Macroteleia xui Hong & Chen, 2020

Hong, Chun-Dan, Popovici, Ovidiu Alin & Chen, Hua-Yan, 2020, Notes on Macroteleia Westwood (Hymenoptera, Scelionidae) from China, with description of a new species, ZooKeys 939, pp. 29-43 : 29

Macroteleia xui Hong & Chen sp. nov. Figures 19-24

Material examined.

Holotype, female: China: Hebei, Baoding, Hebei Agricultural Unv., West Campus, MT, 38°49'44"N, 115°27'1"E, 30.VIII-6.IX.2017, Fan Fan, SACU 3040364 (deposited in SYSBM). Paratypes: China: 1 female, Yunnan, Xishuangbanna, Menghai, Bulangshan Village, 1595 m, Area D, forest, 21°44.761'N, 100°25.959'E, 20.IV-20.VII.2018, MT (Malaise trap), Li Ma, SCAU 3040370 (SYSBM); 1 female, Shandong, Shanghe County, MT4, 37°16'4"N, 117°9'10"E, 18-24.VIII.2018, Jiahe Yan, SCAU 3048687 (SYSBM); 3 females, Shandong, Shanghe County, MT4, 37°16'4"N, 117°9'10"E, 7-14.IX.2018, Jiahe Yan, SCAU 3048593-3048595 (SYSBM).

Diagnosis.

This species is most similar to M. striativentris Crawford in color and size but can be distinguished by the medially divided propodeum and triangular metascutellum.

Description. Female.

Body length: 5.48-5.60 mm (N = 6).

Color. Head and mesosoma black, metasoma dark brown to black; mandible brown with teeth dark brown; palpi yellow; legs pale brown throughout; A1-A6 yellow, remainder of antenna black; fore wing hyaline.

Head. Transverse in dorsal view, 1.4-1.5 × as wide as long, slightly wider than mesosoma; OOL short, 0.17-0.20 × times minimum diameter of lateral ocellus; POL 1.5-1.54 × LOL; occipital carina continuous medially, irregularly punctate; central keel weakly developed, extending onto interantennal process; medial frons punctate rugose ventrally, with irregularly shaped smooth area dorsally; frons below median ocellus punctate rugulose; posterior vertex sparsely punctate rugulose behind posterior ocelli, becoming densely punctate posteriorly; gena punctate rugose; length of A3 as long as A2.

Mesosoma. Cervical pronotal area densely punctate; dorsal pronotal area punctate rugulose; lateral pronotal area smooth dorsally, punctate rugulose ventrally; netrion densely finely punctate; notaulus shallow, foveolate; mesoscutum densely punctate; mesoscutellum moderately finely punctate throughout; metascutellum triangular, strongly produced medially, extending into space between propodeal lobes; propodeum narrowly divided into two subtriangular lobes, each side with several irregular longitudinal carinae medially, otherwise punctate rugulose; upper mesepisternum with a row of robust longitudinal carinae below subalar pit; lower mesepisternum variably smooth to punctate rugulose; mesopleural depression smooth; metapleuron longitudinally striate dorsally, punctate rugose ventrally.

Legs. Slender; hind femur weakly swollen, 3.4-4.0 × as long as its maximum width; hind tibia without spines over outer surface; hind basitarsus 10.60-11.20 × as long as its maximum width.

Wings. Apex of fore wing extending from as far as middle of T4; R 1.97-2.06 × as long as r-rs, R1 1.83-1.90 × length of R.

Metasoma. Posterior margin of transverse sulcus on T2 straight; sublateral tergal carinae well developed on T1-T3; T1-T3 densely longitudinally striate medially, with delicate punctures in interstices, punctate rugulose laterally; T4-T6 densely longitudinally striate, with numerous delicate punctures in interstices; length of T3 0.78-0.81 × length of T6; T5 distinctly longer than wide; S2-S6 densely longitudinally striate, with delicate punctures in interstices; prominent longitudinal median carina present on S2-S4.

Male. Unknown.

Etymology.

This speices is named xui in honor of the late Professor Zaifu Xu for his great contribution to Chinese Hymenoptera taxonomy.

Distribution.

China (Hebei, Shandong, Yunnan).

Figures

Figures 19 - 24. Macroteleia xui sp. nov., holotype, female (SACU 3040364) 19 dorsal habitus 20 head and mesosoma, dorsal view 21 lateral habitus 22 head and mesosoma, lateral view 23 head, anterior view 24 metasoma, dorsal view.