Netelia (Bessobates) comitor Tolkanitz

Konishi, Kazuhiko, 2014, A revision of the subgenus Bessobates of the genus Netelia from Japan (Hymenoptera, Ichneumonidae, Tryphoninae), Zootaxa 3755 (4), pp. 301-346 : 305-307

Netelia (Bessobates) comitor Tolkanitz

( Figs 1–5 , 13–15 )

Paniscus (Parabates) latungula: Uchida, 1934: 112 (in part).

Netelia (Bessobates) comitor Tolkanitz, 1974: 385 ; Tolkanitz, 1981a: 39; Tolkanitz, 1981b: 124; Kasparyan & Tolkanitz, 1999: 170.

♂. Head ( Figs. 1, 2 ) 1.7–1.8 times as wide as long; vertex in dorsal view evenly rounded; occiput and interocellar area polished and impunctate; vertex and gena weakly and finely punctate; geno-orbital index 2.7–3.2; frons impunctate and finely coriaceous, with a very weak median longitudinal groove; inner margins of eyes almost parallel; face 1.4–1.5 times as wide as long, sparsely punctate; supraclypeal suture distinct; clypeus 2.1–2.4 times as wide as long, rather more sparsely punctate than face, with apical margin truncate; antenna with 42–47 flagellomeres, 1st flagellomere about 1.4 times as long as 2nd, 2nd 2.6–2.8 times as long as wide.

Mesosoma ( Fig. 3 ): mesoscutum 1.1–1.3 times as long as wide; scutellum 1.2–1.3 times as long as distance between lateral carinae at its base, lateral carina fading out before middle of scutellum; propodeum without transverse striae, sparsely punctate, with sublateral crest absent and sometimes represented by rounded swelling.

Fore tibial spur about 0.5 times as long as the 1st tarsomere, which is 8.2–10.9 times as long as wide; fore tarsal claw with 17–22 pectines; hind tarsal claw with 10–15 pectines.

Fore wing ( Fig. 4 ) 2.6–2.9 times as long as wide; areolet petiolate above; cu-a varying from basad Rs&M by cu-a width to distad Rs+M by 1/7 of cu-a length, strongly curved and reclivous; hind wing ( Fig. 5 ) with 6–9 distal hamuli, nervellar index 0.6–0.7.

Metasoma with 1st tergum 2.4–2.9 times as long as apical width and 1.5–1.6 times as long as 2nd; subgenital plate ( Fig. 13 ) short with apical margin weakly convex; paramere ( Fig. 14 ) short, with dorsal margin relatively long and emarginate medially and ventral margin strongly convex near pad; digitus with dorso-apical corner rounded off and ventro-apical corner with teeth; median portion of membrane of median surface with long strip of minutely papillate cuticle; pad large and ovoid, situated near ventral margin; inner subapical sclerotized plate large, produced ventro-anteriorly to form an overhang; penis valve ( Fig. 15 ) strongly curved ventrally; basal apodeme of aedeagus strongly curved dorsally. Ovipositor as long as apical depth of metasoma.

Head yellow; occiput slightly brownish; antenna brownish to reddish yellow. Mesosoma brownish yellow; lateral portion of pronotum, lateral marginal area of mesoscutum, lateral portion of scutellum, markings on mesopleuron and ventral half of metapleuron yellow. Legs brownish yellow; fore coxa and anterior half of mid coxa yellow; hind tarsus whitish yellow. Wings hyaline; vein C and pterostigma of fore wing brownish yellow, other veins brown. Metasoma brownish yellow.

♀. Unknown.

Length of fore wing: 8.7–10.0 mm.

