Craspedomerus ganeshensis Coiffait, 1983

Li, Liang & Zhou, Hong-Zhang, 2010, Taxonomy of the genus Craspedomerus Bernhauer, 1911 (Coleoptera: Staphylinidae: Philonthina) from China, Zootaxa 2506, pp. 1-25 : 14-16

6. Craspedomerus ganeshensis Coiffait, 1983 , first record from China

( Figs. 8 A–E, 12G)

Coiffait, 1983: 169 ( Craspedomerus , type locality: Ganesh Himal, between Salmi and Rupchet, Nepal); Herman, 2001: 2582 ( Craspedomerus , world catalog); Smetana, 2004: 632 ( Craspedomerus , catalog for Palaearctic region).

Material examined. CHINA: Yunnan: 2ɗɗ, 7ΨΨ, Gongshan (27°37´N, 98°36´E), 2100 m, 10.VII.2000, Liang Hongbin collected (IZ-CAS); ɗ, 2ΨΨ, Lushui (26°37´N, 98°36´E), 2100 m, 14.V.2005, Liang Hongbin collected (IZ-CAS); 3ɗɗ, Gaoligongshan (25°59´N, 98°37´E), 2450 m, 15–18.X.1998, Long C. L. collected (IZ-CAS).

Description. Head and pronotum black with slightly bronze-greenish reflex. Antennae black with 7th–11th segments yellow. Elytra fusco-testaceous. Scutellum black. Abdomen black with strongly iridescent reflex, posterior half of tergite VII and entire tergites VIII–X reddish-yellow. Mandibles dark brown. Maxillary and labial palpi and legs reddish-brown.

Body 12.7–14.9 mm long (HPL = 4.49–4.90 mm). Head of rounded quadrangular shape, 1.80–1.96 mm long, 1.96–2.20 mm wide, slightly wider than long (HW:HL = 1.04–1.17). Tempora 0.65–0.74 mm long, almost evenly rounded, densely and coarsely punctate, setiferous; eyes moderately large, slightly protruded, 0.57–0.65 mm long, 0.78–0.88 times as long as tempora. Dorsal surface of head with moderately numerous, large setiferous punctures, becoming sparser toward vertex, vertex largely impunctate; entire head with distinct and profound microsculpture of transverse waves.

Pronotum subquadrate, slightly narrowed anteriad, 2.20–2.45 mm long, 2.04–2.20 mm wide, slightly wider than head (PW:HW = 1.04–1.13), densely and finely punctate, punctures separated by 3–5 times their diameter, narrowly impunctate along midline, surface with distinct and profound microsculpture of oblique, long waves.

Elytra 2.69–2.94 mm long, 2.78–2.94 mm wide, 1.20–1.24 times as long as pronotum, densely and finely punctate, punctures separated by 1–2 times their diameter. Scutellum large, triangular, densely and finely punctate.

Abdomen a little narrowed posteriad, widest 2.45–2.61 mm, tergites densely and finely punctate, at base punctures separated by 2–3 times their diameter, gradually becoming sparser toward apex of each tergite, surface between punctures with dense and fine microsculpture of transverse striae; elevated area between basal lines of tergites III–V almost impunctate.

Male. Sternite VIII with moderately wide, obtusely triangular medio-apical emargination ( Fig. 8 D). Sternite IX with basal portion distinctly asymmetrical, apex deeply emarginate, each lobe bearing two long apical setae ( Fig. 8 C). Tergite X simple, triangular, subrounded at apex, with variable number of apical setae ( Fig. 8 E).

Aedeagus as ( Figs. 8 A–B); underside of each branch of paramere with very small, flat sensory peg setae arranged at subapical portion ( Fig. 12 G).

Female. Sternite VIII without medio-apical emargination. Gonocoxites moderately developed, second gonocoxites each with minute stylus bearing two long apical setae. Tergite X similar to that of male.

Remarks. Coiffait (1983) described this species from Nepal. Craspedomerus ganeshensis is similar to C. glenoides and C. birmanus in having elytra fusco-testaceous and antennae black with 7th–11th segments yellow. Craspedomerus glenoides differs from C. ganeshensis by elytra with a distinctly dark fascia across the middle, tergite VII entirely reddish-yellow (elytra without dark fascia across the middle, basal third of tergite VII black in C. ganeshensis ) and different number and arrangement of the sensory peg setae on the underside of paramere ( Figs. 12 B, G). Craspedomerus ganeshensis can be easily distinguished from C. birmanus by basal third of tergite VII black and legs reddish-brown (tergite VII entirely reddish-yellow and legs dark in the latter species). This species is recorded from China for the first time.

Distribution. China (Yunnan), Nepal.

Figures

FIGURE 8. Craspedomerus ganeshensis Coiffait. A, aedeagus, ventral view; B, aedeagus, lateral view; C, sternite IX of male; D, sternite VIII of male; E, tergite X of male. Scale bars 1 mm.

FIGURE 12. Scanning electron micrographs of the underside of one of the branches of the paramere of Craspedomerus. A, C. sinetuber (Coiffait); B, C. glenoides (Schubert); C, C. beckeri Bernhauer; D, C. violaceipennis Cameron; E, C. zhangi Li & Zhou sp. n.; F, C. giganteus Li & Zhou sp. n.; G, C. ganeshensis Coiffait; H, C. gongshanus Li & Zhou sp. n.; I, C. cyanipennis Scheerpeltz. Sensory peg setae are indicated with arrows.