Odontepyris acutus Lim, 2013

Lim, Jongok & Lee, Seunghwan, 2013, Taxonomy of the family Bethylidae (Hymenoptera: Chrysidoidea) from Cambodia and adjacent countries. I. Genus Odontepyris Kieffer (Bethylidae: Bethylinae) with four new species and two new records, Journal of Natural History (J. Nat. Hist.) 47 (31 - 32), pp. 2017-2038 : 2019-2022

Odontepyris acutus Lim , sp. nov.

( Figure 1 A–G)

Type examined

Holotype. Female, C [entral]C[ardamom]P[rotected]F[orest], Osom commune, Pursat, CAMBODIA, 12 ◦ 03 ′ 31.1 ′′ N, 103 ◦ 14 ′ 37.3 ′′ E, Alt. 553 m, 1–18 June 2010, MT., K. Masphal leg. ( SNUM).

Description

Holotype. Female. TL 4.0 mm. LFW 2.7 mm.

Colour

Head. Black; mandible dark castaneous with apical margin castaneous; maxillary, labial palpi yellowish; antenna castaneous, distal half of scape, pedicel, flagellomeres I, II more castaneous than other flagellum.

Mesosoma

Black; legs dark castaneous except trochanter, tibia, tarsi yellowish; tarsal claw castaneous; wings hyaline, tegula castaneous, veins yellowish except prestigma, stigma dark castaneous, other veins yellowish.

Metasoma

Dark castaneous.

Morphology

Head ( Figure 1B, F ). Wider than long, 0.9 times as long as wide. Mandible with four apical teeth, uppermost one longest, three lower ones small. Clypeus coriaceous; median lobe with sharp angle apically, LC 0.8 times as WCB; median carina complete, extending back into frons and straight in full face view, lateral lobes inconspicuous. Malar groove present. Antenna short, not surpassing posterior margin of pronotal disc; scape, pedicel, flagellomere I–III, XI in ratio of 2.7: 1.1: 1.1: 1.0: 1.0: 1.1 in length and 2.5, 1.4, 1.4, 1.1, 1.1, 1.7 times as long as wide, respectively; flagellar with dense, subappressed and short pubescence with few erect setae. Antennal scrobe carinate. Compound eye slightly protuberant, glabrous. Frons coriaceous with large, shallow punctures, up to 0.03 mm wide. LE 1.4 times as long as OOL. WF 3.5 times as wide as WOT. WF 1.4 times as long as LE. WH 1.5 times WF. Ocelli small, anterior ocellus slightly surpassing imaginary top eye line; frontal angle of ocellar triangle right; distance from posterior ocelli to vertex crest 1.0 times as wide as DAO. Vertex crest broadly concave. Temple profile parallel in dorsal view, with corner convex. Occipital carina absent. WG 1.0 times as wide as LAntI. Ventral surface of head coriaceous with punctures as frons and vertex; median suture inconspicuous.

Mesosoma ( Figure 1 C–E, G)

Pronotal disc 0.3 times as long as wide; pronotal collar short and transversely narrow; disc coriaceous, papillate; anterolateral corner rounded; lateral margin without granule; posterior margin concave medially. Mesoscutum coriaceous with punctures as frons; parapsidal furrow complete, conspicuous at half posteriorly; lateral margin concave laterally. Scutellum coriaceous with punctures less than frons and mesoscutum; scutellar pit elliptical, each pit distant from another by twice the maximum diameter; scutellar groove with three short longitudinal carinae. Metanotum narrow medially, median region elevate. Propodeal disc short, 0.5 times as long as wide; three discal carinae present, median discal carina reaching transverse carina; submedian discal carina reaching basal two-thirds of LPD; sublateral carina absent; lateral carina present, convex laterally; posterior carina present, angulate medially; basal triangle area elevate, foveolate; basal half between median and submedian discal carina rugulose, depressed; sublateral area alutaceous; posterior margin canaliculate with groove along with transverse carina. Lateral surface of propodeum mainly imbricate, rugulose dorsally, foveolate posteriorly. Propodeal declivity completely imbricate without median carina; lateral and lower carina conspicuous. Mesopleuron with subtegular groove large, foveolate; dentate process not protuberant; mesopleural fovea large, deep, circular; lateral and ventral surface rugose; posterior surface imbricate. Fore wing with closed areolet, 2.0 × as long as wide; Rs vein 2.0 times as long as M vein; prestigma continuous with stigma; posterior stigmal margin concave; R vein slightly curved. Hind wing with five hamuli. Tibia with one tibial spur; claws bifid.

Metasoma

Petiolate. Each tergite smooth except anterior surface weakly coriaceous. Sternite weakly coriaceous without punctures; sternite II not papillate.

Distribution

Cambodia.

Etymology

The specific Latin name refers to the sharply developed clypeal lobe.

Remarks

This species is similar to O. hainanus Xiao et Xu from Hainan (Southern China) by having coxa and femora black; clypeal lobe sharply angulate apically; frons, vertex, pronotal disc and mesonotal disc microreticulate with shallow punctures; propodeal disc with distinct discal carinae. However, O. acutus sp. nov. can be distinguished by having vertex crest distinctly concave (straight in O. hainanus ); one pair of submedian discal carinae reaching two-thirds as LPD (reaching transverse carina in O. hainanus ); scape, pedicel and flagellomere I with shorter ratio in length and width, 2.5, 1.4, 1.4 times as long as wide, respectively (2.8, 1.8, 1.8 times as long as wide in O. hainanus ); frontal angle of ocellar triangle right (acute in O. hainanus ).

Figures

Figure 1. Odontepyris acutus Lim, sp. nov. holotype (female). (A) whole body; (B) head; (C) mesopleuron; (D) pronotum and mesonotum; (E) propodeum; (F) clypeus and mandible; (G) fore wing. Scale bars: 0.20 mm for (E); 0.30 mm for (B–D, F); 1.00 mm for (A, G).