Apanteles cavitergita Liu & Chen 2020, sp. nov.
Creators: name: Liu, Zhen
name: He, Jun-Hua
name: Chen, Xue-Xin
name: Gupta, Ankita
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Apanteles
Apanteles cavitergita

description: Apanteles cavitergita Liu & Chen, sp. nov.   
(Figures 89, 103)  
 Description. Holotype. Female. Body length 2.8 mm, fore wing length 3.1 mm.   
 Head. Transverse in dorsal view, 2.2× as wide as long, indistinctly narrower than mesoscutum. Vertex between eye and posterior ocellus dull with rough appearance. Temple dull with dense hairs, slightly constricted. Face 0.7× as high as wide, dull, rough without punctation, inner margin of eyes slightly constricted towards apex. Ocelli small, posterior tangent to anterior ocellus virtually transecting posterior ocelli, distance between fore and hind ocellus larger than diameter of hind ocellus, POL:OD:OOL=7.5:2.2:3.5. Antenna slightly shorter than body length, closely articulated, penultimate flagellomere almost quadrate.   
 Mesosoma. Length:width:height = 49.0:35.0:35.0. Disc of mesonotum shiny, with small and extremely shallow punctures, interspaces shorter than diameter of puncture; characteristic dense, silvery, pubescence present, pubescence longer and silky on posterior half of mesoscutum, superficial subrugulose-punctation at posterior end of notaulic courses. Scutellar sulcus curved, narrow with carinae in between. Scutellum shiny, smooth with long pubescence as posterior half of mesoscutum, narrow posteriorly. Lateral polished field of scutellum reaching over half length of scutellum. Propodeum shiny, two short arms reaching out from orifice, spiracle not enclosed with keels, almost smooth entirely, except with long white hairs anterio-laterally. Mesopleuron highly polished, anterior parts with extremely shallow punctures.   
 Legs. Hind coxa slightly shiny without puncture. Spines on outer side of third tibia acuminated, not dense. Inner spur 2/5 length of hind basitarsus, outer spur 0.3×. Basitarsus of hind leg almost as long as tarsomeres 2–4 combined, claws slightly longer.   
 Wings. Pterostigma 2.9× as long as its widest part. Vein 1-R1 0.8× of pterostigma, 1.3× as long as its distance from apex of marginal cell. Vein r arising from middle of pterostigma, slightly oblique outwards, nearly as long as width of pterostigma, 1.5× longer than 2-SR, distinctly angled at junction, 2-M 4/5 length of 2-SR, as long as 1-SR and 2-SR+M, m-cu as long as 2-SR. First discal cell of fore wing nearly 1.2× wider than high. Second submarginal cell of hind wing 1.4× wider than high. Vein cu-a nearly straight. Hind wing broad, 1-M distinctly shorter than distance between its distal extremity and apex of vannal lobe, and vannal lobe beyond its widest part slightly concave and hairless.   
 Metasoma. 0.9× as long as mesosoma. T1 nearly parallel-sided anterior half, strongly constricted towards apex from the middle, 1.9× longer than hind width, concave at basal half, turned-over part slightly shiny with trace of punctation laterally, longitudinal channel broad, shallow, and smooth, and apical tubercle polished. T2 shiny and smooth, 4.4× wider than long in the middle, straight apically. T3 2.0× longer than T2. Tergites posterior to T2 highly polished, shiny, and pubescent. Hypopygium not longer than apex of metasoma. Ovipositor sheath slightly shorter than length of hind tibia, narrow of even size, hairs sparse and long.   
 Colour. Black. Tegula dark brown. Labial palpi brown, maxillary and spurs pale yellowish. Antenna and ovipositor sheath dark brown to black. Labrum and mandible dark brown. Legs dark, except most parts of fore femur with tibia and tarsus, mid tarsus (except apical segment brown), basal half of mid tibia fumous, and basal fourth of hind tibia yellowish. Wing membrane hyaline, 1-R1 brown, C+SC+R and border of pterostigma pale yellow, other alar veins colourless, pterostigma pallid.   
 Variation. Body length 2.6–2.8 mm, fore wing length 3.0– 3.1 mm.   
 Male. Unknown.   
 Material examined. Holotype: 1♀, Nongwushi, Bole, Xinjiang, 2004.VIII.12, Tuerxun, No. 200600439. Paratypes: 1♀, ditto, No. 200600441; 1♀, Yushugouxiang, Changji, Xinjiang, 2004.VIII.19, Tuerxun, No. 200600843; 1♀, Jiuyunjie, Fukang, Xinjiang, 2004.VIII.17, Tuerxun, No. 200600791; 1♀, Huichengxiang, Hami, Xinjiang, 2004.VIII.1, Tuerxun, No. 200600236.   
 Distribution. China (Xinjiang).   
 Etymology. The specific name “ cavitergita ” derives from the Latin “cavea” and “tergitus”, referring to T1 strongly concave at basal half.   
 Remarks. This species is similar to A. setosus Liu & Chen, sp. nov., but differs in the following: vannal lobe beyond its widest part slightly concave (straight in latter); inner spur 2/5 length of hind basitarsus (fully half in latter); and penultimate flagellomere almost quadrate (1.4× longer than wide in latter).
description: Published as part of Liu, Zhen, He, Jun-Hua, Chen, Xue-Xin & Gupta, Ankita, 2020, The ater-group of the genus Apanteles Foerster (Hymenoptera, Braconidae, Microgastrinae) from China with the descriptions of forty-eight new species, pp. 1-205 in Zootaxa 4807 (1) on pages 179-181, DOI: 10.11646/zootaxa.4807.1.1, http://zenodo.org/record/3927639