Leptobatopsis Ashmead 1900
Creators: name: Watanabe, Kyohei
name: Ito, Masato
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Leptobatopsis

description: Genus Leptobatopsis Ashmead, 1900
Leptobatopsis Ashmead, 1900: 47. Type species: Leptobatopsis australiensis Ashmead, 1900 (= indica Cameron, 1897). Original designation.
Tanera Cameron, 1905: 141. Type species: Tanera annulipes Cameron, 1900 (= indica Cameron, 1897). Monotypic.
Sauterellus Enderlein, 1912: 112. Type species: Sauterellus planiscutellatus Enderlein, 1912. Original designation.
Megacremastus Meyer, 1932: 31. Type species: Megacremastus mongolicus Meyer, 1932. Monotypic.
Diagnosis. See Townes (1970) and Chandra & Gupta (1977). In Eastern Palearctic genera of Atrophini, this genus can be easily separated from other genera by the combination of following character states: occipital carina broadly absent dorsally; hind margin of metasternum with a pair of long teeth; propodeum without carinae, with elongate spiracle; areolet present; T I slender, without glymma; spiracle of T I situated at or behind middle of the segment.
Distribution. Eastern Palaearctic, Oriental, Australasian, Nearctic and Neotropical regions (Yu et al. 2016).
Remarks. All Japanese species have fore and mid tarsal claws pectinate (Figs 2 B–H) and hind tarsal claws each with subapical outer tooth (Figs 2 I–Q). These character states may be a generic character of this genus. Japanese species can be distinguished by the following key.
Key to Japanese species of the genus Leptobatopsis
1. Mesoscutum nearly entirely punctate (Figs 11 B, D–F). Terminal tooth of fore and mid tarsal claws not larger than other teeth (Figs 2 D–F). Body size various, sometimes more than 13 mm. Female fore wing with or without a conspicuous clouded area ................................................................................................... 2
-. Mesoscutum with a large smooth area posteriorly (Figs 1 E–H, 11 A, C, G, H, I). Terminal tooth of fore and mid tarsal claws larger than other teeth (Figs 2 B, C, G, H). Body size relatively small, at most 12 mm. Female fore wing with a conspicuous clouded area (e.g., Fig. 13 F)........................................................ 5 (L. nigra species group)
2. Antenna with a conspicuous white band (Figs 7 A, B). Metapleuron with a large U- or C-shaped whitish yellow marking (Figs 7 A, B). Scutellum and mesopleuron with a large whitish yellow marking (Figs 7 A, B, 11 E, F, 12 E, F). Hind trochantellus without spine-like posterior projection on outer face.......................................................... 3
-. Antenna without a conspicuous white band (Figs 4, 6). Metapleuron entirely black or black with a small white marking, without a large C-shaped whitish yellow marking (Figs 4, 6, 12 B, D). Scutellum with or without a large whitish yellow marking (Fig. 11 B, D). Mesopleuron entirely black (Figs 4, 6, 12 B, D). Hind trochantellus with (Fig. 2 A) or without spine-like posterior projection on outer face................................................................................ 4
3. Hind tarsal claw with an accessary tooth (Figs 2 M, T). Yellow marking of mesopleuron shorter than half length of mesopleuron (Figs 7 A, 12 E). Ovipositor sheath 1.5 × as long as hind tibia.................. Leptobatopsis koreana Lee & Kang, 2015
-. Hind tarsal claw simple (Fig. 2 Q). Yellow marking of mesopleuron longer than half length of mesopleuron (Figs 7 B, 12 F). Ovipositor sheath 1.7–1.85 × as long as hind tibia.............................. Leptobatopsis lepida (Cameron, 1908)
4. Scutellum without a large whitish yellow marking (Fig. 11 B). Hind coxa black with a dorsal white marking. All trochantelli each with a sharp apical tooth on the outer side (Fig. 2 A). T I 4.3 –5.0 ×as long as maximum width. T II 2.9 – 3.9 × as long as maximum width. Flagellum with 50–52 segments. Body very slender (Fig. 4), longer than 12 mm. Ovipositor almost as long as body length (Fig. 4), its sheath 3.1–3.4 × as long as hind tibia. Female wing without a conspicuous clouded area (Fig. 4, 13 E)................................................................. Leptobatopsis appendiculata Momoi, 1960
-. Scutellum with a large whitish yellow marking (Fig. 11 D). Hind coxa entirely reddish brown (Fig. 6). All trochantelli without an apical tooth on the outer side. T I 3.1–3.2 × as long as maximum width. T II 1.25–1.45 × as long as maximum width. Flagellum with 36–38 segments. Body slender (Fig. 6), shorter than 11 mm. Ovipositor distinctly shorter than body length (Fig. 6), its sheath 1.65–1.7 × as long as hind tibia. Female wing with a conspicuous clouded area (Fig. 6)......................................................................................... Leptobatopsis indica (Cameron, 1897)
