Pristepyris tainanensis (Terayama, 1995)

Liao, Hauchuan, Terayama, Mamoru & Eguchi, Katsuyuki, 2022, Revision of Taiwanese and Ryukyuan species of Pristepyris Kieffer, 1905, with description of a new species (Hymenoptera, Bethylidae), ZooKeys 1102, pp. 1-42 : 1

Pristepyris tainanensis (Terayama, 1995)

Fig. 10

Acrepyris tainanensis Terayama, 1995: 143, figs 11-14. Holotype (male, HUS), type loc.: Raisha, Taiwan; paratype (male, HUS), type loc.: Kanshirei; paratype (male, NIAES), type loc.: Kuanzuling, Tainan Hsien. Pristepyris tainanensis : Azevedo et al. 2018: 104 (genus transfer).

Male diagnosis.

TL ≈ 8.6 mm. HL/HW × 100 = 103. Frons and vertex with shallow foveolae (ca. 0.05-0.06 mm in diameter), of which intervals are smooth and shining and narrower than diameter of foveolae. Anterior clypeal margin nearly straight medially. Mandible with five apical teeth. Transverse pronotal carina present. Cervical pronotal area in lateral view forming an angulate corner. LP/WP = 0.96. Metapostnotal median carina not complete posteriorly.

Female diagnosis.

Unknown.

Male redescription.

Full description was given by Terayama (1995). Additional information as below.

Head. Frons and vertex with deep foveolae (ca. 0.05-0.06 mm in diameter), of which intervals are smooth and shining; intervals in vertex and frons usually narrower than diameter of foveolae. Occipital carina present. Median portion of clypeus roundly produced anteriad; median clypeal carina moderately distinct, almost reaching anterior margin; anterior clypeal margin truncate, nearly straight medially. Compound eye large and convex. Mandible with five teeth.

Mesosoma. Dorsal area of pronotum smooth and shining, with deep foveolae; distinct transverse carina(e) present (arrow in Fig. 10D ); cervical pronotal area in lateral view forming an angulate corner (arrow in Fig. 10C ). Mesopleuron elongate; anterior, upper and lower fovea distinct; acropleural area smooth and shining. Mesopleural pit absent. Lateral face of metapectal-propodeal complex irregularly rugose. Metapectal-propodeal complex in dorsal view with LP/WP = 0.96, with lateral margins subparallel and slightly convex; metapostnotal median carina distinct, but incomplete posteriorly; submedian rugae irregularly running and incomplete posteriorly; sublateral margin incomplete posteriorly; posterior transverse margin weak; dorsomedian and dorsolateral faces weakly rugoso-scabrous; median portion of propodeal declivity transversely rugoso-scabrous.

Female description.

Unknown.

Taxonomic remarks.

This species is most similar to Pristepyris ishigakiensis. The two species share two remarkable features: mandible is five-toothed; cervical pronotal area in lateral view forming an angulate corner (arrow in Figs 6D , 10C ). However, no metasomal and genital morphology is given in the original description of P. tainanesis and the present authors had no opportunity to dissect and examine the male genitalia of the type material. Therefore, it is impossible to conclude whether the two morphospecies are conspecific or not and P. tainanensis is tentatively treated as an independent species. The identity will be discussed when the “topotypes” of P. tainanesis become available in the future.

Distribution and habitat.

Southern Taiwan.

Figures

Figure 6. Pristepyris ishigakiensis, male, A-E, G, H, JI 170808 _ 34, F, TH 190717 _ 42 A head in full-face view B antenna (right) C mandible D mesosoma in lateral view; arrow indicating an angulate corner present on cervical pronotal area E mesosoma in dorsal view; arrows indicating posterior transverse margin extending to spiracle F mesosoma in dorsal view; arrow indicating transverse pronotal carina present G forewing H hindwing. Scale bars: 0.5 mm.

Figure 10. Pristepyris tainanensis, male, paratype A head in full-face view B mandible C mesosoma in lateral view (mirror-reversed); arrow indicating an angulate corner present on cervical pronotal area D mesosoma in dorsal view; arrow indicating transverse pronotal carinae present. Scale bars: 0.5 mm.