Netelia (Bessobates) nanaki Kaur & Jonathan

Konishi, Kazuhiko, 2014, A revision of the subgenus Bessobates of the genus Netelia from Japan (Hymenoptera, Ichneumonidae, Tryphoninae), Zootaxa 3755 (4), pp. 301-346 : 324

Netelia (Bessobates) nanaki Kaur & Jonathan

( Figs 58–62 , 66–68 )

Netelia (Bessobates) nanaki Kaur & Jonathan, 1979: 94 .

♂. Head ( Figs 58, 59 ) about 1.9 times as wide as long; vertex in dorsal view evenly rounded; occiput and interocellar area impunctate and polished; vertex in dorsal view moderately convex; vertex and gena finely and closely punctate; geno-orbital index 2.4–3.1; frons impunctate and finely coriaceous, without median longitudinal groove; face 1.3–1.5 times as wide as long, strongly and sparsely punctate; supraclypeal suture distinct; clypeus 1.9–2.2 times as wide as long, rather more sparsely punctate than face, with apical margin truncate; antenna with 45–52 flagellomeres; 1st flagellomere 1.5–1.6 times as long as 2nd, which is 2.6–3.0 times as long as wide.

Mesosoma ( Fig. 60 ): mesoscutum 1.1–1.3 times as long as wide; scutellum 1.4–1.6 times as long as distance between lateral carinae at its base, lateral carina fading out beyond middle of scutellum; basal 2/3 of propodeum trans-striate, with sublateral propodeal crest absent and represented by apophyses.

Fore tibial spur 0.4–0.6 times as long as 1st tarsomere, which is 10.4–11.6 times as long as wide; fore tarsal claw with 19–34 pectines; hind tarsal claw with 21–26 pectines.

Fore wing ( Fig. 61 ) with areolet petiolate above; cu-a opposite or distad Rs&M by 1/8–1/5 of cu-a length, weakly curved or almost straight, vertical or slightly reclivous; hind wing ( Fig. 62 ) with 6–8 distal hamuli; nervellar index 0.4–0.6.

Metasoma with 1st tergum 2.7–3.0 times as long as apical width and 1.4–1.5 times as long as 2nd; subgenital plate ( Fig. 66 ) short with apical margin moderately convex; paramere ( Fig. 67 ) tapered toward rounded apex; hairs on lamina volsellaris strong and sparse; digitus rounded on dorso-apical corner, ventro-apical corner with 2 teeth; membrane of median surface without papillae; pad moderately large, produced anteriorly; median subapical sclerotized plate weakly produced ventro-anteriorly to form an overhang; penis valve ( Fig. 68 ) slightly curved ventrally; basal apodeme of aedeagus strongly curved dorsally.

Head yellow; occiput reddish- to brownish-yellow; antenna reddish-yellow. Mesosoma reddish-yellow; mesoscutum with brown to blackish-brown stripes on each of median and lateral lobes; mesosternum brown to blackish-brown; mesopleuron medially and dorsal portion of propodeum slightly brownish. Legs reddish-yellow; hind tarsus whitish-yellow. Wings hyaline; vein C and pterostigma of fore wing pale brownish-yellow, other veins brown. Metasoma reddish-yellow to reddish-brown.

Length of fore wing: 10.5–14.9 mm.

♀. Not examined.

Specimens examined. [Honshu] Iwate Pref.: 3♂, Mt. Hayachine, 16–17. vii. 1985 (K. Konishi et al., at light), NIAES. Fukushima Pref.: 1♂, Mt. Aizukomagatake, 6. ix. 1987 (S. Saito, at light), NIAES; 1♂, Mt. Tashiroyama, Tateiwa, 29. viii. 1992 (M. Yoshida, at light), NIAES. Tochigi Pref.: 1♂, Okukinu, 23. viii. 1986 (S. Yoshimatsu, at light), NIAES; 1♂, Odashirogahara, Okunikko, 19. vii. 1980 (K. Konishi, at light), NIAES. Gunma Pref.: 1♂, Ozegahara, 1. x. 1972 (M. Nagai), NIAES. Nagano Pref.: 1♂, Mt. Norikura-dake, 24. vii. 1979 (K. Ôhara), KUIC; 1♂, Sugadaira, 18. viii. 1970 (A. Miyata, at light), NIAES. Yamanashi Pref.: 1♂, Mt. Kanayama, 24. vi. 1975 (J. Emoto, at light), MNHA; 2♂, Daibosatsu-tôge, 12. vii. 1960 (H. Takizawa), KUIC. Nara Pref.: 1♂, Odaigahara, 13–14. vii. 1983 (S, Ito), NIAES. [Shikoku] Tokushima Pref.: 1♂, Mt. Tsurugi-san (1350 m), 17. ix. 1986 (M. T. Chûjô et al., at light), TKPM. Kochi Pref.: 1♂ (4. viii. 2000) & 1♂ (14. viii. 2000), Tengu-kôgen, Higashitsuno, (I. Yamashita, at light), NIAES; 1♂, Teragawa, Hongawa, 1. vii. 1995 (K. Konishi, at light), NIAES. [Kyushu] Kagoshima Pref.: 1♂, Mt. Kirishima, 25. v. 1966 (K. Kusigemati), KUIC.

Distribution. Japan (Honshu, Shikoku, Kyushu), India.

Remarks. This species belongs to the virgata group ( Kaur & Jonathan, 1979). This is the first record of nanaki from Japan.

Figures

FIGURES 58 – 62. Male of Netelia (Bessobates) nanaki. 58, Head in dorsal view; 59, head in frontal view; 60, mesosoma in dorsal view; 61, fore wing; 62, hind wing.

FIGURES 63 – 68. Male subgenital plate and genitalia of Netelia (Bessobates) spp. 63 – 65, Netelia (Bessobates) longipad; 66 – 68, N. (B.) nanaki; 63, 66, subgenital plate; 64, 67, paramere in mesal view; 65, 68, aedeagus in lateral view.