Spilopteron, Townes, 1960 in Townes & Townes, 1960

Ito, Masato & Maeto, Kaoru, 2017, Revision of the genus Spilopteron Townes, 1965 (Hymenoptera: Ichneumonidae: Acaenitinae) from Japan, European Journal of Taxonomy 356, pp. 1-33 : 30-31

publication ID	https://doi.org/ 10.5852/ejt.2017.356
publication LSID	lsid:zoobank.org:pub:A7ED0BAC-2637-433D-9BD2-8A9E2C59B2CA
DOI	https://doi.org/10.5281/zenodo.3851941
persistent identifier	https://treatment.plazi.org/id/3D6F7173-5360-3E0C-1AC2-4885FAB1FD66
treatment provided by	Carolina
scientific name	Spilopteron
status

Treatment

Key to the Japanese species of Spilopteron View in CoL View at ENA

1. Hind femur with a distinct convexity ventrally; S1 with a distinct sharp projection basally (see Ito et al. 2012). Ovipositor sheath long (2.7–3.0 times as long as hind tibia) .................................... .................................................................................................................... S. mucronatus Lee, 2008

– Hind femur without a convexity ventrally; S1 without a sharp projection basally. Ovipositor sheath short to long (less than 2.6 times as long as hind tibia) .................................................................... 2

2. Postscutellum roundly convex in lateral view ( Fig. 5b, d, g View Fig , j–k). Body with yellow markings or entirely reddish yellow ( Fig. 5b, d View Fig ); males never with a white band on antennal flagellum ( Fig. 1h View Fig ); body relatively large (10–17 mm) .................................................................................................... 3

– Postscutellum flat in lateral view ( Fig. 5a, c, e, f View Fig , h–i). Body entirely black or with yellow markings ( Fig. 5a, c View Fig ); males sometimes with a white band on antennal flagellum ( Fig. 1b View Fig ); body relatively small (6–13 mm) ............................................................................................................................... 6

3. Body entirely reddish yellow ( Fig. 5d View Fig ); fore wing with only an infuscate marking apically ( Fig. 4d View Fig ) ..................................................................................................... S. luteum ( Uchida, 1934) View in CoL

– Body at least with black parts ( Fig. 5b, k View Fig ); fore wing with one or two distinct dark markings ( Fig. 4b, k View Fig ) ........................................................................................................................................ 4

4. Depression between eye and antennal socket absent ( Fig. 2 View Fig j–k); clypeus with three weak projections ( Fig. 2 View Fig j–k). Body black with yellow markings or yellow with black markings ( Fig. 5 View Fig j–k); fore wing sometimes with a black spot below the pterostigma ( Fig. 4k View Fig ) ................ S. tosaense ( Uchida, 1934) View in CoL

– Depression between eye and antennal socket present ( Fig. 2b, g View Fig ); clypeus with two strong lateral projections ( Fig. 2b, g View Fig ). Body black with yellow markings ( Fig. 5b, g View Fig ); fore wing never with a black spot below the pterostigma ( Fig. 4b, g View Fig ) ............................................................................................ 5

5. Apical black marking of fore wing extending downwards ( Fig. 4g View Fig ); T1 slender (3.5–4.3 times as long as wide); ovipositor sheath long (2.3–2.6 times as long as hind tibia) ....................................... ........................................................................................................................ S. oblongulum sp. nov.

– Apical black marking of fore wing rounded, not extending downwards ( Fig. 4b View Fig ); T1 broad (2.2–3.3 times as long as wide); ovipositor sheath short (1.8 times as long as hind tibia) ..................................................................................................... S. apicale ( Matsumura, 1912) View in CoL

6. Fore wing with only an infuscate apical portion ( Fig. 4c, h View Fig ) ............................................................ 7

– Fore wing with a distinct black marking apically ( Fig. 4a, f, i View Fig ) ....................................................... 8

7. Area superomedia of propodeum rounded ( Fig. 6c View Fig ); ovipositor sheath short (1.9 times as long as hind tibia) ( Fig. 1c View Fig ). Antennal flagellum with a white band in female and male ( Fig. 1d View Fig ) ........................................................................................................ S. brachyurum sp. nov.

– Area superomedia of propodeum squared ( Fig. 6h View Fig ); ovipositor sheath long (2.0–2.3 times as long as hind tibia). Antennal flagellum with a white band in female but without it in male ( Fig. 1f, j View Fig ) ................................................................................................... S. pseudonigrum sp. nov.

8. Malar space long (length of malar space 1.3–1.4 times as long as basal mandibular width); apex of metasoma yellowish white ( Fig. 1 View Fig a–b) ............................................................. S. albiventre sp. nov.

– Malar space short (length of malar space 0.9–1.2 times as long as basal mandibular width); apex of metasoma black ( Fig. 1 View Fig e–f) .............................................................................................................. 8

9. Apical black marking of fore wing rounded, not extending downwards ( Fig. 1i View Fig ); apical margin of clypeus turned up in lateral view. Antennal flagellum with a white band in female and male ................................................................................................... S. pyrrhonae Kusigemati, 1981 View in CoL

– Apical black marking of fore wing extending downwards ( Fig. 1f View Fig ); apical margin of clypeus flattened. Antennal flagellum with a white band in female but without it in male ( Fig. 1f View Fig ) .............................. ................................................................................................................................ S. nigrum sp. nov.