Bracon (Chivinia) zimini ( Shestakov, 1932 )

Long, Khuat Dang, Achterberg, Cornelis Van, Dzuong, Nguyen Van, Oanh, Nguyen Thi & Mai, Pham Quynh, 2023, The identity of Chivinia Shestakov (Hymenoptera: Braconidae, Braconinae), with description of a similar species from the Oriental region, Zootaxa 5343 (6), pp. 531-538 : 533-534

publication ID	https://doi.org/ 10.11646/zootaxa.5343.6.3
publication LSID	lsid:zoobank.org:pub:726A3BAF-678C-48B6-9B06-83644032EA78
DOI	https://doi.org/10.5281/zenodo.10562858
persistent identifier	https://treatment.plazi.org/id/039B87BC-054D-FFAD-D5AF-26BCFE50DF85
treatment provided by	Plazi
scientific name	Bracon (Chivinia) zimini ( Shestakov, 1932 )
status

Treatment

Bracon (Chivinia) zimini ( Shestakov, 1932) View in CoL

( Fig. 1 View FIGURE 1 )

Type material. Holotype ( ZISP), female, “[ Tajikistan], Khiva, 9.iv.[1]927, L. Zimin / b. doruct sad, kosh po lutserne [= swept from lucerne/alfalfa in orchard]”, “ Chivinia n.g. zimini sp. n., det. Shestakov ”, “Syntypus”.

Redescription. Holotype, female, length of body 1.8 mm, of fore wing 2.1 mm, of antenna 1.8 mm. Head. Antenna with 21 antennomeres, scape ventrally somewhat shorter than dorsally ( Fig. 1J View FIGURE 1 ); apical flagellomere without apical spine and 2.0 × longer than its maximum width ( Fig. 1K View FIGURE 1 ); first and second flagellomeres 3.3 and 2.7 × longer than wide and first 1.2 × longer than second; penultimate flagellomere 1.5 × longer than wide; length of maxillary palp 0.6 × as long as height of head; clypeus height: inter-tentorial distance: tentorio-ocular distance = 1: 3: 3; clypeus nearly flat and smooth, its ventral margin weakly concave; eye slightly emarginate ( Fig. 1E View FIGURE 1 ); face rather flat and smooth; eye height: shortest distance between eyes: head width = 30: 34: 63; frons mainly flat and smooth ( Fig. 1H View FIGURE 1 ); vertex smooth and convex, with rather short setae; shortest distance between posterior ocelli: maximum diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 15: 7: 20; temples directly narrowed behind eyes and eye 2.6 × as long as temple in dorsal view ( Fig. 1H View FIGURE 1 ); malar suture shallow and long ( Fig. 1E View FIGURE 1 ); malar space 0.8 × basal width of mandible and head directly narrowed below eyes.

Mesosoma. Length of mesosoma 1.4 × its height ( Fig. 1L View FIGURE 1 ); pronotum smooth and with submedial groove; mesopleuron smooth and largely glabrous; episternal scrobe deep; metapleuron smooth; notauli entirely absent, also anteriorly ( Figs 1F, L View FIGURE 1 ); mesoscutum smooth, and with setae along imaginary notaulic courses; scutellar sulcus shallow, narrow and virtually smooth ( Fig. 1F View FIGURE 1 ); scutellum smooth and flat; propodeum smooth and its spiracle small, situated behind middle of propodeum ( Fig. 1L View FIGURE 1 ).

Wings. Fore wing ( Fig. 1A View FIGURE 1 ): r: 3-SR+SR1: 2-SR= 5: 19: 11; 1-SR+M straight, 1.1 × longer than 1-M; m-cu straight; angle between 1-SR and C+SC+R about 75° ( Fig. 1D View FIGURE 1 ); cu-a narrowly but distinctly postfurcal; end of sclerotized part of CU1a widened ( Fig. 1A View FIGURE 1 ). Hind wing: SC+R1: 2-SC+R: 1r-m: 1-M: M+CU = 28: 3: 9: 46: 20 ( Fig. 1B View FIGURE 1 ).

Legs. Length of hind femur, tibia and basitarsus 3.2, 8.5 and 5.5 × longer than their maximum width, respectively; hind femur rather compressed; hind tibial spurs 0.2 × as long as hind basitarsus; hind tarsus long setose ventrally ( Fig. 1G View FIGURE 1 ).

Metasoma. Length of first tergite 1.4 × its apical width, surface smooth and its median area convex; lateral grooves of first tergite smooth ( Fig. 1I View FIGURE 1 ); second suture absent; medially second tergite 0.8 × as long as third tergite; second–seventh tergites smooth; setose part of ovipositor sheath 0.1 × as long as fore wing; hypopygium medium-sized and apically acute ( Fig. 1L View FIGURE 1 ).

Colour. Brownish yellow; antenna (except annellus), stemmaticum and hind telotarsus blackish; mesosternum, hind femur ventrally, apical half of hind tibia, hind tarsus (except telotarsus), middle of mesoscutal lobes first and second tergites (except laterally), third–fifth tergites (except apically) and ovipositor sheath more or less dark brown; wing membrane hyaline; pterostigma and veins dark brown but basal 0.7 of vein C+SC+R of fore wing and basal veins of hind wing yellowish.

Biology. Unknown, but collected from alfalfa in an orchard.

Male. Unknown.

Distribution. Tajikistan.