Leptobatopsis appendiculata Momoi, 1960

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 : 408-410

Leptobatopsis appendiculata Momoi, 1960

( Figs 2 A, J, P , 4 , 10 C, D , 11 B, 12 B, 13 E)

Leptobatopsis appendiculatus Momoi, 1960: 64 .

Materials examined. JAPAN: [Hokkaido] 1 F, Sapporo , 21 Jul. 1964. H. Takada leg. ( SEHU) ; 1 M, ditto, 24 Jul. 1964 ( SEHU) ; 1 F, ditto, 19 Jul. 1968, H. Torikura leg. ( SEHU) . [ Honshu ] 1 M , Saitama Pref., Yorii Town , 1 Jun. 2013, T. Nambu leg., MT in bamboo forest ( KPMNH) ; 4 M, ditto, 5 Jun. 2013 ( KPMNH) ; 12 M, ditto, 10 Jun. 2013 ( KPMNH) ; 1 F & 24 M, ditto, 15 Jun. 2013 ( KPMNH) ; 12 M, ditto, 20 Jun. 2013 ( KPMNH) ; 3 M, ditto, 25 Jun. 2013 ( KPMNH) ;1 F, Chiba Pref., Sakura City, Mutsuzaki , 20 Jun. 1973, H. Suda leg. ( KPMNH) ; 1 M, Chiba Pref., Shori City, Oritate , 20 Jun. 2006, H. Suda leg. ( KPMNH) ; 1 M, Chiba Pref., Kimitsu City, Godaibata , 25 Jun.–2 Jul. 1997, M. Nitta et al. leg., MT ( NARO) ; 1 M, Kanagawa Pref., Kamakura , 24 Jun. 2000, H. Nagase leg. ( KPMNH) ; 3 F, Kanagawa Pref., Yokohama City, Tsuduki-Ku, Edaminami , 25 Jun. 2008, K. Watanabe leg. ( KPMNH) ; 2 F & 2 M, Kanagawa Pref., Odawara City, Kuno , 13 Jun. 2014, K. Watanabe leg. ( KPMNH) ; 1 F & 1 M, Nagano Pref., Minamikiso Town, Kakizore Valley , 8 Jul. 2011, M. Ito leg. ( KPMNH) ; 1 M, Aichi Pref., Nagoya, Higashiyama Park , 11–20 Jun. 2001, M. Watanabe leg., MT ( MU) ; 9 M, Aichi Pref., Nagakute, Matukomi , 6–12 Jun. 2004, S. Kato leg. ( MU) ; 1 F, ditto, 5–10 Jul. 2004 ( MU) ; 1 F, Hyogo Pref., Awajisima Is., Mt. Ryuhouji , 24 Jun. 1992, S. Ohkusa leg. ( KPMNH) ; 1 F (holotype), Tottori Pref., Houki-daisen , 18 Jul. 1936, K. Egawa leg. ( SEHU) . [ Kyushu ] 1 M , Fukuoka Pref., Mt. Tachibana , 8 Jun. 1981, K. Konishi leg. ( NARO) .

Description. Female (n = 13). Body length 12.0–16.0 mm, polished and covered with punctures and silver setae.

Head 0.55 × as long as wide. Clypeus 1.8–1.9 × as broad as high, smooth except for dorsal part sparsely punctate, slightly convex in lateral view. Face 1.7–1.8 × as broad as high, punctate, slightly convex medially in lateral view. Frons largely smooth medially. Length of malar space 0.9–0.95 × as long as basal mandibular width. POL 1.3–1.4 × as long as OD. OOL 1.0–1.2 × as long as OD. Antenna with 50–52 flagellomeres. FL I 8.8–9.3 × as long as maximum depth in lateral view and 2.1–2.2 × as long as FL II.

Mesosoma densely punctate, elongate more than other Japanese species ( Fig. 12 B ). Epomia present ventrally. Mesoscutum without smooth area ( Fig. 11 B ). Speculum with a smooth area ( Fig. 12 B ). Dorsal surface of propodeum punctate to rugose punctate. Fore wing length 8.3–10.3 mm. Areolet received vein 2m-cu slightly based of the outer angle ( Fig. 13 E ). Nervellus subvertical, intercepted posterior to the middle ( Fig. 13 E ). Terminal tooth of fore and mid tarsal claws not larger than other teeth. Hind femur 6.1–6.25 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 3.8–4.0: 2.0: 1.1–1.2: 0.5: 0.7–0.8. Hind second tarsomere 10.0–13.3 × as long as maximum depth in lateral view. All trochantelli each with a sharp apical tooth on the outer side ( Fig. 2 A ). Hind tarsal claws each with an accessary tooth ( Fig. 2 P ).

