116 
Psyche 
[Sept-Dec. 
deep; a distinct suture divides the notopleuron from the epi- 
pleurites at the base of the wing; posthumeral suture marked 
on the sides only, behind and close to the spiracle; transverse 
mesonotal suture placed far back and weakly marked only over 
the lateral third; notal suture weakly indicated anteriorly; 
other dorsal sutures obsolete, the humeral callosities and noto- 
pleura fused with the mesoscutum medially. Scutellum very 
wide and short, with nearly parallel anterior and posterior 
margins, superficially divided by a transverse depression. Meta- 
pleuron with a short, conical, blunt, so-called “pleurotergal” 
protuberance, hidden in dorsal view by the wing. Mesothoracic 
spiracle very large, entirely dorsal; metathoracic spiracle large, 
between the metapleural protuberance and the hind coxa. 
Dorsal chsetotaxy of patches of long bristles, scarcely corre- 
sponding to the customary grouping: a dense oblique patch on 
the humeral callosity to beyond the spiracle, ending far from 
the middle of the mesoscutum, but with a narrow extension 
across its anterior part (somewhat behind the humeral margin) ; 
a dense patch over most of the notopleuron ; 6 or 7 long bristles 
(postalars) close to the wing, behind the transverse mesonotal 
suture, and more medially a row of 3 bristles (prescutellars) ; 
many long scutellars in several irregular rows on the disk and 
a row of similar bristles on the hind slope of the scutellum. 
Prosternum divided by a deep triangular notch into two broad 
lobes, bluntly rounded at apex, bare. Mesosternum broader 
than long, with a longitudinal furca, bare except for a narrow 
patch of setae on each side before the mid coxa. Metasternum 
divided into an anterior basisternum (before the hind legs) 
and a narrower, posterior sternellum (between the hind coxae) ; 
basisternum with a longitudinal furca ending posteriorly in a 
deep pit, with only a narrow cross-patch of setae (broadly 
interrupted medially) near the hind margin; sternellum deeply 
depressed medially, saddle-like, bare. Legs very long and 
stout; fore and mid pairs about alike, hind pair slightly longer. 
Coxae short, with many short setae and several long bristles. 
Trochanters short, with a few short setae near apex. Femora 
fairly evenly swollen throughout, bare ventrally, covered dor- 
sally with many stiff hairs and bristles, leaving bare a broad 
basal area (more extensive on mid and less so on hind pair). 
Tibiae flattened, dor sally with a superficial longitudinal groove 
bearing a row of erect bristles; a similar row of bristles near the 
