Dolichogenidea carborugosa Liu & Chen, 2019

Liu, Zhen, He, Jun-Hua, Chen, Xue-Xin, Gupta, Ankita & Moghaddam, Mostafa Ghafouri, 2019, The ultor - group of the genus Dolichogenidea Viereck (Hymenoptera, Braconidae, Microgastrinae) from China with the descriptions of thirty-nine new species, Zootaxa 4710 (1), pp. 1-134 : 34-38

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Dolichogenidea carborugosa Liu & Chen

sp. nov.

Dolichogenidea carborugosa Liu & Chen , sp. nov.

( Figs 15 View FIGURE 15 , 66 View FIGURE 66. 1–20 )

Description. Holotype. Female. Body length 2.6 mm, fore wing length 3.0 mm.

Head. Transverse in dorsal view, 2.0× as wide as long, nearly 0.9× as wide as mesoscutum ( Fig. 15d View FIGURE 15 ). Temple shiny with shallow, small punctures, not constricted behind eyes from dorsal view. Face ( Fig. 15g View FIGURE 15 ) transverse, 0.7× as high as wide, shiny with small, superficial punctures, inner margins of eyes parallel-sided. Ocelli large, posterior tangent to anterior ocellus touching posterior pair of ocelli, distance between fore and a hind ocellus distinctly shorter than diameter of a hind ocellus, POL: OD: OOL = 3.5:2.5:4.0. Antenna weakly shorter than body length, penultimate antennomere 1.2× longer than wide.

Mesosoma. Length:width:height = 48.0:30.0:33.0. Disc of mesonotum ( Fig. 15b View FIGURE 15 ) shiny with small, dense punctures. Scutellar sulcus straight, weakly curved laterally, rather narrow with dense carinae inbetween. Scutellum shiny, polished except several minute punctures. Propodeum ( Fig. 15f View FIGURE 15 ) shiny, with well-defined areolation which open at at anterior end and with indistinct transverse rugae inside, posterio-lateral fields shiny with several rugae, lateral-anterior parts shiny with indistinct hairy punctures. Mesopleuron highly polished, anterior part with shallow, sparse punctures.

Legs. Hind coxa shiny and polished. Spines on outer side of hind tibia stout, dense. Inner spur 3/5 length of hind basitarsus, outer spur 1/3. Basitarsus of hind leg a little shorter than tarsomeres 2–4 (11.5:13.5).

Wings. Pterostigma 2.7× as long as its widest part ( Fig. 15c View FIGURE 15 ). Vein 1-R1 1.2× longer than pterostigma, 5.6× as long as its distance from apex of marginal cell. Vein r arising from apex of pterostigma, r weakly inclined outwards, weakly shorter than width of pterostigma, indistinctly longer than 2-SR, distinctly angled with 2-SR at meeting, 2- M 3/5 length of 2-SR and slightly longer than 1-SR and as long as 2-SR+M, m-cu as long as width of pterostigma. First discal cell of fore wing as wide as high. Second discal cell of hind wing 1.8× wider than high. Vein cu-a weakly curved ( Fig. 15e View FIGURE 15 ).

Metasoma. 1.1× as long as mesosoma. T1 ( Fig. 15h View FIGURE 15 ) parallel-sided, slightly converged apically, 1.4× longer than hind width, basal third concave, weakly rugulose laterally, turned-over part weakly transverse, strongly finely rugose entirely, with short longitudinal carina anterio-medially. T2 finely rugose, 4.0× wider than long in middle, weakly curved apically. T3 1.4× longer than T2. Tergites posterior to T2 a little shiny with dense hairy bumps. Hypopygium not longer than apex of metasoma. Ovipositor sheath ( Fig. 15i View FIGURE 15 ) 1.1× length of hind tibia, thin and nearly parallel-sided. Ovipositor relatively thin, evenly taped apically.

Colour. Black ( Fig. 15a View FIGURE 15 ). Tegula black. Palpi reddish yellow and spurs whitish yellow. Antenna dark brown and ovipositor sheath black. Labrum dark brown and mandible red. Legs dark brown to black, except most part of fore leg, apex of mid femur, basal half of mid tibia, mid tarsus, and basal fourth of hind tibia bright reddish yellow. Wing membrane hyaline, vein 1-R1, C+SC+R, and border of pterostigma brown, pterostigma, vein r, 2-SR, 2-M light yellowish brown, other alar veins more or less colourless, pterostigma basally weakly whitish.

Variation. Body length 2.4–2.6 mm, fore wing length 2.6–3.0 mm.

Male. Unknown.

Host. Unknown.

Material examined ( ZJUH). Holotype: ♀, Mt. West Tianmu , Zhejiang, 1998.V.31, Chen Xuexin, No. 980492 . Paratype: 1♀, Honghua, Shenlongjia , Hubei, 1982.VIII.25, He Junhua, No. 825401 .

Distribution. Eastern Palaearctic [ China: Hubei]; Oriental [ China: Zhejiang].

Etymology. The specific name “ carborugosa ”, referring to appearance of T1 and T2 rugose as coal mine.

Remarks. This species is similar to D. punctipila Liu & Chen , sp. nov., but differs in the following: penultimate antennomere 1.2× longer than wide (the latter 1.7); ovipositor without attenuation (the latter distinctly with a short one); and spaces between punctures polished on posterior imaginary notaulic courses of mesonotum (the latter weakly rugulose).