Metasoma. T I 4.3–5.0 × as long as maximum width, smooth with fine and sparse punctures. T II 2.9–3.9 × as long as maximum width. T II to T V coriaceous with fine and sparse punctures. Ovipositor sheath 3.15–3.4 × as long as hind tibia.

Coloration ( Figs 4 , 10 C , 11 B, 12 B, 13 E). Body (excluding wings and legs) black. Clypeus except for dorsal margin, frontal orbit, malar space, mandible except for teeth, palpi, ventral surfaces of scape, pedicel and basal segments of flagellum, postero-dorsal corner of pronotum, propleuron, tegula, subtegular ridge, postero-dorsal corner of mesopleuron, each base of T I to T III, each narrow posterior margin of T II to T VII, base of S I yellow to yellowish brown. Membranous part of metasomal sternites and posterior margin of subgenital plate blackish brown. Ovipositor yellowish brown. Wings hyaline. Veins and pterostigma blackish brown except for yellowish-brown wing base. Fore and mid legs whitish yellow to yellowish brown, mid tarsus partly weakly darkened. Hind coxa black except for a baso-dorsal spot and apex yellow to whitish yellow. Hind trochanter and trochantellus yellow to whitish yellow except for dorsal part of trochanter and apical tooth of trochantellus darkened. Hind femur blackish brown except for base and apex narrowly tinged with yellow. Hind tibia whitish yellow to white basally, blackish brown apically. Hind tarsus white to whitish yellow except for base of first tarsomere and fifth tarsomere blackish brown. Yellowish posterior margin of T V to T VII sometimes indistinct. T III sometimes entirely tinged with yellow.

Male (n = 74). Similar to female. Length of malar space 0.7–0.8 × as long as basal mandibular width. POL 0.9–1.1 × as long as OD. OOL 0.7–0.8 × as long as OD. Antenna with 49–51 flagellomeres. FL I 9.1–10.3 × as long as maximum depth in lateral view and 2.05–2.1 × as long as FL II. Hind femur 6.3–6.5 × as long as maximum depth in lateral view. T I 7.0–7.6 × as long as maximum width. T II 7.8–8.7 × as long as maximum width. Clypeus entirely whitish yellow to yellow ( Fig. 10 D ). Facial orbit with a pair of yellow markings ( Fig. 10 D ). Mesoscutum with a pair of yellow markings.

Distribution. Japan (Hokkaido, Honshu, Awajishima Is. and Kyushu).

Bionomics. Host unknown. Adults were collected in June and July. Adult wasps were almost always collected around or inside of bamboo forest or bushes of bamboo grass thicket. It is often collected in mono-vegetated bamboo forest, suggesting that the host is related to bamboo.

Remarks. This is the first record of this species from Kyushu.

Figures

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 4. Leptobatopsis appendiculata Momoi, 1960, female, lateral habitus.

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 11. Japanese Leptobatopsis spp., females (A–H) and male (I)—A–I: mesoscutum, dorso-lateral view. A: L. annularis Kasparyan, 2007; B: L. appendiculata Momoi, 1960; C: L. badia Momoi, 1970; D: L. indica (Cameron, 1897); E: L. koreana Lee & Kang, 2015; F: L. lepida (Cameron, 1908); G: L. nigricapitis Chandra & Gupta, 1977; H, I: L. yaima sp. nov. (H: holotype; I: paratype).

FIGURE 12. Japanese Leptobatopsis spp., females (A–G) and male (H)—A–I: head and mesosoma, lateral view.A: L. annularis Kasparyan, 2007; B: L. appendiculata Momoi, 1960; C: L. badia Momoi, 1970; D: L. indica (Cameron, 1897); E: L. koreana Lee & Kang, 2015; F: L. lepida (Cameron, 1908); G, H: L. yaima sp. nov. (G: holotype; H: 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.