70 TRANS. ST. LOUIS ACAD. SCIENCE. 



Wtng-s wider than usual ; radial area elongate ; areolet large, pen- 

 tagonal ; ist recurrent vein strongly curved in the middle; 2d 

 recurrent vein with the salient angle pretty distinct, but very ob- 

 tuse. Bullae four, A, B, CD and E, all very distinct and normally 

 located. 



Distinct from Jofpa^ by the antennae S not being submonili- 

 form, by the long and slender ist abdominal joint, by the long 

 ovipositor, and by the entire 4th tarsal joint. From Baryceros, 

 by the antennae being dilated only in ? and by the areolet not be- 

 ing obsolete. From Helwigia^ by the antennae being dilated only 

 in ? , by the abdomen not* being strongly compressed, by the 

 ovipositor not being very short, by the cubito-discoidal cell not 

 receiving both the recurrent veins, and by the areolet not being 

 obsolete. And from Euceros^ by the abdomen not being sessile, 

 by the ovipositor not being very short, and by the areolet not 

 being obsolete. 



Joppldium rnflceps, n. sp. — 9 — Black. Head subopaque, finely and 

 densely punctate, and as well as the mouth, rufo-sanguineous, except the 

 disk of the occiput, a cloud around the ocelli, the region between and above 

 the origin of the antennae, and the extreme base and tip of the mandibles. 

 Antennae \ as long as the body, rufous on their basal i, shading into yellow 

 on their middle J, their terminal \ brown-black. First joint of flagellum 4 

 times as long as wide, the 2d and 3d joints each about \ shorter than the 

 preceding. Thorax subopaque, with long, sparse, gray pubescence, conflu- 

 ently and rather coarselj punctate, more finely on the mesonotum except 

 the scutel. Carinae of the metathorax obsolete except the transverse cari- 

 nae of the lateral areas and a trace of their hind carinae. Tegulae piceous. 

 Abdomen polished, with rather sparse, almost microscopic punctures and 

 appressed pubescence. Joint i, 5 times as long as wide, \ wider at tip than 

 at the extreme base, suddenly contracted behind the base to | its basal width, 

 thence with its sides, except a small spiraculiferous tubercle, nearly straight 

 to the tip ; the carinae only indicated by a small, shallow fovea at the ex- 

 treme base. Joint 2 longer by \ than wide, 2I times as wide at tip as at 

 base ; 3 slightly shorter than wide ; 4-8 much shorter than wide, and all of 

 them rufo-sanguineous. Venter blackish, the base of joint i and the tip of 

 1-3 whitish ; the carinae of 4 and 5, and the whole of 6, rufo-sanguineous. 

 Ovipositor piceous, scarcely \ as long as the body ; sheaths brown-black, 

 basall}' not quite ^ as wide as the last tarsal joint of the hind legs, termin- 

 ally a little tapered. Legs yellow, with all their coxae and the hind tro- 

 chanters and femora, except the knees, black; the 4 front legs with their 

 trochanters and femora, except the knees, rufous, the upper surface of the 

 middle trochanters blackish. Jf««^5 subopaque, black ; veins black; stig- 

 ma black, its extreme base paler. Areolet with its inner and outer sides 

 nearly parallel. Bullae large and white ; on the side of the areolet which 



