Leptotrema

Braet, Yves & Achterberg, Cees Van, 2014, A new genus and two new species of Alysiinae (Hymenoptera: Braconidae) from Papua New Guinea, Zootaxa 3869 (2), pp. 189-197 : 194

Key to species of the genus Leptotrema van Achterberg

1. Fore femur with one wide triangular tooth ventrally; fore and middle femora without minute pegs latero-ventrally; antenna of female with 18–20 segments (male up to 23); Europe, China (Fujian)..................... L. dentifemur (Stelfox, 1943)

- Fore femur at most with a slender tooth ventrally ( Fig. 18 ); fore and middle femora with 2–5 minute pegs latero-ventrally ( Figs 19, 21 ); antenna of female with 20–28 segments............................................................ 2

2. Propodeum smooth except for a complete medio-longitudinal carina connected to some crenulae ( Fig. 23 ); fore femur with one slender ventral tooth ( Fig. 18 ); fore and middle femora with row of 3–5 minute pegs latero-ventrally ( Figs 19, 21 ) and hind femur without pegs; antenna of female with 20–22 segments; Papua New Guinea.................................................................................................. L. wilhelmense Braet & van Achterberg, sp. nov.

- Propodeum with transverse and longitudinal carinae and more or less rugulose; fore femur without a slender ventral tooth; all femora with row of 2–3 minute pegs latero-ventrally; antenna of female with about 28 segments; India (Himachal Pradesh)......................................................................... L. bovefemora ( Bhat, 1979) comb. n.

Figures

FIGURES 17 – 25. Leptotrema wilhelmense sp. n., g, holotype. 17, wings; 18, fore femur, outer aspect; 19, fore femur, lateroventral aspect; 20, first subdiscal cell of fore wing; 21, middle femur, latero-ventral aspect; 22, four basal antennal segments; 23, propodeum and first metasomal tergite, dorsal aspect; 24, mandible, full sight on third tooth; 25, antenna. 17: scale-line (= 1.0 x); 18 - 21: 2.2 x; 22: 1.7 x; 23: 1.4 x; 24: 2.7 x; 25: 1.2 x.