Odontepyris ecarinatus Wang, He & Chen, 2021

Wang, Chung-Hong, He, Jun-Hua & Chen, Xue-Xin, 2021, The genus Odontepyris Kieffer (Hymenoptera, Bethylidae) from China, Zootaxa 4964 (3), pp. 497-522 : 501-502

Odontepyris ecarinatus Wang, He & Chen sp. nov.

Fig. 2

Diagnosis. Female. Head as long as wide with vertex crest straight. Median clypeal carina not exceeding anterior imaginary line of eyes. Frons and vertex coriaceous with punctures separate 1.0–3.0 × its diameter. Occipital carina absent. Lateral margin of dorsal pronotal area not carinate. Metapostnotal lateral carina absent. Forewing with first median cell closed.

Description. Holotype ( Fig. 2a ). Female. Body length: 4.46 mm. Forewing length: 2.87 mm.

Color. Head black; mandible and antenna yellow. Mesosoma black; posterior margin of pronotum lighter; legs yellow, coxae castaneous; tegula castaneous. Metasoma black with posterior margin of each segment lighter. Forewing hyaline tinged with light castaneous; veins yellowish; prestigma and pterostigma light castaneous.

Pubescence. Body with white setae in different density. Antenna with dense appressed white setae. Forewing with short dense light castaneous setae.

Head ( Figs 2b, 2c, 2d ). Head as long as wide. Mandible with four teeth; upper most with apex rounded; lower three with apex sharp. Median clypeal lobe obtuse-angled; median clypeal carina not exceeding anterior imaginary line of eyes. Antennomeres II–VI in ratio of 118:127:113:111: 111 in length and 1.75, 1.81, 1.57, 1.50, 1.46 × wide respectively; antennal scrobal carina absent. Frons coriaceous with punctures separate 1.0–3.0 × its diameter. WF 1.09 × LE. LE 2.83 × DEV. Anterior ocellus passing supra-ocular line 0.81 × DAO; POL 0.95 × AOL; OOL 1.21 × WOT; DPV 0.47 × as wide as DAO. Vertex coriaceous with punctures separate 1.0–3.0 × its diameter; vertex crest straight. Sides of head behind eyes converging posteriorly. Occipital carina absent. Malar line between mandible and eye present. Gena coriaceous with shallow punctures; ventral area of gena coriaceous with shallow sparse punctures.

Mesosoma ( Figs 2e, 2f, 2g ). Dorsal pronotal area coriaceous with shallow punctures separate more than 2.0 × its diameter, half as long as wide, lateral margin not papillate, posterior margin almost straight; cervical pronotal area coriaceous, almost vertical in lateral view; pronotal flange visible in dorsal view; lateral pronotal area coriaceous. Mesoscutum coriaceous with punctures separate more than its diameter; parapsidal furrow complete. Mesoscutellum coriaceous, with few punctures; mesoscutellar pit oval, each pit distant from another by 3.32 × its diameter; mesoscutellar groove weak. Metapectal-propodeal disc wider than long, imbricate, depressing near lateral marginal carina; metapostnotal median carina complete, metapostnotal lateral carina absent; lateral marginal carina of metapectal-propodeal complex complete, transverse posterior carina of metapectal-propodeal complex present, incurved medially; anterior metapleural area coriaceous, metapleural line with three pits; lateral surface of metapectal-propodeal complex coriaceous, upper one third with irregular rugulae; propodeal declivity coriaceous. Propleuron coriaceous, weakly papillate. Lateral surface of mesopectus coarsely coriaceous with shallow punctures; mesopleural dentate process absent, upper mesopleural fovea and mesopleural pit developed; ventral surface weakly papillate; mesodiscrimen short.

Forewing ( Fig. 2h ). First median cell quadrate; Rs 2 v 1.55 × M 2 v; 2r-rs&Rs 2 v not arched apically.

Metasoma. Abdominal terga shiny with tiny shallow punctures; longitudinal sulcus of second abdominal tergum extending to half of second abdominal tergum and fovea-like basally. Abdominal sterna weakly coriaceous with different size punctures; second abdominal sternum coriaceous with longitudinal carina.

MALE unknown.

Variation. Body length: 4.46–5.30 mm; forewing length: 2.87–3.33 mm. Antenna light castaneous to castaneous; coxae and femora castaneous to dark castaneous. Rs 2 v 1.39–1.55 × M 2 v.

Type material. Holotype ♀ ( ZJUH), China, Hainan Province, Baisha Country, Jiujialing , 19˚14ˊ19˝N, 109˚23ˊ52˝E, 17.vii.2010, Huayan Chen, No. 201900326 . Paratype: 1♀ ( ZJUH), Hainan Province, Yinggeling , 19˚11ˊ22˝N, 109˚27ˊ13˝E, 17–20.vii.2010, Huayan Chen, No. 201900330 ; 1♀ ( ZJUH), China, Guangdong Prov- ince, Guangzhou, South China Botanical Garden , 23°10.57ˊN, 113°22ˊE, 7–12.vii.2018, MT, No. 201900321 ; 1♀ ( ZJUH), China, Hainan Province, Baisha Country, Jiujialing , 19˚14ˊ19˝N, 109˚23ˊ52˝E, 18. vii. 2010, YPT, No. 201900323 .

Distribution. China (Guangdong, Hainan, Yunnan).

Etymology. The specific name “ ecarinatus ” which composed by two Latin words the prefix “e-” (without) and “carina” (keel) refers to metapostnotal lateral carina absent.

Comments. This species is similar to O. obtusus Xu & He, 2006 by frons and vertex with punctures separate 1.0–3.0 × its diameter, dorsal pronotal area not papillate and lateral margin of dorsal pronotal area not carinate. However, this new species can be distinguished by having apex of median clypeal lobe arcute and metapostnotal lateral carina absent, whereas O. obtusus having apex of median clypeal lobe rounded and metapostnotal lateral carina present.

Figures

FIGURE 2. Odontepyris ecarinatus sp. nov. holotype, ♀. a. Habitus lateral; b. Head, frontal view; c. Mandible; d. Antenna; e. Mesosoma, dorsal view; f. Mesosoma, lateral view; g. Metapectal-propodeal complex, dorsal view; h. Forewing. Scale bars: 0.15 mm.