144 CRABRONIDA, 
striate, and the posterior longitudinally and more. coarsely 
wrinkled ; the scutellum longitudinally striate, interspersed with 
punctures; the metathorax having a deep longitudinal incisure 
and a semicircular space at its base, very coarsely longitudinally 
striate, and its posterior portion extremely delicately transversely 
striate and opaque; the peristethium has on each side, behind, 
an abbreviated tranverse carina; the collar with a transverse 
interrupted band, the tubercles, and a lunule upon the scutellum, 
all yellow (sometimes the tubercles black, and a mere slight 
transverse line only on the scutellum); the tegulz testaceous ; 
the wings slightly fuscous, their nervures testaceous ; the legs 
yellow, with the femora black, excepting the apex of the tro- 
chanters, and their knees; a black litura beneath the anterior 
tibize, a spot beneath the intermediate ones, and the extreme 
apex of all ferruginous, and the apical joints of the tarsi rufo- 
piceous, the anterior ones ciliated on the exterior, and the in- 
termediate and posterior tibize spinose. 
The abdomen black, with five yellow bands more or less in- 
terrupted, sometimes all entire, the third generally most in- 
terrupted, and the fifth always entire, the first generally waved 
in front; the anus yellow, the produced obtuse spine at its ex- 
tremity canaliculated above, and black, and having on each side 
some rigid yellow sete. 
The ¢ has its antenne simple, which appear to have but 
twelve joints, and differs from the 9 in having the scape above 
black; the mandibles with only a yellow litura on their inner 
edge, sometimes entirely black; the collar less yellow ; the tu- 
bercles, scutellum, and tegulz sometimes black; the sculpture 
of the metathorax more strongly marked, its anterior portion 
rather irregularly longitudinally striate ; the wings dark, their 
nervures piceous ; the legs yellow, the anterior femora behind, 
the intermediate behind and below, and the posterior, entirely 
black ; the outside of the anterior tibia and the inside of the 
intermediate ones entirely black, the exterior of the inter- 
mediate plantze produced towards the apex, and its margin 
