70 TRANS. ST. LOUIS ACAD. SCIEN'CE. 



Wings 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. Bulla? four, A, B, CD and E, all very distinct and normally 

 located. 



Distinct from jfoppa, by the antennae 0* 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 antennas 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 JSticeros, by the abdomen not being sessile, 

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

 being obsolete. 



Joppidilim ruflceps, n. sp. — $ — 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 £, shading into yellow 

 on their middle \, 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 coarsely punctate, more finely on the mesonotum except 

 the scutel. Carina? of the metathorax obsolete except the transverse cari- 

 na? of the lateral areas and a trace of their hind carinse. Tegula? piceous. 

 Abdomen polished, with rather sparse, almost microscopic punctures and 

 appressed pubescence. Joint 1, 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 carina? only indicated by a small, shallow fovea at the ex- 

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

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

 them rufo-sanguineous. Venter blackish, the base of joint 1 and the tip of 

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

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

 basally not quite £ as wide as the last tarsal joint of the hind legs, termin- 

 ally a little tapered. Legs yellow, with all their coxa? 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. U r ings subopaque, black; veins black; stig- 

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

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



