Leptobatopsis Ashmead, 1900

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 : 405-406

publication ID	https://doi.org/ 10.11646/zootaxa.5339.5.1
publication LSID	lsid:zoobank.org:pub:4610432A-3C9F-4996-B669-F8066CCE3F81
DOI	https://doi.org/10.5281/zenodo.8315190
persistent identifier	https://treatment.plazi.org/id/3B063D6F-9D59-A80B-53FF-FF1BFA73FC1E
treatment provided by	Plazi
scientific name	Leptobatopsis Ashmead, 1900
status

Treatment

Genus Leptobatopsis Ashmead, 1900 View in CoL View at ENA

Leptobatopsis Ashmead, 1900: 47 View in CoL . Type species: Leptobatopsis australiensis Ashmead, 1900 View in CoL (= indica Cameron, 1897 View in CoL ). Original designation.

Tanera Cameron, 1905: 141 . Type species: Tanera annulipes Cameron, 1900 (= indica Cameron, 1897 View in CoL ). 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 View FIGURE 2 ) and hind tarsal claws each with subapical outer tooth ( Figs 2 I–Q View FIGURE 2 ). 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 View in CoL View at ENA

1. Mesoscutum nearly entirely punctate ( Figs 11 B, D–F View FIGURE 11 ). Terminal tooth of fore and mid tarsal claws not larger than other teeth ( Figs 2 D–F View FIGURE 2 ). 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 View FIGURE 1 , 11 A, C, G, H, I View FIGURE 11 ). Terminal tooth of fore and mid tarsal claws larger than other teeth ( Figs 2 B, C, G, H View FIGURE 2 ). Body size relatively small, at most 12 mm. Female fore wing with a conspicuous clouded area (e.g., Fig. 13 F View FIGURE 13 )........................................................ 5 ( L. nigra View in CoL species group)

2. Antenna with a conspicuous white band ( Figs 7 A, B View FIGURE 7 ). Metapleuron with a large U- or C-shaped whitish yellow marking ( Figs 7 A, B View FIGURE 7 ). Scutellum and mesopleuron with a large whitish yellow marking ( Figs 7 A, B View FIGURE 7 , 11 E, F View FIGURE 11 , 12 E, F View FIGURE 12 ). Hind trochantellus without spine-like posterior projection on outer face.......................................................... 3

-. Antenna without a conspicuous white band ( Figs 4 View FIGURE 4 , 6 View FIGURE 6 ). Metapleuron entirely black or black with a small white marking, without a large C-shaped whitish yellow marking ( Figs 4 View FIGURE 4 , 6 View FIGURE 6 , 12 B, D View FIGURE 12 ). Scutellum with or without a large whitish yellow marking ( Fig. 11 B, D View FIGURE 11 ). Mesopleuron entirely black ( Figs 4 View FIGURE 4 , 6 View FIGURE 6 , 12 B, D View FIGURE 12 ). Hind trochantellus with ( Fig. 2 A View FIGURE 2 ) or without spine-like posterior projection on outer face................................................................................ 4

3. Hind tarsal claw with an accessary tooth ( Figs 2 M, T View FIGURE 2 ). Yellow marking of mesopleuron shorter than half length of mesopleuron ( Figs 7 A View FIGURE 7 , 12 E View FIGURE 12 ). Ovipositor sheath 1.5 × as long as hind tibia.................. Leptobatopsis koreana Lee & Kang, 2015

-. Hind tarsal claw simple ( Fig. 2 Q View FIGURE 2 ). Yellow marking of mesopleuron longer than half length of mesopleuron ( Figs 7 B View FIGURE 7 , 12 F View FIGURE 12 ). Ovipositor sheath 1.7–1.85 × as long as hind tibia.............................. Leptobatopsis lepida ( Cameron, 1908) View in CoL

4. Scutellum without a large whitish yellow marking ( Fig. 11 B View FIGURE 11 ). Hind coxa black with a dorsal white marking. All trochantelli each with a sharp apical tooth on the outer side ( Fig. 2 A View FIGURE 2 ). 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 View FIGURE 4 ), longer than 12 mm. Ovipositor almost as long as body length ( Fig. 4 View FIGURE 4 ), its sheath 3.1–3.4 × as long as hind tibia. Female wing without a conspicuous clouded area ( Fig. 4 View FIGURE 4 , 13 E View FIGURE 13 )................................................................. Leptobatopsis appendiculata Momoi, 1960 View in CoL

