hanyama, 26 Sep.–24 Oct. 2006, T. Yamauchi et al. leg., MT ( KPMNH). RUSSIA: 1 F (det. by Kasparyan as L. nigra immaculata ), Przmorye, 30 Aug. 1986, Kotenko leg. ( ZISP). CHINA: 1 M (det. Sheng as L. nigricapitis ), Anfu County, Jiangxi Province, 230–260 m, 5 May 2010, standardized interception trap ( GSFPM); 1 F (det. Sheng as L. nigra immaculata ), same locality and collecting method, 31 Aug. 2010 ( GSFPM).

Description. Female (n = 57). Body length 7.8–10.2 mm, polished and covered with punctures and short silver setae.

Head 0.65–0.7 × as long as wide. Clypeus 1.7–1.8 × as broad as high, smooth except for dorsal part sparsely punctate, slightly convex in lateral view. Face 1.4–1.5 × as broad as high, punctate, slightly convex medially in lateral view. Length of malar space 0.9–1.0 × as long as basal mandibular width. POL 0.9–1.05 × as long as OD. OOL 0.75–0.85 × as long as OD. Antenna with 41–44 flagellomeres. FL I 7.0–8.15 × as long as maximum depth in lateral view and 2.1–2.45 × as long as FL II.

Mesosoma densely punctate. Pronotum without a large smooth area on median part of lateral aspect. Epomia absent ( Fig. 1 D ). Smooth area of mesoscutum not extended to anterior to the line between each tegula except for the postero-median part ( Fig. 1 G ). Scutellum largely smooth. Speculum with a large smooth area. Dorsal surface of propodeum punctate to rugose punctate. Fore wing length 5.5–6.7 mm. Areolet received vein 2m-cu slightly based of the outer angle or at near center ( Fig. 13 F ). Nervellus subvertical, intercepted slightly posterior to the middle ( Fig. 13 F ). Terminal tooth of fore and mid tarsal claws larger than other teeth ( Fig. 2 G ). Hind femur 5.0–5.35 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.25–4.5: 2.0: 1.4: 0.6: 0.9–0.95. Hind second tarsomere 6.65–6.7 × as long as maximum depth in lateral view. All trochantelli without an apical tooth on the outer side. Hind tarsal claws each with an accessary tooth ( Fig. 2 N ).

Metasoma. T I 4.3–4.6 × as long as maximum width, smooth with a few fine punctures. T II 1.8–2.05 × as long as maximum width, coriaceous with rather weak transverse striae ( Fig. 13 D ). T III to T V coriaceous with fine and sparse punctures. Ovipositor sheath 1.55–1.65 × as long as hind tibia.

Coloration ( Figs 8 A, B , 10 L , 11 G, 13 D, F). Body (excluding wings and legs) black. Clypeus except for dorsal part, mandible except for teeth, palpi and ventral surfaces of scape and pedicel and basal segments of flagellum yellowish brown to whitish yellow. Each posterior margin of T I to T III, T VII and subgenital plate narrowly tinged with reddish brown. Ovipositor reddish brown. Wings hyaline except for apical clouded area of fore wing. Veins and pterostigma blackish brown except for yellowish-brown wing base. Fore and mid legs except for coxae yellowish brown to dark yellowish brown. Fore and mid coxae yellow to yellowish brown. Hind leg blackish brown and partly tinged with dark reddish brown except for bases of TS II and TS III more or less tinged with whitish yellow.

