Nipponopius incisus Fischer, 1963

Zhou, Tong, Achterberg, Cornelis van & Guo, Zi-Sheng, 2017, The genus Nipponopius Fischer (Hymenoptera, Braconidae, Opiinae) new for China, with description of a new species, Journal of Hymenoptera Research 57, pp. 123-134 : 126-128

Nipponopius incisus Fischer, 1963 Figures 1-16

Nipponopius incisus Fischer, 1963: 283, 1972b: 481; Tobias, 1998: 563.

Type material.

Holotype, ♀ ( AEI), "Kami Kochi, Jap[an], 24.vii.1954, Townes Family", “Holotype”, " Nipponopius incisus n. sp., ♀, det. Fischer", "Type No. 260", " Nipponopius incisus Fischer, Type".

Diagnosis.

For the differences see the key to species and the diagnosis of N. glabricaudatus sp. n.

Redescription.

Holotype, ♀, length of body 4.3 mm; of fore wing 4.8 mm.

Head. Temple gradually narrowed behind eyes (Fig. 3 ); antenna with 41 segments, 1.1 times as long as fore wing, third segment 1.2 times as long as fourth segment, length of third, fourth and penultimate segments 2.2, 1.8 and 1.3 times their width, respectively (Figs 4 , 16 ); maxillary palp as long as height of head; labial palp segments slender; occipital carina far separated from hypostomal carina and carina dorsally absent; hypostomal carina wide, protruding (Figs 5 , 10 ); length of eye in dorsal view 1.4 times temple; temple and vertex sparsely punctate and with long setae; stemmaticum weakly convex, with small depression behind stemmaticum (Fig. 3 ); OOL: diameter of ocellus: POL = 25:8:10; frons distinctly depressed behind antennal sockets, glabrous medially, punctulate and setose laterally, with two deep pits in front of anterior ocellus (Fig. 3 ); face punctulate, medially elevated (Fig. 2 ), extending as a median carina to level of posterior margin of antennal sockets; width of clypeus 4.0 times its maximum height and 0.7 times width of face; anterior tentorial pits small (Fig. 2 ); clypeus moderately convex, punctate and protruding, ventrally slightly curved and thin; hypoclypeal depression narrow (Fig. 2 ); malar suture curved, deep and short; length of malar space 0.7 times basal width of mandible; mandible triangular and with narrow ventral carina (Figs 5 , 10 ).

Mesosoma 1.3 times longer than high; dorsal pronope absent, except for transverse groove; pronotal side smooth, only oblique groove and posteriorly crenulated (Fig. 5 ); epicnemial area and mesopleuron dorsally narrowly crenulate; precoxal sulcus reaching anterior margin of mesopleuron, moderately wide and distinctly crenulate (Fig. 5 ); remainder of mesopleuron mostly smooth; episternal scrobe large; pleural sulcus largely smooth (Fig. 5 ); anterior metapleural sulcus crenulate and widened ventrally (Fig. 5 ), metapleuron largely smooth dorsally, except rugosity ventrally (Fig. 5 ); notauli short, finely crenulated anteriorly and absent posteriorly; medio-posterior depression of mesoscutum long and narrow droplet-shaped; lateral lobes of mesoscutum mostly glabrous, smooth and shiny, with few setae at middle lobe and near notauli; scutellar sulcus deep and with 6 distinct longitudinal carinae, 0.2 times as long as scutellum; scutellum convex, largely smooth and with few setae; side of scutellum smooth except some indistinct crenulation (Fig. 6 ); metanotum largely smooth but posterior margin narrowly crenulate; dorsal surface of propodeum coarsely reticulate, and without medio-longitudinal or transverse carinae, its posterior surface hardly differentiated (Fig. 5 ).

Wings. Fore wing: pterostigma elliptical; M+CU1 entirely sclerotized; 1-SR long; r issued just before middle of pterostigma (Fig. 1 ); r:2-SR:3-SR:SR1 = 3:14:23:41; SR1 straight;1-CU1:2-CU1 = 2:15; CU1b equal to 3-CU1; m-cu postfurcal;1-CU1 hardly widened. Hind wing: M+CU:1-M:1r-m = 21:21:14; cu-a straight (Fig. 1 ).

Legs. Hind coxa smooth, with long setae, and angularly protruding ventro-medially (Figs 8 , 9 ); femora widened; tarsal claws robust basally and slender apically (Fig. 12 ); length of femur, tibia and basitarsus of hind leg 2.6, 5.6 and 2.0 times their width, respectively.

Metasoma. Length of first metasomal tergite 1.1 times its apical width, medially strongly convex, shiny, rather finely punctate-rugose, with dorsal carinae only near dorsope, and with laterope deep and elliptical (Fig. 5 ); second suture obsolescent; second to sixth tergites smooth and their apical half setose; combined length of second and third tergites 0.4 times total length of metasoma (Fig. 5 ); apical third of ovipositor sheath distinctly setose, sheath 0.18 times as long as fore wing and 0.8 times as long as hind tibia (Figs 5 , 8 ).

Colour. Black; palpi pale yellowish, mandible (except dark brown apices), clypeus, scapus ventrally, annellus, inner orbits above level of antennal sockets, tegulae largely (humeral plate partly dark brown) and legs yellowish-brown; face, temple, metasoma (except first tergite), pterostigma and veins dark brown; wing membrane subhyaline.

Distribution.

Japan (Honshu, including garden of Imperial Palace in Tokyo; Konishi and Maetô 2000), Far East Russia (Sakhalin oblast).

Figures

Figures 1 - 16. Nipponopius incisus Fischer, ♀, holotype. 1 wings 2 head anterior 3 head dorsal 4 antenna 5 habitus lateral 6 mesosoma dorsal 7 first metasomal tergite dorsal 8 hind leg lateral 9 hind coxa lateral 10 mandible and occipital carina latero-ventral 11 fore tibial spur 12 outer hind claw lateral 13 hypopygium lateral 14 hypopygium ventral 15 hind tarsus dorsal 16 apical segments of antenna.