Netelia (Bessobates) latungula (Thomson)

Konishi, Kazuhiko, 2014, A revision of the subgenus Bessobates of the genus Netelia from Japan (Hymenoptera, Ichneumonidae, Tryphoninae), Zootaxa 3755 (4), pp. 301-346 : 319-322

Netelia (Bessobates) latungula (Thomson)

( Figs 42–46 , 50–52 )

Parabates latungula Thomson, 1888: 1196 ; Dalla Torre, 1901: 76.

Parabatus latungula: Uchida, 1928: 197 ; Meyer, 1930: 178; Meyer, 1935: 353; Roman, 1936: 26.

Paniscus (Parabatus) latungula: Kokujev, 1899: 136 .

Paniscus (Parabates) latungula: Uchida, 1934: 112 ; Uchida, 1935: 122.

Netelia (Parabatus) latungula: Townes, 1938: 219 .

Netelia (Bessobates) latungula: Townes, Momoi & Townes, 1965: 98 ; Tolkanitz, 1974: 388; Delrio, 1975: 65; Tolkanitz, 1981a: 38; Tolkanitz, 1981b: 124; Kasparyan & Tolkanitz, 1999: 172.

♂. Head ( Figs 42, 43 ) 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 finely and weakly punctate; geno-orbital index 2.3–2.8; frons impunctate and finely coriaceous, without a median longitudinal groove or with a very weak groove; inner margins of eyes convergent ventrally; face 1.4–1.6 times as wide as long, strongly punctate; supraclypeal suture weak; clypeus 2.1–2.5 times as wide as long, rather more sparsely punctate than face, with apical margin truncate; antenna with 41–47 flagellomeres, 1st flagellomere 1.4–1.5 times as long as 2nd, 2nd 2.4–2.8 times as long as wide.

Mesosoma ( Fig. 44 ): mesoscutum 1.0–1.2 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 at about basal 1/3 of scutellum; propodeum with faint trans-striae on median portion or without trans-striae in some specimens, with subapical crest absent and represented by rounded swelling.

Fore tibial spur 0.4–0.5 times as long as 1st tarsomere, which is 8.9–9.2 times as long as wide, fore tarsal claw with 19–23 pectines; hind tarsal claw with 14–16 pectines.

Fore wing ( Fig. 45 ) with areolet petiolate above; cu-a varying from basad Rs&M by 1/6 of cu-a length to distad Rs&M by 1/8 of cu-a length, slightly curved or straight, vertical or slightly reclivous; hind wing ( Fig. 46 ) with 5–9 distal hamuli; nervellar index 0.3–0.5.

Metasoma with 1st tergum 2.1–2.6 times as long as apical width and 1.5–1.7 times as long as 2nd; male subgenital plate ( Fig. 50 ) short with apical margin slightly convex; paramere ( Fig. 51 ) subelliptic, ventral and dorsal parts of apical margin slightly emarginate; digitus with dorso-apical corner rounded off and with ventroapical corner with 2–3 teeth; membrane of median surface without papillae; pad large and subtriangular, situated at apical 1/3 of paramere; median subapical sclerotized plate not produced to form an overhang; penis valve ( Fig. 52 ) slightly broadened toward apex and weakly curved; basal apodeme of aedeagus strongly curved; ovipositor as long as apical depth of metasoma.

Head yellow; occiput brownish-yellow; antenna reddish-yellow. Mesosoma yellow to brownish-yellow; in some specimens, mesoscutum with brownish-yellow to brown stripes on each of median and lateral lobes; scutellum and dorsal portion of propodeum brownish. Wings hyaline; vein C and pterostigma of fore wing brownish-yellow; hind tarsus whitish-yellow. Metasoma brownish-yellow to reddish-brown.

♀. Not examined.

Length of fore wing: 7.4–10.2 mm.

