246 ENTOMOLOGICAL SOCIETY 



separated, not meeting at inner basal angles; mesepisternum usually 

 small, wedge-shaped or triangular; hind wings with a long marginal 

 vein ; mandibles usually stout, 3- or 4-dentate at apex. 



Family LXIX. Pteromalidae. 



10. Hind coxae normal ; mesopleura impressed n 



Hind coxae abnormally large and dilated, their femora flat or com 

 pressed ; tarsi very long; mesopleura entire, not impressed; mar 

 ginal vein in front wings most frequently extraordinarily length 

 ened, the radius very short, scarcely dilated ; mesonotum without 

 furrows Family LXX. Elasmidae. 



11. Tarsi 4~5-jointed, rarely heteromerous ; anterior wings not short and 



broad, with the pubescence normal ; marginal and radial veins normal ; 

 postmarginal vein often wanting; mesonotum with complete or in 

 complete furrows Family LXXI. Eulophidae. 



Tarsi 3-jointed ; anterior wings short and broad, broadly rounded at 

 apex with the pubescences most frequently arranged in rows, more 

 rarely normally pubescent; marginal and radial veins united in the 

 form of a strongly curved line P). 



Family LXXII. Trichogrammidae. 



12. Pronotum usually large, rounded, or conically produced anteriorly; 



wings always with a long marginal fringe, nearly veinless and 

 always without a radius (stigmal vein), the marginal vein most 

 frequently reduced to a mere dot; antennae in 9 most frequently 

 terminating in a distinct fusiform or egg-shaped solid club, more 

 rarely with a 2-jointed club; tarsi 4-5-jointed. 



Family LXXIII. Mymaridse. 



Ta b le of Sub fa m Hies , 

 FAMILY LXI. TORYMID^E. 

 Metathoracic furrows not well defined, the scapulae therefore scarcely 



or indistinctly separated ; ovipositor not exserted 3 



Metathoracic furrows distinctly defined, the scapulae therefore well 

 separated; ovipositor always prominently exserted, most frequently 

 very long. 



Hind tibiae with only i apical spur 2 



Hind tibiae with 2 apical spurs. 



Posterior margin of mesepisternum incised beyond the 

 middle; metepimeron curved, dilated above the apex; 

 posterior femora simple, neither armed with a tooth nor 

 serrate beneath. 



Stigmal vein always long; abdomen usually more 

 or less depressed, if subcompressed the hypo- 

 pygium large and prominent; $ usually apterous, 

 the head oblong, with a triangular fovea anteriorly 

 in which lie the antennae; abdomen short, not 

 tubularly lengthened Subfamily I. Idarninse. 