5. Female............................................................................................. 6
-. Male............................................................................................... 9
6. Frons with a pair of large, triangle yellow spots (Figs 10 E, N). Scutellum with a yellow marking (Figs 11 C, H). Distribution: Ryukyu Islands (Oriental part of Japan).................................................................... 7
-. Frons entirely black or black with a pair of small white spots (Figs 10 A, L). Scutellum black (Figs 11 A, G). Distribution: Japanese mainlands and north Ryukyu Islands (Palearctic part of Japan).......................................... 8
7. Pronotum, mesopleuron, metapleuron, propodeum and T I entirely reddish yellow to red (Figs 5 A, 11 C, 12 C). Hind coxa reddish yellow (Fig. 5A). Distribution: North Ryukyu Islands (Amamioshima Is.)....... Leptobatopsis badia Momoi, 1970
-. Pronotum, mesopleuron (except for dorsal and ventral small yellow markings), metapleuron and propodeum entirely black (Figs 9 A, B, 11 H, 12 G). T I yellowish brown basally, black apically (Figs 9 A, B). Hind coxa yellowish brown ventrally, blackish brown dorsally (Fig. 9 A). Distribution: South Ryukyu Islands (Ishigakijima Is. and Iriomotejima Is.)......................................................................................... Leptobatopsis yaima sp. nov.
8. Base of T I with a conspicuous white area (Figs 3 A, B, 12 A). Antenna usually with a white band (Fig. 3 A). Frons usually with a pair of white markings (Fig. 10 A). Transverse striae of T II rather strong (Fig. 13 C). Ovipositor sheath 1.4–1.5 × as long as hind tibia............................................................ Leptobatopsis annularis Kasparyan, 2007 (= Leptobatopsis daedeokensis Lee & Kang, 2015, syn. nov.)
-. Base of T I without a white area (Figs. 8 A, B). Antenna without a white band (Fig. 8 A). Frons without a pair of white markings (Fig. 10 L). Transverse striae of T II rather weak (Fig. 13 D). Ovipositor sheath 1.55–1.65 × as long as hind tibia..................................................................... Leptobatopsis nigricapitis Chandra & Gupta, 1977
9. Smooth area of mesoscutum extended to anterior to the line between each tegula (Figs 1 F, H). Distribution: Oriental part of Japan (Ryukyu Islands)............................................................................... 10
-. Smooth area of mesoscutum extended to anterior to the line between each tegula except for the postero-median part (Figs 1 E, G). Distribution: Palearctic part of Japan (Hokkaido to Yakushima Island)....................................... 11
10. Mesoscutum black to blackish brown except for an anterior transverse yellow marking and reddish brown area. Dorsal surface of propodeum entirely reddish brown (Fig. 5 B). T I entirely reddish brown (Fig. 5 B). Distribution: North Ryukyu Islands (Amamioshima Is.)......................................................... Leptobatopsis badia Momoi, 1970
-. Mesoscutum entirely black except for a pair of antero-lateral yellow markings (Fig. 12 H). Dorsal surface of propodeum entirely black (Fig. 12 H). T I yellow basally, black apically. Distribution: South Ryukyu Islands (Ishigakijima Is. and Iriomotejima Is.)........................................................................... Leptobatopsis yaima sp. nov.
11. Metasomal tergites yellow to whitish yellow except for apical segments darkened (Fig. 3 C). Face 1.4–1.5 × as long as width just below of antennal sockets. Malar space long (Fig. 1 A), 1.2–1.3 × as long as maximum width. TS I 2.0 × as long as TS II. Dorsal surface of propodeum entirely or largely blackish brown (Figs 3 C, 13 A)....................................................................................................... Leptobatopsis annularis Kasparyan, 2007
-. Metasomal tergites yellow to whitish yellow except for posterior part of T II and apical segments darkened (Fig. 8 C). Face 1.15–1.25 × as long as width just below of antennal sockets. Malar space short (Fig. 1 B), 0.95–1.05 × as long as maximum width. TS I 2.15–2.3 × as long as TS II. Dorsal surface of propodeum usually yellow anteriorly or entirely (Fig. 13 B) (rarely entirely blackish brown but T II with an apical black area)............. Leptobatopsis nigricapitis Chandra & Gupta, 1977
description: Published as part of Watanabe, Kyohei & Ito, Masato, 2023, Revision of the genus Leptobatopsis Ashmead, 1900 (Hymenoptera, Ichneumonidae, Banchinae) from Japan, with some taxonomic notes of Asian species, pp. 401-426 in Zootaxa 5339 (5) on pages 405-406, DOI: 10.11646/zootaxa.5339.5.1, http://zenodo.org/record/8309300