— 228 — 



Antennae with bases approached, much shorter tlian the body, rather 

 deeply pectinated in the (^ . Palpi very minute, scaled, drooping, term- 

 inal joint acute. Tongue very short. Eyes large, rather prominent, 

 naked. Head free, rather small, scaled, with ocelli. Thorax longer 

 than wide, scaled. Abdomen rather cylindrical, finely scaled, shortly 

 and indefinitely tufted at the sides, much exceeding the hind w-ings. 



Legs slender, finely scaled, hind tibiae with two apical spurs. Fore 

 wings longer than the body, narrow, rounded at the tip. Hind wing.s 

 narrow, rounded at the tip. 



Neuration of the fore wings. Discoidal cell i of the length of the 

 wing, obtuse at the end, divided; subcostal vein four-branched, two nerv- 

 ules before the end of the cell, two behind it, near to each other. Two 

 discoidal veins. Median vein four-branched with nervules nearly equidisl- 

 arrt. Two internal veins- 



Neuration of the hind wings. Discoidal cell rather longer than 

 half the wing. Costal vein wanting, subcostal vein two-branched at the 

 end of the cell, one discoidal vein, median vein three-branched, the 

 nervules nearly equidistant. Three internal veins. 



In my paper a specimen is mentioned as unknown to me and be- 

 longing presumptively to Triprocris. 



At present, I am sure, that it belongs to this genus, in spite of a 

 little difference of the neuration of the hind wings; but 1 am doubtful 

 whether it is the female of Tr. Sinithsonianus or another 

 species. A comparison of my figures will illustrate the 

 difference. (Upper figure Smi/hso>iianiis, lower figure sp.?) 

 With regard to the systematic position of the genus Triprocrix, 

 there is no doubt that it belongs neither to the family ol 

 Zygaenidaj nor to the Syntomidae. It cannot belong to the first family 

 because the costal vein of hind wings is wanting, and as it has two in- 

 ternal veins of the fore wings this genus cannot, be placed with the Syn- 

 tomidae. It can only belong to the family Pyromorphidae H. Sch., with 

 the genera Pyromorpha H. Sch. and Harrisitia Pack. ; for the genera be- 

 longing to this family, are distinguished by two internal veins of the fort- 

 wings and want of the costal vein of the hind wings. 



I was thus able to examine all the genera of North American 

 Zygaenidae, excepl Pseudu/ypia Edw., Horama Edw. , Edwardsia Nmgn.. 

 and Penlhetria Hy. Edw., and I must again confirm that Mr. Smith's 

 view that neither of them belong to the Zygaenidae is perfectly right. 



