6 
Psyche 
[Mar. 
Enclosure ratlier large, swollen, smooth, with mid 
groove, a few short striae in each corner ; band on 
second segment much broader than others ; face but 
little narrowed above posticata 
8. Second abdominal segment without a pale band, hind 
femora almost wholly brown to black 9 
Second segment with distinct pale band 10 
9. Face almost wholly pale; band on first segment, pale 
marks on pronotum, scutellum and often on sides 
of propodeum; venter with some yellowish orestes 
Face with only narrow lateral marks pale, no band 
on first segment, no marks on scutellum nor pro- 
podeum, lower face with much silvery hair. 
semiatra 
10. A tuft of yellowish spreading hair at each side of 
pygidium; third submarginal cell with rounded 
sides ; stigma and marginal cell elongate 11 
No such tuft of hair each side of pygidium 12 
11. Face with dense, erect, very long hair, longer than 
scape, much long hair elsewhere ; yellow bands do 
not cover the segments at sides ; venter black ; pro- 
podeum and abdomen (except bands) black. 
englehardti 
Face with very short hair, scarcely noticeable, yellow 
bands (except one on second segment) usually 
cover entire side, venter spotted, thorax and ab- 
domen usually partly rufous fi delis 
12. Enclosure with a smooth pale spot in middle ; pygid- 
ium broader than long ; scape and hair lobes long. 
macrosticta 
No such pale area in enclosure, pygidium longer than 
broad 13 
13. Hind femora wholly black at least on inner side, 
the black of several segments hardly reaches 
margin 14 
Hind femora paler, rufous or yellowish on apical 
part 15 
14. Venter black; the yellow of bands leaves a black 
crescent ending shortly before lateral margin. 
denticidaris 
