Odontepyris xiaoi 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 : 514-516

Odontepyris xiaoi Wang, He & Chen sp. nov.

Fig. 8

Diagnosis. Male. Head wider than long, vertex crest slightly incurved. Median clypeal carina not exceeding anterior imaginary line of eyes. Dorsal pronotal area weakly papillate. Lateral margin of dorsal pronotal area not carinate. Mesopleural dentate process present but weak. Metapostnotal median carina complete, lateral carina absent. First median cell of forewing opened; Rs+M 2 v present.

Description. Holotype ( Fig. 8a ). Male. Body length: 4.82 mm.

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

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

Head ( Figs 8b, 8c, 8d ). Head wider than long, LH 0.86 × WH. Mandible with four apical teeth; upper two with apex slightly rounded; lower two subtriangular. Median clypeal lobe subtriangular with apex slightly rounded; median clypeal carina not exceeding anterior imaginary line of eyes. Antennomeres II–VI in ratio of 131:152:125:123: 124 in length and 1.75, 1.92, 1.45, 1.40, 1.53 × wide respectively; antennal scrobal carina present. Frons coriaceous with punctures separate less than 1.5 × its diameter. WF 1.45 × LE. LE 2.59 × DEV. Anterior ocellus passing supra-ocular line 1.36 × DAO; POL 1.13 × AOL; OOL 1.57 × WOT; DPV 1.33 × as wide as DAO. Vertex coriaceous with punctures separate less than 1.5 × its diameter; vertex crest slightly incurved. Sides of head behind eyes parallel. Occipital carina absent. Malar line between mandible and eye present. Gena shiny with punctures.

Mesosoma ( Figs 8e, 8f, 8g ). Dorsal pronotal area coriaceous, weakly papillate, almost half of width; lateral margin not carinate, posterior margin straight; cervical pronotal area coriaceous, weakly papillate; pronotal flange invisible in dorsal view; lateral pronotal area coriaceous. Mesoscutum coriaceous with punctures separate more than 2.0 × its diameter; parapsidal furrow complete. Mesoscutellum shiny with less punctures. Metapectal-propodeal disc wider than long; metapostnotum coriaceous with irregular rugulae, basal triangular elevated area absent; metapostnotal median carina complete, lateral carina absent; dorsal propodeal area imbricate, depressing laterally; lateral marginal carina of metapectal-propodeal complex complete, transverse posterior carina almost straight; propodeal declivity coriaceous; anterior metapleural area shiny with sparse punctures, metapleural line with three pits; lateral surface of metapectal-propodeal complex coriaceous, upper one fourth with short irregular rugulae. Propleuron coriaceous. Lateral surface of mesopectus coriaceous with dense large punctures, elevated, mesopleural dentate process present but weak, mesopleural fovea and mesopleural pit developed; ventral surface of mesopectus coriaceous, weakly papillate.

Forewing ( Fig. 8i ). First median cell opened; Rs+M 2 v 0.5 × M 2 v; Rs 2 v 1.94 × M 2 v; 2r-rs&Rs 2 v slightly arched apically.

Metasoma ( Figs 8i, 8j, 8k ). Abdominal terga shiny with shallow tiny punctures; longitudinal sulcus of second abdominal tergum present and short; second to fifth abdominal terga weakly coriaceous basally. Abdominal sterna shiny; second abdominal sternum coriaceous with longitudinal carina; third abdominal sternum papillate; fourth and fifth sterna with sparse punctures; posterior margin of fifth abdominal sternum with pair of tufted setae; posterior margin of hypopygium medially invaginated, with pair of median lobes as well as pair of lateral lobes ( Fig. 8j ). Genitalia ( Figs 8k, 8l ): paramere evenly broad with apex narrow, dorsal surface with long setae ( Figs 8j, 8k ); digitus short with apex pointed, with long setae in ventral view ( Fig. 8l ); cuspis twisted with apex pointed almost touch digitus ( Figs 8k, 8l ); aedeagus bottle-shaped ( Fig. 8k ).

FEMALE unknown.

Type material. Holotype ♂ ( IZCAS), China, Yunnan Province, Bannahe Reserve, Mengsong Xiang, Danuoyou , 770m, 22˚11ˊ57˝N, 100˚36ˊ33˝E, 16.iii.2009, LZ. Meng, No. IOZ(E)2059136.

Distribution. China (Yunnan).

Etymology. This species is named in honor of Professor Gangrou Xiao (Forest Research Institute, Chinese Academy of Forestry, Beijing) who is the first Chinese entomologist to study the Bethylidae in China.

Comments. This species can be distinguished from other species of this genus by having median clypeal lobe distinctly protuberant and narrow ( Fig. 8c ), median clypeal carina not exceeding anterior imaginary line of eyes ( Fig. 8c ) and mesopleural dentate process present but weak ( Fig. 8g ).

Figures

FIGURE 8. Odontepyris xiaoi sp. nov. holotype, ♂. a. Habitus lateral; b. Head, frontal view; c. Median clypeal carina; d. Mandible; e. Antenna; f. Pronotum, dorsal view; g. Mesosoma, lateral view; h. Metapectal-propodeal complex, dorsal view; i. Forewing; j. Hypopygium; k. Genitalia, dorsal view; l. Genitalia, ventral view. Scale bars: 0.15 mm for a–l.