Stenobracon Szépligeti, 1901

Li, Yang, He, Jun-Hua & Chen, Xue-Xin, 2020, Review of six genera of Braconinae Nees (Hymenoptera, Braconidae) in China, with the description of eleven new species, Zootaxa 4818 (1), pp. 1-74 : 50-51

Genus Stenobracon Szépligeti, 1901

Figs 39–46

Stenobracon Szépligeti, 1901: 359 ; Fahringer, 1928: 22; Shenefelt, 1978: 1724; Quicke, 1987: 132; Quicke et Ingram, 1993: 323; Chishti et Quicke, 1996: 236; van Achterberg et Polaszek, 1996: 40. Type species: Stenobracon oculatus Szépligeti, 1901 (Monobasic) .

Euvipio Szépligeti, 1904: 14 ; Shenefelt, 1978: 1839; Quicke, 1987: 112; Type species: Euvipio rufa Szépligeti, 1904 (Monobasic) . Synonymized by van Achterberg et Polaszek, 1996: 40.

Elphea Cameron, 1903: 121 ; Shenefelt, 1978: 1724; Chishti et Quicke, 1996: 236; van Achterberg et Polaszek, 1996: 40. Type species: Elphea lutea Cameron (Designated by Viereck, 1914: 51). Synonymized by Roman, 1914: 22.

Phanaulax Cameron, 1910: 43 ; Shenefelt, 1978: 1724; Chishti et Quicke, 1996: 236; van Achterberg et Polaszek, 1996: 40. Type species: Phanaulax levituberculatus Cameron (Monobasic) . Synonymized by Roman, 1914: 22.

Diagnosis. Body usually large; terminal flagellomere often acute; median flagellomeres longer than wide to weakly wider than length; scapus ovoid or robust, outer side apically usually emarginate and longer ventrally than dorsally, inner side secondary edge absent or reduced, and ventrally often gradually narrowed; eye glabrous, weakly emarginate; face often flat, usually largely smooth but with some punctures and setae especially laterally, and with medio-longitudinal groove to antennal sockets; clypeus elevated above face, moderately narrow and dorsal carina usually present; malar suture often indistinct; labio-maxillary complex not elongate; frons weakly to moderately concave medially, median groove usually rather shallow; mesosoma usually largely smooth and shiny; precoxal sulcus absent; notauli often complete and moderately developed, rarely reduce posteriorly; scutellar sulcus narrow and crenulate; propodeum largely smooth, without medio-longitudinal carina, densely and long setose laterally; metanotum distinctly convex medially, without median carina anteriorly; angle between veins 1-SR and C+SC+R of fore wing approximately 30º; marginal cell of fore wing moderately short; vein 1-SR+M of fore wing more or less straight or weakly curved; fore wing vein 1-M often weakly curved; second submarginal cell of fore wing medium-sized, and third submarginal cell often distinctly longer than second; fore wing vein 3-CU1 not expanded posteriorly; hind wing vein 1r-m weakly curved, longer to slightly shorter than vein SC+R1; apex of hind wing vein R1 with 3 hamuli; apex of hind wing vein C+SC+R with 3–6 especially thickened bristles; fore tibia with band of bristles or slender spines ventro-laterally; claws simple and slender, and with small rounded basal lobe; median area of first metasomal tergite elongate or ovoid, and strongly elevated; first tergite usually without medio-longitudinal and dorso-lateral carina; medio-basal triangular area of second metasomal tergite usually large, acute apically, and at least reaching middle of the tergite; second suture distinctly crenulate; antero-lateral areas of third tergite developed, clearly defined and nearly joining medially; third and fourth tergites with subapical transverse grooves; fifth–sev-enth tergites smooth; ovipositor normal, subapically upper valve slender and with nodus, and its lower valve with some minute teeth ventrally; ovipositor sheath slightly to much longer than length of fore wing.

Biology. Most species are idiobiont ectoparasitoids of concealed Lepidoptera larvae ( Pyralidae , Noctuidae ), and some species are ectoparasitoids of larvae of Cossidae and Brachodidae (Lepidoptera) ( Ramakrishna Ayyar 1928; Narayanan 1938; Sonan 1944; Mathur 1967; Saxena 1972; Chou 1981; Chishti et Quicke 1996; van Achterberg et Polaszek 1996; Yu et al. 2016).

Distribution. Afrotropical; Australasian; Oriental; Palaearctic.

Note. van Achterberg et Polaszek (1996) divided this genus into two subgenera: Euvipio Szépligeti, 1904 and Stenobracon Szépligeti, 1901 ; but in this research, we only found one subgenus Stenobracon in China.

Figures

FIGURE 39. Stenobracon (Stenobracon) deesae (Cameron, 1902), ♀, habitus lateral.

FIGURE 40. Stenobracon (Stenobracon) deesae (Cameron, 1902). ♀. a. fore wing; b. hind wing; c. mesosoma, lateral view; d. mesosoma, dorsal view; e. metasoma, dorsal view; f. hind leg, lateral view; g. head, front view; h. head, dorsal view; i. head, lateral view; j. first metasomal tergite, dorsal view; k. sacpus outer side, lateral view; l. apex of ovipositor, lateral view.

FIGURE 41. Stenobracon (Stenobracon) longatus sp. nov., ♀, holotype, habitus lateral.

FIGURE 42. Stenobracon (Stenobracon) longatus sp. nov., ♀, holotype. a. fore wing; b. hind wing; c. mesosoma, lateral view; d. mesosoma, dorsal view; e. metasoma, dorsal view; f. hind leg, lateral view; g. head, front view; h. head, dorsal view; i. head, lateral view; j. propodeum, dorsal view; k. first metasomal tergite, dorsal view; l. sacpus outer side, lateral view; m. apex of ovipositor, lateral view.

FIGURE 43. Stenobracon (Stenobracon) nicevillei (Bingham, 1901), ♀, habitus lateral.

FIGURE 44. Stenobracon (Stenobracon) nicevillei (Bingham, 1901). ♀. a. fore wing; b. hind wing; c. mesosoma, lateral view; d. mesosoma, dorsal view; e. metasoma, dorsal view; f. hind leg, lateral view; g. head, front view; h. head, dorsal view; i. head, lateral view; j. sacpus outer side, lateral view.

FIGURE 45. Stenobracon (Stenobracon) oculatus Szépligeti, 1901, ♀, habitus lateral.

FIGURE 46. Stenobracon (Stenobracon) oculatus Szépligeti, 1901. ♀. a. fore wing; b. hind wing; c. mesosoma, lateral view; d. mesosoma, dorsal view; e. metasoma, dorsal view; f. hind leg, lateral view; g. head, front view; h. head, dorsal view; i. head, lateral view; j. sacpus outer side, lateral view; k. apex of ovipositor, lateral view.