Cyanopterus (Bracomorpha) transversus, Li & Achterberg & Chen, 2020

Li, Yang, Achterberg, Cornelis van & Chen, Xue-xin, 2020, A new genus and eight newly recorded genera of Braconinae Nees (Hymenoptera, Braconidae) from China, with descriptions of fourteen new species, ZooKeys 1038, pp. 105-178 : 105

Cyanopterus (Bracomorpha) transversus sp. nov. Figures 7 , 8

Material examined.

Holotype: ♀, China, Zhejiang Prov., Mt. Tianmu , 23.VI.1984, Zhu Xiliang, No. 842005 (ZJUH) . Paratypes. 1♀, China, Zhejiang Prov., Anji, Mt. Longwang , 31.VIII.1983, Chen Xuexin, No. 939811 (ZJUH) ; 1♀, China, Zhejiang Prov., Mt. West Tianmu , 4.IX.1987, Chen Xuexin, No. 877070 (ZJUH) ; 1♀, China, Zhejiang Prov., Songyang , 18-31.VII.1989, He Junhua, No. 895329 (ZJUH) ; 1♀, China, Zhejiang Prov., Mt. West Tianmu , 3.IX.1987, Wang Xingeng, No. 876768 (ZJUH) ; 1♀, China, Henan Prov., Mt. Jigong , 11.VII.1997, Chen Xuexin, No. 973715 (ZJUH) ; 1♀, China, Fujian Prov., Mt. Meihua , 1000-1400m, 23-24.VII.1988, Fan Jinjiang, No. 886653 (ZJUH) .

Diagnosis.

This new species is very similar to C. (I.) bohayicus Belokobylskij, 2000 [Russia], but can be separated from the latter by the following characters: T I 1.0-1.1 × longer than apical width (1.35 × in C. (I.) bohayicus ); fore leg blackish brown (yellowish brown); triangular medio-basal area of T II gradually tapering apically (strongly tapering apically); ovipositor sheath 0.2-0.3 × as long as fore wing (0.4 ×).

Description.

Holotype, ♀, length of body 6.2 mm, of fore wing 6.5 mm, of ovipositor sheath 1.6 mm.

Head. Antenna with 55 antennomeres; apical antennomere acute, 2.4 × longer than its maximum width; third antennomere 1.6 × longer than its maximum width, 1.3 and 1.4 × longer than fourth and fifth antennomers, respectively, the latter 1.1 × longer than wide; malar suture with dense short setae (Fig. 8i ); clypeus height: inter-tentorial distance: tentorio-ocular distance = 3: 8: 5; clypeus with sparse long setae; eye weakly emarginated (Fig. 8g ); face granulate, with dense and long setae (Fig. 8g ); eye height: shortest distance between eyes: head width = 14: 17: 32; frons largely smooth, weakly concave behind antennal sockets, with a strong median groove (Fig. 8h ); vertex smooth, but with short setae especially laterally; minimum distance between posterior ocelli: minimum diameter of elliptical posterior ocellus: minimum distance between posterior ocellus and eye = 1: 1: 2; temples largely smooth except for a few weak punctures, with sparse setae, and directly narrowed behind eyes (Fig. 8h ).

Mesosoma. Length of mesosoma 1.5 × its height (Fig. 8c ); notauli impressed in anterior half of mesoscutum (Fig. 8d ); mesoscutum smooth, with some sparse setae (Fig. 8d ); scutellar sulcus rather wide, moderately deep, and with crenulae (Fig. 8d ); scutellum with dense short setae posteriorly; metanotum strongly convex medially, and with a short median carina anteriorly (Fig. 8d ); propodeum smooth, without longitudinal carinae or groove, with sparse setae medially, and with dense long setae laterally (Fig. 8d ).

Wings. Fore wing (Fig. 8a ): SR1: 3-SR: r = 42: 31: 7; 1-SR+M more or less straight, and 1.6 × longer than 1-M; 2-SR: 3-SR: r-m = 13: 31: 11; angle between 1-SR and C+SC+R ca. 80°; m-cu straight; 2-SR+M rather short; cu-a slightly postfurcal. Hind wing (Fig. 8b ): SC+R1: 2-SC+R: 1r-m = 31: 8: 17.

Legs. Length of fore femur: tibia: tarsus = 25: 27: 41; length of hind femur: tibia: basitarsus = 33: 46: 18; length of femur, tibia and basitarsus of hind leg 3.7, 7.7 and 4.5 × their maximum width, respectively (Fig. 8f ); hind tibial spurs 0.35 and 0.40 × as long as hind basitarsus.

Metasoma. Length of T I equal to its apical width, median area convex and coarsely sculptured (Fig. 8j ); lateral grooves of T I strongly crenulate (Fig. 8j ); T II largely sculptured except posteriorly (Fig. 8e ); triangular medio-basal area of T II large and smooth, with some short oblique carinae laterally, and acute apically, but without medio-longitudinal carina; antero-lateral areas of T II developed and smooth, anterior grooves moderately wide and sparsely crenulate (Fig. 8e ); second suture deep and crenulate, wide and straight medially, narrow laterally (Fig. 8e ); T III-V with antero-lateral areas, and crenulate transverse subposterior groove (Fig. 8e ); T III-VII largely smooth, and with sparse short setae; hypopygium acute apically, not reaching level of apex of metasoma; ovipositor sheath 0.2 × as long as fore wing.

Colour. Head largely black, mandible (except for apically) and maxillary palps basally yellowish brown, surrounding area of eyes reddish yellow (Fig. 8g, h ); mesosoma largely reddish yellow (Fig. 8c ), metanotum, metapleuron and propodeum black (Fig. 8c, d ); legs, metasoma and ovipositor sheath black (Figs 7 , 8e, f ); wing membrane greyish brown, pterostigma and veins dark brown (Fig. 8a, b ).

Variation. Length of body of female 5.6-6.5 mm, of fore wing of female 6.0-6.9 mm, and of ovipositor sheath 1.4-2.3 mm; ovipositor sheath 0.5-0.6 × as long as fore wing; length of mesosoma 1.4-1.7 × its height; length of T I 1.0-1.1 × its apical width; ovipositor sheath 0.2-0.3 × as long as fore wing; fore femur and tibia sometimes somewhat reddish yellow.

Biology.

Unknown.

Distribution.

China (Henan, Fujian, Zhejiang).

Etymology.

Named after the transverse head, especially so in dorsal view: transversus is Latin for transverse.

Figures

Figure 7. Cyanopterus (Bracomorpha) transversus sp. nov., ♀, holotype, habitus, lateral view.

Figure 8. Cyanopterus (Bracomorpha) transversus 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, anterior view h head, dorsal view i head, lateral view j first metasomal tergite, dorsal view k apex of ovipositor, lateral view.