Specimens examined. [Hokkaido] 1♂, Mt. Syari (700 m), 5. vii. 1990 (N. Kuhara), NIAES; 1♂, Akanko, Kushiro, 19. vii. 1979 (K. Ôhara, at light), NIAES; 1♂ (11. viii. 1970, T. Kumata, SEHU) & 1♂ (26. vii. 1985, Kusumoto, SEHU), Ginsendai, Taisetsu; 1♂ (K. Maeto) & 1♂ (H. Takemoto), Nukabira, Tokachi, 30. vi. 1980, NIAES; 1♂, Berabonai, Asyoro, 29. vii. 1967 (M. Honda), MNHA; 4♂, Nissho-tôge, Hidaka, 31. vii–1. viii. 1986 (S. Nomura, at light), NIAES; 2♂ (12–21. vii. 1998) & 2♂ (21–26. vii. 1998), Mt. Tarumaesan, (K. Konishi, Malaise trap), NIAES; 1♂ (12. vii. 1963, A. Nakanishi, MNHA) & 1♂ (19. viii. 1964, S. Suzuki, KUIC), Soranuma, Sapporo; 1♂, Sapporo, 7. ix. 1931 (Matsumura), recorded as Paniscus (Parabates) latungula by Uchida (1934a), SEHU. [Honshu] Aomori Pref.: 1♂, Sakaimatsu, Kuroishi, 8. x. 1992 (T. Ichita), NIAES. Iwate Pref.: 2♂, Kawaranobo, Mt. Hayachine, 15–16. vii. 1985 (K. Konishi et al., at light), NIAES. Yamagata Pref.: 1♂, Mt. Funagata, 2. viii. 1961 (S. Katsuya), NIAES. Fukushima Pref.: 1♂, Yokomuki, Adatara Mts., 9. vii. 1985 (K. Konishi), NIAES; 1♂, Akayu-onsen, 3. viii. 1996 (S. Sakurai, at light), NIAES. Ishikawa Pref.: 1♂, Mt. Hakusan (1300 – 1500 m), 23. vi. 1994 (I. Togashi), NIAES. Tochigi Pref.: 1♂, Yumoto, Okukine, 8. vii. 1980 (K. Konishi, at light), NIAES. Saitama Pref.: 1♂, Lake Chichibu, 4–5. vii. 1984 (H. Hasegawa), NIAES. Tokyo: 1♂, Yazawa, Hinohara, 13. vii. 1988 (H. Nagaoka, at light), NIAES; 6♂, Mt. Syotosan, Hinohara, 14. vii. 1988 (S. Yamada et al., at light), NIAES. Nagano Pref.: 1♂, Sugadaira, 20. viii. 1982 (E. Nishida), NIAES; 4♂, Mt. Norikuradake, 24– 25. vii. 1979 (K. Ôhara, at light), KUIC; 1♂, Norikura-kôgen, 8. vii. 1982 (S. Yoshimatsu et al., at light), NIAES. Yamanashi Pref.: 1♂, Kanayama, 6. vii. 1975 (J. Emoto, at light), MNHA; 1♂, Kiyosato, 19. vii. 1984 (S. Nomura et al., at light), NIAES; 1♂, Daibosatsutoge, 12. vii. 1969 (H. Takizawa), KUIC. Nara Pref.: 1♂, Odaigahara, 25. vi. 1984 (K. Konishi, at light), NIAES. Hyogo Pref.: 2♂ (17. vii. 1962, A. Nakanishi, MNHA) & 1♂ (12. viii. 1982, S. Yoshimatsu et al., at light, NIAES), Mt. Oginosen; 1♂, Mt. Hyonosen, 21–22. viii. 1978 (K. Maeto), MNHA. Tottori Pref.: 1♂, Mt. Daisen, 1. vii. 1975 (Y. Yoneda), MNHA. Hiroshima Pref.: 3♂, Mt. Garyuzan, 27. vi. 1987 (S. Nomura), NIAES; 5♂, Mt. Azumayama, 23. ix. 1984 (K. Konishi et al., at light), NIAES. [Shikoku] Tokushima Pref.: 1♂, Mt. Takashiroyama, 15. viii. 1986 (K. Konishi et al., at light), TKPM. Kochi Pref.: 1♂, Tengu-kôgen, Higashitsuno, 4. viii. 2000, (I. Yamashita, at light), NIAES. [Kyushu] Oita Pref.: 1♂ (25. viii. 1984, K. Konishi) & 1♂ (17. viii. 1985, R. Noda et al.), Mt. Kurodake, Mts Kuju, (at light), NIAES. Kumamoto Pref.: 1♂ (8. vii. 1978, at light) & 2♂ (9–11. vii. 1978), Mt. Shiratoriyama, (K. Maeto), MNHA.

Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu), Russia (Primorye, Sakhalin).

Remarks. This species is considered to be closely related to gansuana , nodai , pallescens , virgata , yakushimensis and yamatoensis in having the overhang, the strip of minutely papillate cuticle and the membranous pad on the mesal surface of the paramere and the teeth on the ventro-apical corner of digitus. Thus, these seven species belong to the virgata group.

This is the first record of comitor from Japan.

Figures

FIGURES 1 – 5. Male of Netelia (Bessobates) comitor. 1, Head in dorsal view; 2, head in frontal view; 3, mesosoma in dorsal view; 4, fore wing; 5, hind wing.

FIGURES 13 – 18. Male subgenital plate and genitalia of Netelia (Bessobates) spp. 13 – 15, Netelia (Bessobates) comitor; 16 – 18, N. (B.) cristata; 13, 16, subgenital plate; 14, 17, paramere in mesal view; 15, 18, aedeagus in lateral view. a, Pad; b, brace; c, overhang; d, papillate strip.