Atanycolus longiquus, Li & He & Chen, 2020

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 : 19-21

Atanycolus longiquus sp. nov.

Figs 13–14

Type material. Holotype. ♀, China, Yunnan Prov., Xishuangbanna Meng’a , 1050–1080m, 10.VIII.1958, Pu Fuji, No. IOZ(E)1964570 ( IZCAS).

Diagnosis. This new species is very similar to A. grandis Wang et Chen, 2009 , but can be separated from the latter by the following characters: mesoscutum black (yellow in A. grandis , but sometimes lateral lobes blackish brown posteriorly); median area of first metasomal tergite with few striae, and remainder of tergite smooth (strongly sculptured); in dorsal view length of eye 0.9 × temple (1.2 ×); black spot of stemmaticum narrow, not extended posteriorly (spot extended posteriorly).

Description. Holotype, ♀, length of body 10.4 mm, of fore wing 9.8 mm, of ovipositor sheath 10.3 mm.

Head. Antenna incomplete, remaining part with 31 antennomeres; median flagellomeres 1.1 × longer than wide; first flagellomere 1.2 and 1.3 × longer than second and third, respectively, the latter being 1.8 × longer than wide; length of maxillary palp 0.9 × height of head; malar suture with some short setae and superficially sculptured ( Fig. 14g ); clypeus height: inter-tentorial distance: tentorio-ocular distance = 6: 11: 13; clypeus with two special long setae submedially; eye hardly emarginate ( Fig. 14g ); face smooth medially, with sparse and weak punctures laterally, and with dense long setae ( Fig. 14g ); eye height: shortest distance between eyes: head width = 15: 19: 37; frons largely smooth except for a few weak punctures, strongly concave behind antennal sockets, with a median groove ( Fig. 14h ); vertex largely smooth except for some weak punctures laterally, with sparse short setae; shortest distance between posterior ocelli: shortest diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 3: 4: 9; length of malar space equal to basal width of mandible; in dorsal view length of eye 0.9 × temple; temples subparallel-sided behind eyes ( Fig. 14h ).

Mesosoma. Length of mesosoma 1.7 × its height ( Fig. 14c ); notauli complete ( Fig. 14d ); mesoscutum smooth and sparsely short setose posteriorly ( Fig. 14d ); scutellar sulcus deep, moderately narrow and crenulate ( Fig. 14d ); scutellum smooth, with dense short setae posteriorly; metanotum moderately convex medially ( Fig. 14d ); propodeum largely smooth, without medio-longitudinal carina or groove, and sparsely setose medially, with dense long setae laterally ( Fig. 14d ).

Wings. Fore wing ( Fig. 14a ): SR1: 3-SR: r = 33: 22: 5; 1-SR+M weakly curved after arising from 1-M, 1.4 × longer than 1-M; 2-SR: 3-SR: r-m = 9: 22: 8; m-cu straight, 2.2 × longer than 2-SR+M; cu-a more or less interstitial. Hind wing ( Fig. 14b ): 1r-m slightly curved; SC+R1: 2-SC+R: 1r-m = 22: 5: 11.

Legs. Length of fore femur: tibia: tarsus = 22: 25: 45; length of hind femur: tibia: basitarsus = 30: 57: 18; length of femur, tibia and basitarsus of hind leg 3.1, 11.4 and 4.5 × their maximum width, respectively.

Metasoma. Length of first tergite 1.8 × its apical width, smooth medio-basally, median area convex, reticulate ( Fig. 14j ); first tergite with a relatively long medio-longitudinal carina but absent anteriorly, and with lateral carinae distinctly developed, lateral grooves wide and crenulate ( Fig. 14j ); triangular medio-basal area of second tergite smooth and very large, with some oblique crenulae laterally, attached to very short medio-longitudinal carina, carina absent near posterior margin of second tergite; antero-lateral areas of second tergite smooth and small, oblique anterior grooves wide and crenulate; second tergite coarsely sculptured, except for medio-basal and antero-lateral areas, and posteriorly ( Fig. 14e ); second suture deep, crenulate, nearly straight medially ( Fig. 14e ); antero-lateral areas of third tergite strongly convex; third tergite largely smooth except for antero-lateral grooves crenulate; antero-lateral areas of fourth tergite reduced ( Fig. 14e ); fourth–seventh tergites smooth ( Fig. 14e ); hypopygium acute apically, reaching far beyond level of apex of metasoma; ovipositor sheath 1.1 × as long as fore wing.

Colour. Largely black ( Fig. 13 ); head largely yellow, antenna, mandible apically and stemmaticum black ( Figs 14g, 14h ); pronotum and propleuron yellow ( Fig. 14c ); fore leg largely yellow but claws black; wing membrane infumate or smoky gray, but fore wing with a pale oblique stripe at level of vein 2-SR+M, pterostigma and veins dark brown ( Figs 14a, 14b ).

Biology. Unknown.

Distribution. China (Yunnan).

Etymology. Named after the relatively long temple: “longiquus” is Latin for “long, extended”.

Figures

FIGURE 13. Atanycolus longiquus sp. nov., ♀, holotype, habitus lateral.

FIGURE 14. Atanycolus longiquus 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. first metasomal tergite, dorsal view; k. sacpus outer side, lateral view.