Specimens examined. [Hokkaido] 1♂, Akan-ko, Kushiro, 19. vii. 1979 (K. Ôhara, at light), KUIC; 1♂, Biei, Kamikawa, 29. v. 1984 (S. Suzuki), SEHU; 1♂, Mt. Daisetsu, 30. vii. 1967 (K. Kusigemati), KUIC; 4♂, Berabonai, Asyoro, Tokachi, 24. vii. 1967 (A. Nakanishi), MNHA; 2♂, Tokachimitsumata, 26. vii. 1984 (O. Tadauchi), KUEC; 1♂ (22. v. 1985) & 1♂ (28. v. 1985), Bibai, Sorachi, (S. Suzuki), SEHU; 1♂, Mt. Yubari-dake, Sorachi, 15. vii. 1967 (T. Saigusa), MNHA: 1♂ (24. v. 1965, S. Yamane), 4♂ (21. v. 1967, K. Kusigemati), 2♂ (23. vii. 1966, K. Kusigemati) & 1♂ (13. viii. 1966, T. Kocha), Sapporo, KUIC; 2♂, Moiwa, Sapporo, 2. vii. 1964 (K. Kusigemati), KUIC; 1♂ (19. viii. 1964, S. Suzuki, SEHU), 3♂ (21. viii. 1964, T. Kumata, SEHU), 1♂ (13. viii. 1966, M. Suwa, SEHU), 1♂ (17. vi. 1967, K. Kusigemati, KUIC) and 1♂ (4. viii. 1967, K. Kusigemati, KUIC), Soranuma, Sapporo; 1♂ (2. viii. 1965) & 1♂ (26. v. 1967), Jozankei, Sapporo, (K. Kusigemati), KUIC; 1♂, Kannon-zawa, Sapporo, 7 – 21. ix. 1993 (N. Kuhara, Malaise trap), NIAES; 1♂, Shimamatsu, 19. viii. 1967 (K. Kusigemati), KUIC. [Honshu] Iwate Pref.: 1♂, Chausudake, Hachimantai, 11 – 12. viii. 1979 (I. Kanazawa), NIAES. Yamagata Pref.: 1♂ (27. vii. 1975) & 1♂ (1. viii. 1975), Chokai, (O. Yata), MNHA; 1♂, Mt. Funagata, 2. viii. 1961 (S. Katsuya), NIAES. Fukushima Pref.: 2♂, Mt. Tashiroyama, Tateiwa, 29. viii. 1992 (M. Yoshida, at light), NIAES. Niigata Pref.: 1♂, Mikuni-tôge, 13. vii. 1966 (Y. Miyatake), MNHA. Ishikawa Pref.: 1♂, Ohara, Komatsu, 29. iv. 199? (I. Togashi), NIAES; 1♂, Zenjô-dô, Okuchi, 26. vii. 1992 (I. Togashi), NIAES. Gunma Pref.: 1♂, Hatomachi-tôge, 19. viii. 1967 (K. Ogura), NIAES. Tokyo: 1♂ (1–2. vi. 1988, S. Saito) & 3♂ (13. vii. 1988, H. Nagaoka, at light), Yazawa, Hinohara, NIAES; 20♂, Mt. Syôtôsan, Hinohara, 14. vii. 1988 (S. Yamada & K. Matsumoto, at light), NIAES. Nagano Pref.: 1♂, Iwanadome, Shimashima, 11–12. ix. 1975 (A. Nakanishi), MNHA; 3♂ (16–27. vii. 1961, J. Minamikawa, NIAES) & 1♂ (30. v. 1975, A. Nakanishi et al., Malaise trap, MNHA), Shiga-kôgen; 1♂, Nonomi, 27. vii. 1972 (K. Yamagishi), ZLMU. Yamanashi Pref.: 1♂, Kiyosato, 19. vii. 1984 (S. Nomura et al., at light), NIAES; 1♂, Mt. Nyugasa, 10. viii. 1961 (A. Nakanishi), MNHA. Shizuoka Pref.- 1♂, Mt. Fuji, 3. viii. 1970 (R. Nakano), NIAES. Tottori Pref.: 3♂, Mt. Daisen, 9. vi. 1981 (T. Gotô), NIAES. Hiroshima Pref.: 1♂, Mt. Azumayama, 23. ix. 1984 (K. Konishi et al., at light), NIAES. [Shikoku] Tokushima Pref.: 1♂, Mt. Tsurugisan, 19. vi. 1981 (S. Naomi), NIAES. Kochi Pref.: 1♂ (14. viii. 1999) & 1♂ (25. vi. 2000), Tengukôgen, Higashitsuno, (I. Yamashita, at light), NIAES; 1♂, Teragawa, Hongawa, 1. vii. 1995 (K. Konishi et al., at light), NIAES. [Kyushu] Fukuoka Pref.: 1♂, Mt. Hikosan, 5. vii. 1983 (R. Noda, at light), NIAES. Kumamoto Pref.: 1♂ (6. vi. 1980, M. Yamamoto) and 3♂ (19. ix. 1992, R. Noda, at light), Mt. Shiratoriyama, NIAES.

Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu), across the Holarctic region. Remarks. Townes (1938) placed this species in the virgata group. However, latungula is different from virgata in the absences of overhang and strip of minutely papillate cuticle on the mesal surface of paramere, and shares the shape of the digitus with virgata and kiuhabona . Thus, this species can not be assigned to any species group.

Figures

FIGURES 42 – 46. Male of Netelia (Bessobates) latungula. 42, Head in dorsal view; 43, head in frontal view; 44, mesosoma in dorsal view; 45, fore wing; 46, hind wing.

FIGURES 47 – 52. Male subgenital plate and genitalia of Netelia (Bessobates) spp. 47 – 49, Netelia (Bessobates) kiuhabona; 50 – 52, N. (B.) latungula; 47, 50, subgenital plate; 48, 51, paramere in mesal view; 49, 52, aedeagus in lateral view.