In several genera the males often have secondary sexual tufts of 

 hair or fans of scales on thorax, legs, or abdomen, and in the 

 genus Eriopyga patches of androconia on the wings of very diverse 

 forms ; in Cirphis the underside is sometimes clothed with silvery 

 metallic scales. The species of the genus Monima all appear in the 

 early spring. 





Fig. 1. — Larva of Folia pisi. \. 



Larva smooth, the warts with 1 hair ; all the prolegs present, 

 the 12th somite with more or less developed dorsal hump. In the 

 Harmodia-giou^ of Polia the larvae all feed on Caryopliyllacece, 

 Silene, Lychnis^ Dianthus, etc., mostly in the seed-pods, and the 

 females have the ovipositor long and exserted for penetrating the 

 tissues of the plants ; in Leucania and allied genera the larvae all 

 feed on Graminece. 



Key to the Genera. 



A. Eves small, reniform. 



a. Thorax clothed with hair and hair-like scales ... Anarta, p. 37. 



b. Thorax clothed with hair only Panolis, p. 4(31. 



B. Eyes large, rounded. 



a. Fore tibia with terminal claw. 



a^, Frons with rounded prominence with corneous 



plat« below it Thaegelia, p. 220. 



h^. Frons without prominence. 



a^. Abdomen with dorsal series of crests Barathra, p. 11. 



b^. Abdomen with dorsal crest on 1st segment 



only Hypobarathra, p. 221. 



b. Fore tibia without terminal claw. 



a^. Fore tarsus with long curved claw-like spines 

 on outer side of 1st joint. 

 a'^. Fore tibia with spine on outer side near 



extremity Conisania, p. 472. 



6^. Fore tibia without spine. 

 a^. Frons with truncate conical prominence 

 with vertical ridge at middle and corneous 



plate below it ....^. Pronotestba, p. 224. 



b^. Frons with truncate conical prominence 

 with corneous plate below it. 



a*. Proboscis aborted, minute Aglossestra, p. 225. 



b^. Proboscis fully developed, 

 a'. Frontal prominence occupying lower part 



of frons Epia, p. 226. 



b^. Frontal prominence reniform, in middle 



of frons Cardepia, p. 234. 



c^. Frons with rounded prominence with cor- 

 neous plate below it Trichoclea, p. 236. 



d^. Frons without prominence. 



a*. Eyes overhung by long cilia Lasianobia, p. 274. 



b2 