Male (n = 78). Similar to female except for coloration ( Figs 8 C , 10 M , 13 B). Clypeus 1.5–1.6 × as broad as high. Length of malar space 0.9–1.05 × as long as basal mandibular width. POL 0.75–0.9 × as long as OD. OOL 0.5–0.6 × as long as OD. Antenna with 40–44 flagellomeres. Fore wing length 5.8–7.1 mm. Hind femur 5.2–6.0 × as long as maximum depth in lateral view. T I 5.8–6.25 × as long as maximum width. T II 2.9–3.2 × as long as maximum width. Head yellow except for median part of frons, vertex, occiput, dorsal part of gena, and mandibular teeth black. Antenna more or less darkened except ventral surfaces of scape, pedicel and basal segments of flagellum. Mesosoma yellow to reddish yellow. Mesoscutum black except for a subanterior transverse yellow band. Propodeum with a posterior black spot dorsally. Axillae and narrow transverse area of base of propodeum black. Apex of T I, apical part of T II, T IV to T VII yellowish brown to reddish brown. Base of T V usually tinged with yellowish brown to reddish brown. Wings hyaline, without apical clouded area. Fore and mid legs yellow to yellowish brown. Mid tarsus more or less darkened. Hind leg yellowish brown to reddish brown. Dorso-apical area of hind coxa, hind trochantellus, apical part of hind femur, base and apical part of hind tibia, TS I and TS V blackish brown to black. Hind tibia except for blackish area and hind TS II to IV (and also usually apex of TS I) whitish yellow.

Distribution. Japan (Hokkaido, Honshu, Miyakejima Is., Shikoku, Kyushu, Yakushima Is.). Outside Japan, this species has been recorded from China, Far East Russia, Korea, Philippines and India ( Yu et al. 2016).

Bionomics. Host unknown. Adults were collected in June, July, August, September, October and November. The author collected this species in Akiruno City, Tokyo, in a bamboo thicket along a riverbed.

Remarks. A record of male from Mt. Inao, Kagoshima Pref. ( Fukuda & Kusigemati 1986), may be this species. Choi et al. (2015) recorded this species from Japan without data. In this study, this is the first record of this species from Japan with specimen data. As mentioned above, the taxonomic position of this species in East Asia should be re-examined with the data from the female in India.

This species is apparently very similar to L. annularis , while two species can be clearly distinguished by the coloration of antenna and T I, the length of ovipositor sheath, the length of face in male, and the length of malar space in males.

Figures

FIGURE 1. Asian Leptobatopsis spp., females—A, B: head, frontal view; C, D: pronotum, lateral view; E–H: mesoscutum, dorsal view. A, E: L. annularis Kasparyan, 2007; B, D, G: L. nigricapitis Chandra & Gupta, 1977; C: L. nigra immaculata Momoi, 1971 (holotype); F: L. badia Momoi, 1970; H: L. yaima sp. nov. (holotype).

FIGURE 2. Japanese Leptobatopsis spp., females—A: hind trochanter and trochantellus, lateral view; B–H: mid tarsal claw of left leg, lateral view; I–O: hind tarsal claw of left leg, lateral view; P, Q; hind tarsal claw of left leg, ventro-lateral view; E–U: hind tarsus, anterior view.A, J, P: L. appendiculata Momoi, 1960; B, I: L. annularis Kasparyan, 2007; C, K, R: L. badia Momoi, 1970; D, L, S: L. indica (Cameron, 1897); E, M, T: L. koreana Lee & Kang, 2015; F, Q: L. lepida (Cameron, 1908); G, N: L. nigricapitis Chandra & Gupta, 1977; H, O, U: L. yaima sp. nov. (holotype).

FIGURE 8. Leptobatopsis nigricapitis Chandra & Gupta, 1977, females (A, B) and male (C)—A, C: lateral habitus; B: head, mesosoma and metasoma, dorso-lateral view.

FIGURE 10. Japanese Leptobatopsis spp., females (A, C, E, G, I, J, L, N) and males (B, D, F, H, K, M, O)—A–O: head, frontal view. A, B: L. annularis Kasparyan, 2007; C, D: L. appendiculata Momoi, 1960; E, F: L. badia Momoi, 1970; G, H: L. indica (Cameron, 1897); I: L. koreana Lee & Kang, 2015; J, K: L. lepida (Cameron, 1908); L, M: L. nigricapitis Chandra & Gupta, 1977; N, O: L. yaima sp. nov. (N: holotype; P: paratype).

FIGURE 13. Japanese Leptobatopsis spp., males (A, B) and females (C–F)—A, B: head and mesosoma, dorsal view; C, D: T II, dorso-lateral view; E, F: wings, dorsal view. A, C: L. annularis Kasparyan, 2007; B, D, F: L. nigricapitis Chandra & Gupta, 1977; E: L. appendiculata Momoi, 1960.