Foenobethylus

Liu, Jingxian, Chen, Huayan & Xu, Zaifu, 2011, Two new species of the genus Foenobethylus Kieffer 1913 (Hymenoptera: Bethylidae) from China with a key to the known species, Zootaxa 2806, pp. 53-59 : 54

Key to species of genus Foenobethylus

(based on Várkonyi & Polaszek 2007)

1. Hind femur with a single blunt spine slightly distal of the middle; hind trochanter without ventral spine or tooth. Philippines....................................................................................... F. gracilis Kieffer

- Hind trochanter with a ventral spine, or if without, then hind femur with two spines or teeth.......................... 2

2. Hind trochanter without ventral spine; fore femur moderately swollen, at least 2.5 times as long as wide................. 3

- Hind trochanter with a ventral spine; fore femur distinctly swollen, less than 2.1 times as long as wide.................. 5

3. Distance between posterior margin of compound eye and occipital carina as long as length of compound eye in dorsal view; eighth sternum with distal margin narrowly emarginated; terminal segment of maxillary palpus over 4.0 times longer than wide. Brunei.............................................................. F. bidentatus Várkonyi et Polaszek

- Distance between posterior margin of compound eye and occipital carina longer than length of compound eye in dorsal view; eighth sternum with distal margin strongly emarginated; terminal segment of maxillary palpus less than 4.0 times longer than wide................................................................................................ 4

4. Head in dorsal view 1.42 times as long as wide; terminal segment of maxillary palpus 2.5 times as long as wide; median carina of propodeum incomplete, reaching 0.6 length of propodeal disc. China (Hainan)................. F. h a i n a n e n s i s sp. nov.

- Head in dorsal view 1.16 times as long as wide; terminal segment of maxillary palpus 3.5 times as long as wide; median carina of propodeum complete. China (Zhejiang)............................................... F. zhejiangensis sp. nov.

5. Pronotum with anterior horizontal flange medially very narrow; hind trochanter with a needle-like long spine below; hind femur with a ventral oblique furrow; terminal segment of maxillary palpus less than 3.0 time longer than wide. Thailand.......................................................................... F. emiliacasellae Várkonyi et Polaszek

- Pronotum with anterior horizontal flange medially as broad as laterally; hind trochanter with a tooth or broad spine; hind femur ventrally flattened, without ventral oblique furrow; terminal segment of maxillary palpus over 3.0 time longer than wide.. 6

6. Head strongly narrowing behind; propodeal disc more elongate. Malaysia.............. F. elongatus Várkonyi et Polaszek

- Head only slightly narrowing behind; propodeal disc less elongate. Malaysia........ F. thomascokeri Várkonyi et Polaszek