Key to the species of Metelasmus Coquillett

1. Postgena with posterolateral margin sinuous, convex laterally at level of remiform scale; postgena terminating posteromedially in a process (Fig. 2). Frontoclypeal detached plates about as long as broad (Fig. 1). Occiput shorter, without an anterolateral triangular process (Fig. 3). Female: tergite VII with two pairs of setae (Fig. 5). Epiproct with 4 setae (Fig. 6). Male: gonopod longer; gradually narrowing toward the hooked apex (Figs. 7, 8) ............................................. Metelasmus wenzeli new species

­ Postgena with posterolateral margin concave, with a narrow process posterolaterally, directly posterior to remiform scale (Fig. 10). Frontoclypeal detached plates about twice as long as broad (Fig. 9). Occiput longer, with an anterolateral triangular process (Fig. 11). Female: tergite VII with one pair of setae (Fig. 12). Epiproct with 4 apical setae and 2 much shorter pairs anteriorly (Fig. 13). Male: gonopod shorter; rapidly narrowing toward the hooked apex (Fig. 14) ................................................................. ............................................................................... Metelasmus pseudopterus Coquillett