Hylaeus (Nesoprosopis) koreaensis Chen and Xu

Chen, Huan & Xu, Huanli, 2012, Three new species of the genus Hylaeus (Hymenoptera: Colletidae) from South Korea, Zootaxa 3419, pp. 62-68 : 66

Hylaeus (Nesoprosopis) koreaensis Chen and Xu , sp. nov.

( Figs. 13–18 , 21)

Diagnosis. Male: small size; marks on face well developed; propodeal TRN, OBL and lateral carinae absent, anterior portion of propodeal with longitudinal wrinkles; scape slightly turbinate broadened; apical process of S8 elongate, bilobate, with long hairs.

Description. Male (Holotype). Measurements: BL 3.63mm; WL 2.57mm; HL 1.69mm; HW 1.84mm; CI 1.37; SI 2.0.

Coloration: Black. Marks on face whitish as follows: clypeus except anterior tentorial pit; lateral face marks subtriangular, ending obtusely along margins of eyes slightly below the level of lower margins of antennal sockets; most portion of supraclypeal area. The following yellowish: lateral mark on scape; linear marks on lateral portions of pronotal collar; lateral mark on fore tibia, basal 1/3 of middle tibia, basal 1/3 of hind tibia, most parts of all basitarsi. Underside of flagellum brown; pronotal lobe blackish brown; tegula brown; all mediotarsus and distitarsus light brown; veins and stigma of wings brown.

Structure: Scape slightly turbinate broadened; face slightly shiny with minute to fine punctures; clypeus longitudinally lineolate-reticulate, lower portion slightly convex, with minute close punctures; paraocular area longitudinally lineolate-reticulate with indistinct punctures, upper portion with subcontiguous punctures, gently merging into frons; punctures along eye margins larger and sparser; facial fovea indistinct; gena narrower than eyes in lateral view, moderately shiny with fine and sparse to scattered punctures; pronotal collar sligntly convex at lateral portion, thin in the middle; mesoscutum slightly convex, moderately shiny with minute to fine and close punctures; scutellum weakly convex, moderately shiny with fine and close punctures which are larger and sparser than those on mesoscutum; metanotum slightly shiny; mesopleuron moderately shiny with minute to fine and close to sparse punctures; propodeal TRN, OBL and lateral carinae absent, anterior portion of propodeal with longitudinal wrinkles, punctures on lateral area minute to fine and sparse to scattered; T1 shiny with particularly minute and scattered shallow punctures, T2 and following terga moderately shiny with closer punctures.

Pilosity: Hairs white; hairs on vertex dense and short; hairs on apical margin of clypeus short and very sparse; hairs on inner side of scape longer; hairs on mesoscutum and scutellum extremely short and sparse; hairs on metanotum longer; hairs on mesopleuron much longer and denser; hairs on T1 nearly absent, T2 and the following terga longer and denser.

Terminalia: See Figs. 13–18 . Apical lobe of S7 reduced and without hairs. Apical process of S8 elongate, bilobate, with long plumose hairs.

Type material. Holotype: 13, South Korea, Gangwondo, Pyeongchang Yongpyeong-myeon Nodong-li Nodong Valley 900m, 26.VIII.2006, Denis Michez.

Type material deposited in the entomological museum of China Agricultural University, Beijing, China.

Distribution. South Korea

Etymology. From the name of country in which the type species distributed.

Figures

FIGURES 13 – 18. Male terminalia of Hylaeus (Nesoprosopis) koreaensis sp. nov. 13. Ventral view of genitalia; 14. Dorsal view of genitalia; 15. Lateral view of genitalia; 16. Dorsal view of S 7; 17. Ventral view of S 8; 18. Lateral view of S 8. Scale bar = 1 mm.