Areotetes albiferus Li & van Achterberg

Li, Xi-Ying, Achterberg, Cornelis van & Tan, Ji-Cai, 2013, Revision of the subfamily Opiinae (Hymenoptera, Braconidae) from Hunan (China), including thirty-six new species and two new genera, ZooKeys 268, pp. 1-186 : 21-23

Areotetes albiferus Li & van Achterberg sp. n. Figs 32-41

Type material.

Holotype, ♂ (ZUH), "S. China: Hunan, nr Zhangjiajie, Badagong Mts, Bamaoxi, 2-3.VI.2009, 540 m, Xi-Ying Li, RMNH’09”.

Diagnosis.

Second metasomal tergite distinctly striate medially (Fig. 35); second metasomal suture widely crenulate; antenna of ♀ unknown, probably apical third pale yellowish as in male (Fig. 36); head dorsally (except stemmaticum and surroundings) yellow; face yellowish-brown; frons with pair of small depressions above antennal sockets; pronotum short and vertical; medio-posterior depression of mesoscutum small and deep (Fig. 34); precoxal sulcus smooth except for some crenulae (Fig. 32); vein 3-SR of fore wing about 1.7 times as long as vein 2-SR and nearly straight (Fig. 33); vein m-cu of fore wing angulate with vein 2-CU1.

Description.

Holotype, ♂, length of body 1.8 mm, of fore wing 2.1 mm.

Head. Antenna with 21 segments and 1.2 times as long as fore wing (Fig. 32); length of third segment 1.3 times fourth segment, length of third, fourth and penultimate segments 4.7, 3.7, and 2.7 times their width, respectively (Fig. 36); length of maxillary palp 1.3 times height of head; labial palp segments elongate (Fig. 32); occipital carina moderately close to hypostomal carina and dorsally absent (Fig. 40); median groove behind stemmaticum present; hypostomal carina narrow; length of eye in dorsal view 3.4 times temple; frons flat and glabrous medially, smooth and laterally convex and largely glabrous; face smooth, medially broadly elevated (Fig. 38); width of clypeus 1.6 times its maximum height and 0.4 times width of face, clypeus convex, smooth and its ventral margin not differentiated and concave (Fig. 38); hypoclypeal depression medium-sized (Fig. 38); mandible convex (Fig. 40).

Mesosoma. Length of mesosoma 1.5 times its height; dorsal pronope absent (Fig. 41); pronotal side smooth, but medial groove with ventral oblique carina posteriorly and a short carina perpendicularly connected to it and posterior groove obsolescent (Fig. 32); epicnemial area smooth dorsally; precoxal sulcus only medially distinctly impressed, with few short crenulae (Fig. 32); rest of mesopleuron smooth; pleural sulcus smooth; mesosternal sulcus narrow and finely crenulate; notauli absent on disc, except for a short crenulate part anteriorly (Fig. 34); mesoscutum glabrous; medio-posterior depression of mesoscutum rather small, deep (Fig. 34); scutellar sulcus moderately crenulate; scutellum smooth and flat; dorsal surface of propodeum largely smooth except for medio-longitudinal carina and a strong transverse carina behind it, posteriorly areolate (Fig. 35).

Wings. Fore wing (Fig. 33): pterostigma triangular; 1-R1 reaching wing apex and 1.4 times as long as pterostigma; r:3-SR:SR1 = 1:18:37; 2-SR:3-SR:r-m = 11:18:4; r widened; 1-M nearly straight; SR1 weakly curved; m-cu slightly postfurcal; cu-a slightly postfurcal and 1-CU1 widened; first subdiscal cell closed, CU1b short; apical quarter of M+CU1 sclerotized. Hind wing (Fig. 33): M+CU:1-M:1r-m = 15:13:7; cu-a straight; m-cu absent.

Legs. Length of femur, tibia and basitarsus of hind leg 4.2, 8.0 and 4.3 times as long as wide, respectively; setae of hind femur and tibia moderately long (Fig. 37).

Metasoma. Length of first tergite 1.2 times its apical width, its surface evenly convex medially and with longitudinal (medially irregular) costae and dorsal carinae united in its anterior 0.3 and up to apex (Fig. 35); second tergite medially longitudinally costate (Fig. 35); second suture widely crenulate (Fig. 35); third and following tergites smooth.

Colour. Dark brown; apical third of antenna pale (3 penultimate segments pale yellowish, apical and other segments pale brownish; Fig. 36); palpi, face, mandible, malar space, tegulae, legs (but middle and hind tarsi somewhat brownish), apex of third-seventh tergites and metasoma ventrally whitish or pale yellowish; scapus, remainder of head (but stemmaticum and surroundings dark brown), prothorax, mesopleuron and mesosternum yellow; pterostigma and veins mainly brown; wing membrane subhyaline.

Molecular data. None.

Distribution.

*China (Hunan).

Biology.

Unknown.

Etymology.

Name derived from “albus” (Latin for “white”) and “fero” (Latin for “carrying”), because of the whitish mandibles and the pale apex of the antenna.

Notes.

Does not run in the key by Chen and Weng (2005) to any species of the group with a carinula on the hind tibia.