Stilbops orientalis Kasparyan, 1984

Watanabe, Kyohei & Maeto, Kaoru, 2012, Taxonomic study of the genus Stilbops Förster from Japan (Hymenoptera: Ichneumonidae: Stilbopinae), Zootaxa 3456, pp. 51-81 : 77-78

publication ID	https://doi.org/ 10.5281/zenodo.211080
DOI	https://doi.org/10.5281/zenodo.6178668
persistent identifier	https://treatment.plazi.org/id/8079878D-FFB3-FF8F-4DAD-6EB7FCEC73E0
treatment provided by	Plazi
scientific name	Stilbops orientalis Kasparyan, 1984
status

Treatment

Stilbops orientalis Kasparyan, 1984 View in CoL

( Figs. 2 View FIGURE 2 J, 3 J, 4 J, 5 J, 6 J, 7 J, 8 J, 9 K, 10 J, 12 O, 13)

Stilbops orientalis Kasparyan, 1984: 142 View in CoL .

Diagnosis. Anterior tentorial pit small ( Fig. 2 View FIGURE 2 J), its margin not concealed by setae; lower end of occipital carina effaced ( Fig. 4 View FIGURE 4 J); lower part of gena with weak concavity in lateral view ( Fig. 3 View FIGURE 3 J); lower margin of pronotum not angulate ( Fig. 5 View FIGURE 5 J); lateral part of pronotum with large smooth area ( Fig. 5 View FIGURE 5 J); propodeal carinae completely present; propodeal areas largely smooth; lateral margin of T1 weakly convex basally; metasomal tergites reddishbrown or red except for TI; tegula black.

Description. Female (n=8). Body length 5.7–6.0 mm; length of fore wing 4.7–5.0 (Original description: 4.6) mm.

Head 0.5–0.6 times as long as wide; clypeus 0.6–0.7 times as long as wide, upper part narrowly punctate and shagreened, center part of apical half with longitudinal striae or shagreened, its margin convex to subtruncate in anterior view ( Fig. 2 View FIGURE 2 J); anterior tentorial pit small ( Fig. 2 View FIGURE 2 J), its margin not concealed by setae; face 0.6–0.7 times as long as wide, punctures below antennal socket longitudinally elongated; frons covered with punctures as face, with longitudinal smooth area medially; OOL 0.9–1.0 times as long as OD; POL 0.8 times as long as OD; lower end of occipital carina effaced ( Fig. 4 View FIGURE 4 J); GOI 0.4–0.5; lower part of gena with weak concavity in lateral view ( Fig. 3 View FIGURE 3 J); malar space 0.9–1.0 times as long as basal width of mandible; mandibular base flat. Antenna with 19–20 (Original description: 20) flagellomeres; flagellomere I 1.2 times as long as II, and terminal flagellomere 2.4–3.2 times as long as preceding one; sensilla placodea present on flagellomere III and following all flagellomeres.

Mesosoma ( Figs. 5 View FIGURE 5 J, 6 J, 7 J, 8 J): lower margin of pronotum not angulate ( Fig. 5 View FIGURE 5 J); upper end of epomia distant from upper margin of pronotum in lateral view ( Fig. 5 View FIGURE 5 J); lateral part of pronotum punctate except large smooth area on lower 0.7, smooth area partly covered with minute and sparse punctures ( Fig. 5 View FIGURE 5 J); mesoscutum with weak notaulus on anterior 0.3; smooth area around episternal scrobe large; upper end of epicnemial carina reaching lower 0.2–0.3 of pronotum; juxtacoxal carina partly present; all carinae of propodeum present, anterior part of lateromedian longitudinal carina coalescent ( Fig. 8 View FIGURE 8 J); all areas of propodeum smooth and covered with very fine, shallow punctures ( Fig. 8 View FIGURE 8 J).

Fore wing: Cu-a distant from Rs&M by 0.5–0.8 times length of Cu-a; ICI 0.7–0.8. Hind wing: NI 2.0–4.0; one or two basal hamuli, 5 or 6 distal hamuli.

Hind femur 5.0–5.2 times as long as maximum deep in lateral view; hind tibia 9.0 times as long as deep in lateral view; hind tarsomere ratio I; II; III; IV; V = 3.0; 1.2–1.3; 1.0; 0.6; 0.9–1.0.

Metasoma sparsely punctate; TI 1.2–1.3 (Original description: 1.35) times as long as maximum width, with median dorsal carina on anterior 0.6 (Original description: anterior 0.3), with distal depression, and lateral margin weakly convex basally ( Fig. 10 View FIGURE 10 J); TII and TIII with pair of slight round convexities; subgenital plate smooth, almost smooth. Ovipositor slightly upcurved in posterior 0.3; ovipositor sheath 0.5 (Original description: 0.5) times as long as hind tibia.

Coloration ( Figs. 6 View FIGURE 6 J, 7 J, 9 K, 12 O): body (excluding legs) black, except for: apex of mandible yellowish brown; yellow palpi; antenna brackish brown basally, remainder yellowish brown except for yellow of extreme apex; wing veins blackish-brown except for yellow of extreme wing base; stigma blackish-brown; TII and following tergites reddish-brown; sternites reddish-brown to brown except for membranous area yellow; ovipositor sheath blackish-brown except for brown apex; ovipositor yellowish-brown. Legs yellowish-brown, except for: coxae black except for apices of fore and mid coxa whitish-yellow to yellow; fore and mid trochanters and trochantelli whitish-yellow to yellow; hind femur and tibia blackish-brown.

Male. Additional specimens were not available. See Kasparyan (1999).

Specimens examined. (8Ƥ): [Hokkaido] 1Ƥ, Mt. Tarumae-san, 11–12. vii. 1998, K. Konishi leg., Malaise trap (NIAES); 3Ƥ, same locality and collector, 12–21. vii. 1998 (NIAES). [Honshu] 1Ƥ, Iwate Pref., Mt. Hayachine, 1000m alt., 11–19. vii. 1989, H. Makihara & M. Sharkey leg., Malaise trap (AEI); 2Ƥ, Ibaragi Pref., Mt. Tsukuba, 7–26. vi. 1989, M. Sharkey leg. (AEI); 1Ƥ, Shizuoka Pref., Izu city, Mt. Amagisan, 3. vi. 2007, H. Katahira leg. (NIAES); 1Ƥ, Fukui Pref., Ikeda town, Kouchi, 17. vi. 1981, H. Kurokawa leg. (NSMT).

Distribution. Japan (Hokkaido and Honshu) and Russia (Primorye Territories) ( Fig. 13 View FIGURE 13 ).

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