Odontepyris occiputalis 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 : 512-514

Odontepyris occiputalis Wang, He & Chen sp. nov.

Fig. 7

Diagnosis. Female. Head wider than long, vertex crest straight. Frons and vertex with dense punctures. Median clypeal carina exceeding anterior imaginary line of eyes. Occipital carina present. Dorsal pronotal area weakly papillate. Lateral margin of dorsal pronotal area weakly carinate. Metapostnotal median carina complete, lateral carina almost complete. First median cell of forewing closed.

Description. Holotype ( Fig. 7a ). Female. Body length: 4.02 mm. Forewing length: 2.94 mm.

Color. Head black; mandible dark castaneous, teeth light castaneous; antenna yellow, darken distad. Mesosoma black; legs yellow, coxae and femora darker; tegula castaneous. Forewing hyaline tinged with yellowish; veins yellowish; prestigma and pterostigma light castaneous.

Pubescence. Body with sparse white setae. Antenna with dense white appressed setae. Forewing with dense short yellowish setae.

Head ( Figs 7b, 7c, 7d ). Head wider than long, LH 0.94 × WH. Mandible with four teeth; upper most tooth smallest with apex rounded; lower three teeth with apex sharp. Median clypeal lobe triangular; Median clypeal carina exceeding anterior imaginary line of eyes. Antennomeres II–VI in ratio of 107:100:88:86: 86 in length and 1.84, 1.47, 1.16, 1.08, 1.09 × wide respectively; antennal scrobal carina present. Frons coriaceous with dense large punctures separate at most 1.50 × its diameter. WF 1.66 × LE. LE 2.68 × DEV.Anterior ocellus passing supra-ocular line 0.22 × DAO; POL 1.26 × AOL; OOL 1.40 × WOT; DPV 0.18 × DAO. Vertex coriaceous with dense large punctures separate at most 1.50 × its diameter; vertex crest nearly straight. Occipital carina present. Sides of head behind eyes converging posteriorly. Malar line between mandible and eye present. Gena coriaceous with larger punctures than frons; ventral area of gena coriaceous with dense punctures.

Mesosoma ( Figs 7e, 7f ). Dorsal pronotal area coriaceous, weakly papillate, about one third of width; lateral margin weakly carinate, posterior margin almost straight; cervical pronotal area coriaceous and papillate; pronotal flange visible in dorsal view, almost vertical in lateral view; lateral pronotal area coriaceous. Mesoscutum coriaceous with punctures separate 1.0–3.0 × its diameter, weakly coriaceous anteriorly; parapsidal furrow complete. Mesoscutellum coriaceous with punctures separate at most 3.0 × its diameter; mesoscutellar pit oval, mesoscutellar groove weak with distinct median carina. Metapectal-propodeal disc wider than long; metapostnotum coriaceous with short oblique rugulae laterally; basal triangular elevated area present; metapostnotal median carina complete, metapostnotal lateral carina extending to four-fifths of metapectal-propodeal disc, converging posteriorly; dorsal propodeal area imbricate, depressing laterally; lateral marginal carina of metapectal-propodeal complex complete, transverse posterior carina of metapectal-propodeal complex curved, medially incurved; propodeal declivity coriaceous; anterior metapleural area shiny, metapleural line with three pits; lateral surface of metapectal-propodeal complex coriaceous, upper one third with short irregular rugulae. Propleuron coriaceous. Lateral surface of mesopleuron coriaceous and convex, mesopleural dentate process absent, upper mesopleural fovea and mesopleural pit developed; posterolateral area shiny; ventral surface of mesopleuron coriaceous and papillate, subpleural signum present, mesodiscrimen present.

Forewing ( Fig. 7g ). First median cell subtriangular; Rs 2 v 1.76 × M 2 v; 2r-rs&Rs 2 v not arched apically.

Metasoma. Abdominal terga shiny with sparse tiny punctures; longitudinal sulcus of second abdominal tergum extending to half of second abdominal tergum and fovea-like basally. Abdominal sterna shiny; second abdominal sternum with longitudinal carina medially and short rugulae apically; third and fourth abdominal sterna weakly coriaceous; third to sixth abdominal sterna with sparse punctures apically.

MALE unknown.

Variation. Body length: 4.02–4.15 mm; forewing length: 2.82–2.94 mm. Rs 2 v 1.55–1.76 × M 2 v.

Type material. Holotype ♀ ( ZJUH), China, Yunnan Province, Xishuangbanna, Jinghong, Guanping Town monsoon forest, 832± 12m, 22°13ˊ21.2̋N, 100°53ˊ15.1̋E, 21.vii.2012, No.201900306 . Paratype: 1♀ ( ZJUH), China, Yunnan Province, Xishuangbanna, Jinghong, Mengla country, Bubeng village monsoon forest, 823± 35m 21°36ˊ40.4̋N, 101°34ˊ25.6̋E, 11.vii.2012, No.201900307 ; 1♀ ( ZJUH), China, Yunnan Province, Xishuangbanna, Jinghong, Mengla country, Nanshahe River monsoon forest, 826± 43m 21°36ˊ12.1̋N, 101°34ˊ23.9̋E, 14.vii.2012, No. 201900310 .

Distribution. China (Yunnan).

Etymology. The specific name “ occiputalis ” which comes from the Latin words “occiput” refers to the presence of occipital carina.

Comments. This new species O. occiputalis sp. nov. can be distinguished from other species by having occipital carina present ( Fig. 7b ), dorsal pronotal area papillate and first median cell of forewing right triangular ( Fig. 7g ).

Figures

FIGURE 7. Odontepyris occiputalis sp. nov. holotype, ♀. a. Habitus lateral; b. Head, frontal view; c. Mandible; d. Antenna; e. Mesosoma and Metapectal-propodeal complex, dorsal view; f. Mesosoma, lateral view; g. Forewing. Scale bars: 0.15 mm for b, c, d, d, e, f; 0.20 mm for g; 0.30 mm for a.