54 Psyche [March 
Key to the U.S. Diapetimorpha 
Females 
(Females of pareia and aspila unknown) 
1. Propodeum black with conspicuous white markings, including 
at least a broad band on each side that reaches from some- 
what in front of crista to or nearly to hind margin 2 
Propodeum black or ferruginous to fulvous, its pale markings, 
if any, confined to cristae and often area immediately around 
cristae 3 
2. Malar space 0.50 as long as basal width of mandible; propodeal 
cristae low, about 0.37 as long as their basal width; propo- 
deum basad of basal trans-carina with a pair of large white 
lateral blotches; gastric tergites 2-6 blackish basally with 
broad fulvous and whitish apical bands 
18. D. picta Townes. 
Malar space 0.70 as long as basal width of mandible; propodeal 
cristae longer, about 0.9 as long as their basal width; propo- 
deum wholly black basad of basal trans-carina; gastric tergites 
2-6 wholly fulvo-ferruginous D. rufigaster Cushman 
3. Pronotum and mesoscutum black, with or without white mark- 
ings 4 
Pronotum and mesoscutum fulvous or ferruginous, with or 
without white markings 6 
4. Malar space 0.80 as long as basal width of mandible; head and 
mesosoma almost uniformly black and white at most only on 
propodeal cristae and sometimes very slightly on scutellum; 
gaster wholly feruginous 21. D. introita (Cresson). 
Malar space 0.60-0.70 as long as basal width of mandible; head, 
pronotum, and mesoscutum black with white markings; meso- 
pleuron, metapleuron and propodeum extensively fulvous to 
ferruginous; always a large median white blotch on gastric ter- 
gite 7 5 
5. First flagellomere 6.6-7. 1 as long as deep at apex; lower meta- 
pleuron with coarse, mostly longitudinally biased wrinkling 
that becomes somewhat reticulate only on dorsal 1/4 or less; 
dorsal face of propodeum between trans-carinae with strong, 
more or less longitudinally biased wrinkling; propodeal cristae 