-. Scutellum with a large whitish yellow marking ( Fig. 11 D View FIGURE 11 ). Hind coxa entirely reddish brown ( Fig. 6 View FIGURE 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 View FIGURE 6 ), shorter than 11 mm. Ovipositor distinctly shorter than body length ( Fig. 6 View FIGURE 6 ), its sheath 1.65–1.7 × as long as hind tibia. Female wing with a conspicuous clouded area ( Fig. 6 View FIGURE 6 )......................................................................................... Leptobatopsis indica ( Cameron, 1897) View in CoL

5. Female............................................................................................. 6

-. Male............................................................................................... 9

6. Frons with a pair of large, triangle yellow spots ( Figs 10 E, N View FIGURE 10 ). Scutellum with a yellow marking ( Figs 11 C, H View FIGURE 11 ). Distribution: Ryukyu Islands (Oriental part of Japan).................................................................... 7

-. Frons entirely black or black with a pair of small white spots ( Figs 10 A, L View FIGURE 10 ). Scutellum black ( Figs 11 A, G View FIGURE 11 ). 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 View FIGURE 5 , 11 C View FIGURE 11 , 12 C View FIGURE 12 ). Hind coxa reddish yellow ( Fig. 5A View FIGURE 5 ). Distribution: North Ryukyu Islands (Amamioshima Is.)....... Leptobatopsis badia Momoi, 1970 View in CoL

-. Pronotum, mesopleuron (except for dorsal and ventral small yellow markings), metapleuron and propodeum entirely black ( Figs 9 A, B View FIGURE 9 , 11 H View FIGURE 11 , 12 G View FIGURE 12 ). T I yellowish brown basally, black apically ( Figs 9 A, B View FIGURE 9 ). Hind coxa yellowish brown ventrally, blackish brown dorsally ( Fig. 9 A View FIGURE 9 ). 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 View FIGURE 3 , 12 A View FIGURE 12 ). Antenna usually with a white band ( Fig. 3 A View FIGURE 3 ). Frons usually with a pair of white markings ( Fig. 10 A View FIGURE 10 ). Transverse striae of T II rather strong ( Fig. 13 C View FIGURE 13 ). Ovipositor sheath 1.4–1.5 × as long as hind tibia............................................................ Leptobatopsis annularis Kasparyan, 2007 View in CoL (= Leptobatopsis daedeokensis Lee & Kang, 2015 , syn. nov.)

-. Base of T I without a white area ( Figs. 8 A, B View FIGURE 8 ). Antenna without a white band ( Fig. 8 A View FIGURE 8 ). Frons without a pair of white markings ( Fig. 10 L View FIGURE 10 ). Transverse striae of T II rather weak ( Fig. 13 D View FIGURE 13 ). Ovipositor sheath 1.55–1.65 × as long as hind tibia..................................................................... Leptobatopsis nigricapitis Chandra & Gupta, 1977 View in CoL

9. Smooth area of mesoscutum extended to anterior to the line between each tegula ( Figs 1 F, H View FIGURE 1 ). 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 View FIGURE 1 ). 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 View FIGURE 5 ). T I entirely reddish brown ( Fig. 5 B View FIGURE 5 ). Distribution: North Ryukyu Islands (Amamioshima Is.)......................................................... Leptobatopsis badia Momoi, 1970 View in CoL

-. Mesoscutum entirely black except for a pair of antero-lateral yellow markings ( Fig. 12 H View FIGURE 12 ). Dorsal surface of propodeum entirely black ( Fig. 12 H View FIGURE 12 ). 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 View FIGURE 3 ). Face 1.4–1.5 × as long as width just below of antennal sockets. Malar space long ( Fig. 1 A View FIGURE 1 ), 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 View FIGURE 3 , 13 A View FIGURE 13 )....................................................................................................... Leptobatopsis annularis Kasparyan, 2007 View in CoL

-. Metasomal tergites yellow to whitish yellow except for posterior part of T II and apical segments darkened ( Fig. 8 C View FIGURE 8 ). Face 1.15–1.25 × as long as width just below of antennal sockets. Malar space short ( Fig. 1 B View FIGURE 1 ), 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 View FIGURE 13 ) (rarely entirely blackish brown but T II with an apical black area)............. Leptobatopsis nigricapitis Chandra & Gupta, 1977 View in CoL