Key to world species of Pentelicus (Females)

(Modified from Zhang, Xiao & Huang 2005)

1. Frontovertex with large, deep setigerous punctures separated by their own diameter or less (Fig. 8)..................... 2

- Frontovertex with sparse, shallow punctures separated by more than their own diameter (Figs 2, 14)...................3

2. Fore wing hyaline; antenna dark brown except scape honey-yellow [USA]........................ .. P. aldrichi Howard

- Fore wing infuscate behind submarginal vein, along leading margin beyond venation, and faintly in centre of disc (Fig. 10); antenna dark brown with apex of scape and F6 yellow (Fig. 9) [India]........................... .. P . punctatus sp. nov.

3. Antenna with clava distinctly obliquely truncate apically, the truncate part about half or more dorsal length of clava (Fig. 15).....................................................................................................4

- Antenna with clava rounded apically or only apical segment obliquely truncate, the truncate part less than one-third dorsal length of clava (Fig. 3).................................................................................. 8

4. Antennal scape cylindrical, more than 5× as long as wide [China]........................ P. similis Zhang, Xiao & Huang

- Antennal scape flattened, less than 4 × as long as wide (Fig. 15)................................................. 5

5. Body generally orange; scape 2× as long as wide [Australia].................................. P. aeneifrons (Girault)

- Body dark brown to green or blue (Figs 13, 14); scape 3× as long as wide (Fig. 15)................................. 6

6. Scape expanded to greatest extent in apical third [China]........................... P. orientalis Zhang, Xiao & Huang

- Scape evenly, convexly expanded with its maximum width at about middle (Fig. 15)................................ 7

7. Funicle dark brown [India]........................................................ P. bharatensis Hayat & Khan

- Funicle with F6 and F5 ventroapically yellow, and F4 ventrally light brown (Fig. 15) [India]........ P. depunctatus sp. nov.

8. F1 yellow; fore wing infuscate basally and with an infuscate streak below parastigma [USA]......... P. varicornis (Girault)

- F1 brown or ventrally yellow and dorsally brown; fore wing infuscate behind submarginal vein but not behind parastigma..9

9. Scape basally and apically yellowish; F4 and F6 whitish [USA]............................... P. confusus (Ashmead)

- Scape with outer surface basally brown laterally up to midpoint, and inner surface brown in basal half and yellow in apical half (Fig. 3); F1−F5 ventrally yellow and dorsally light brown, F6 fully yellow (Fig. 3) [India].......... .. P. funiculatu s sp. nov.