Pediobius claviger ( Thomson, 1878 )

Cao, Huan-Xi, Salle, John La & Zhu, Chao-Dong, 2017, Chinese species of Pediobius Walker (Hymenoptera: Eulophidae), Zootaxa 4240 (1), pp. 1-71 : 36-37

16. Pediobius claviger ( Thomson, 1878)

( Fig. 15 )

Pleurotropis (Rhopalotus) clavigera Thomson, 1878: 256 ; ♀. Lectotype ♀, LUZN, not examined; designated by Hansson, 1991: 35.

Pediobius claviger ( Thomson, 1878) , Graham, 1963: 199.

Diagnosis. Female clava very broad and almost as long as combined length of three funicular segments, and male clava as usual and not broader than funicle ( Figs 15 c–d). Female gaster long-ovate, nearly 2× as long as broad, pointed apically; Gt1 slightly surpassing the basal 1/3 with posterior margin protruding backwards medially ( Fig.

15a). Male gaster very short, Gt2–7 almost concealed by large Gt1, with the posterior margin distinctly protruding medially ( Fig. 15 b).

Material examined. CHINA, Beijing: 1♀, Badaling , 16.V.1984, coll. Da-Wei Huang ; Hubei: 1♀, Xuanen , 03.VIII.1989, coll. Da-Wei Huang ; Jilin: 1♀, Changbai Mountains , 24.VII.1990, coll. Da-Wei Huang ; 3♀ 1♂, Liaoyuan, Baiquan , VII.1979, coll. Guang-An Yang ; 1♀, Changchun, Changchun Institute of Forest , VII.1980, coll. Yu-Ying Qiu .

Biology. Unknown.

Distribution in China. Beijing, Hubei, Jilin.

Remarks. Newly recorded from China. Species of the foliorum -group has female with clavate antenna but male with an usual antenna that clava not strikingly broader than funicle (e.g., Figs 15 c–d). Based on this, P. claviger is closely allied to P. foliorum and the American species P. magniclavatus Peck. It is very likely that P. magniclavatus also belongs to the foliorum -group based on female clavate antenna and high step-like plica of propodeum. The gaster of P. claviger or P. magniclavatus is about 2× as long as broad, and that of P. foliorum subcircular. Clava of P. claviger ( Bouček 1965a, Fig. 15 ) and P. magniclavatus ( Peck 1985, Fig. 6 ) are as long as the combined length of three funicular segments, while that of P. foliorum is as long as the combined length of two preceding funicular segments. Pediobius claviger differs from P. magniclavatus by characters as follows. Pediobius claviger has the notaular depressions narrowly triangular and Gt1 slightly surpassing the basal third of gaster. Whereas the latter species has notaular depressions large and Gt1 reaching mid-length of gaster ( Bouček 1965a; Peck 1985). Differences between P. claviger and P. foliorum are given in the key.

Figures

FIGURE 6. Pediobius crassicornis (Thomson, 1878). a: female, body in dorsal view; b: female, body in lateral view; c: male, body in dorsal view; d: female, body in lateral view; e: female, fore wing. Scale bar: 0.5 mm.

FIGURE 15. Pediobius claviger (Thomson, 1878). a: female, body in dorsal view; b: male, body in dorsal view; c: female, body in lateral view; d: male, head (to show antenna); e: female, fore wing. Scale bar: 0.5 mm.