— 228 — 



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



deeplv 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 wings. 



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

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

 narrow, rounded at the tip. 



Neuration of the fore wings. Discoidal cell § 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 equidist- 

 ant. 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 I am doubtful 

 whether it is the female of Tr. Smithsonianus or another 

 species. A comparison of my figures will illustrate the 

 difference. (Upper figure Smilhsoniimus, lower figure sp ?) 

 With regard to the systematic position of the genus Tripro. ris, 

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

 Zygaenidas 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 Harrisina Pack. ; for the genera be- 

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

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



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

 XygX'uidae, except Pseudalypia Edw., Horama Edw. , Edivardsia 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. 



