Tetralonioidella damenglongensis Niu & Zhu, 2017

Niu, Zeqing, Yuan, Feng & Zhu, Chaodong, 2017, Taxonomic study of the genus Tetralonioidella Strand from China (Hymenoptera: Apidae: Melectini), Zoological Systematics 42 (4), pp. 418-445 : 425

Tetralonioidella damenglongensis Niu & Zhu , sp. nov. ( Fig. 4 )

Diagnosis. The species is different from other species of Tetralonioidella by pubescence on mesosomal terga pale gray intermixed with blackish pubescence, T1–T3 with yellowish-brown apical hair bands, and T4 with white apical hair band. And the pubescent color-pattern on metasomal terga is different from other species of Tetralonioidella .

Description. Female. BL 9.8mm ( Fig. 4a ); head broader than long, HW: HL= 66: 45 ( Fig. 4b ); gena distinctly narrower than eye, GW: EW = 9: 15; width of metasoma slightly broader than the width between the tegulae, MtW: MsW = 78: 74. Clypeus broader than long ( Fig. 4b ); apical margin of labrum obviously concave ( Fig. 4c ); antenna long, reaching behind margin of tegula, scape conically broadened, longer than F1 and F2 together, flagellomere equal in breadth, F1 slightly longer than broad, F2 long than broad, nearly twice as long as broad, F3 equal in length with F4, about 1.5 times as long as broad, F5–F9 equal in length, about 1.2 times as long as broad, F10 rounded apically, equal in length with F3, about 1.5 times as long as broad ( Fig. 4d ); fore wing with distinct numerous papillae apically ( Fig. 4e ); scutellar spines slender, tapering sharp apically, barely visible between pubescence; inner ramus of hind tarsal claw claw-like, arolium present ( Fig. 4h ). Clypeus black except apical margin yellowish brown ( Figs 4b–c ); basal half part of mandible yellowish-brown, apical half part reddish ( Fig. 4c ); labrum black except apical 1/5 part yellowish brown ( Fig. 4c ); antenna dark blackish-brown beneath ( Fig. 4d ); tegula yellowish-brown ( Fig. 4f ); all legs blackish-brown; hind tarsal claw reddish apically ( Fig. 4h ). Scutum pubescence pale gray, intermixed with blackish hairs ( Figs 4a, f ); clypeus covered short pale white hairs, periphery of antennal socket, supraclypeal area, paraocular area and front surface of scape covered long pale white hairs ( Fig. 4b ); vertex, scutum, scutellum, metanotum covered with pale gray hairs, intermixed with blackish hairs ( Figs 4a, d, f ); genal area, episternum covered yellowish-white hairs ( Fig. 4a ); T1–T3 with short, light yellowish-brown hair bands before marginal zones, T4 with white hair band before marginal zone, disc of T1–T3 covered yellowish-brown hairs, intermixed black hairs, disc of T4 covered black hairs ( Fig. 4g ).

Male. Unknown.

Material examined. Holotype. ♀, China, Yunnan, Xishuangbanna, Damenglong (21º34′N, 100º41′E; elev. 650m), 22.IV. 1958, Chunpei Hong.

Distribution. China (Yunnan).

Etymology. The type location Damenglong (Yunnan, China) is given as the specific name.

Figures

Figure 4. Tetralonioidella damenglongensis Niu & Zhu, sp. nov., female. a. Body, lateral view. b. Head, frontal view. c. Labrum, frontal view. d. Antenna. e. Fore wing, showing the papillae. f. Mesosoma, dorsal view. g. Metasoma, dorsal view. h. Claw, showing the inner ramus. Scale bars: a, b, c, d, e, f, g=1mm; h=0.5mm.