1865.] 17 



Legs moderate, yellow, including their coxae; the posterior tarsi dusky. 

 Abdomen blackish-piceous, sessile, subcompressed at tip ; apical margin 

 of the 2nd and the basal half of the 3rd segment yellowish, the rest 

 more or less tinged with piceous; ovipositor scarcely exserted. Length 

 lj line; expanse of wings 2 \ lines. 



Collection. — Dr. J. Griindlach. One specimen. 



Tryphon? claviventris, n. sp. 



Blackish; mouth, antennre, sides of mesothorax, tegulte, seutellum, most of 

 metathorax and legs, and two bands on abdomen, yellow ; wings fusco-hyaline, 

 areolet wanting; legs short and thick; abdomen strongly clavate. 



Male. — Blackish, shining, thinly clothed with a short pale pubescence; 

 head small, eyes large and prominent; anterior margin of the clypeus, 

 mandibles and the palpi, yellow ; antennae three-fourths the length of 

 the body, stout, dusky yellow, brownish above especially towards the 

 apex, basal joint beneath yellow. Thorax smooth and polished; collar, 

 tegulae, lateral margins of the mesothorax, dilated anteriorly and ex- 

 tending posteriorly to the seutellum, the broad anterior and upper mar- 

 gins of the pectus bordering on the mesothorax, and a line beneath the 

 wings, yellow ; pectus polished and broadly excavated to receive the 

 fore-legs in repose; the pleura has posteriorly a similar excavation for 

 the middle legs; seutellum rather large and yellow, as well as the space 

 on each side and the postscutellum ; metathorax not prominent, sub- 

 convex, smooth and polished, yellow, except its base and extreme sides. 

 Wings ample, fusco-hyaline, tinged with yellowish and having a slight 

 brassy gloss, tbe apical margins especially about the tip of the marginal 

 cell more deeply tinged with fuscous; nervures pale fuscous, the stigma 

 and costa fulvous; areolet wanting. Legs short and thick, especially 

 the femora, yellow ; the anterior femora with a large round black spot 

 behind, the middle femora blackish with the base and apex yellow, pos- 

 terior cox33 black, yellow behind, their trochanters yellow, their femora 

 blackish, piceous above and at base and apex, basal half of their tibiae 

 yellow, the apical half and the tarsi brownish. Abdomen elongate, 

 strongly clavate, slender at base, subpetiolated, subdepressed, reddish- 

 brown, the basal segment black with a yellow band across the tip, as 

 well as another on the second segment occupying its apical half. Length 

 5 lines ; expanse of wings 8 lines. 



Collection. — Dr. J. Grundlach. One specimen. 



This species looks very much like an Exochus, but the face is flat; it 

 probably does not belong to Tryphon, but in the absence of a more 

 allied genus, as far as known to me, I refer it for the present to that 

 genus. 



