LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 103 



or with strong spines provided with stinging hair, in the specialized 

 forms with smooth bodies and practically all the hair lost. Thoracic 

 legs present but small. Pupa of a low incomplete type, apparently 

 with first abdominal segment free, as well as all appendages; diffuse 

 spinulation all over dorsum of abdomen; collar projecting over head 

 in a pair of subdorsal lobes, and mesoscutum extending back across 

 metathorax to abdomen. Maxillae with tongue-case extending along 

 labial palpi, but not to their end, with a lateral projection at base, 

 reaching in Prolimacodes under the eye to the antenna. Eye strongly 

 sculptured, and forming a movable cap, covering end protecting the 

 first spiracle, which is ventral, not dorsal as in most families. 



The larva hibernates in the cocoon. The cocoon is oval, simple, 

 and has a hinged lid for emergence. 



There are about 400 species, the Phobetron group being American, 

 the spined group, largely tropical in both hemispheres, and the group 

 with smooth larvae, north temperate. 



Key to the genera (males) 



1. Antennae pectinate at base, with serrate or simple outer half. 

 2. Fore wings lacking one vein (fig. 68). 



3. Outer margin regularly convex 7. Monoleuca 



3. Outer margin concave below apex 8. Adoneta 



2. Venation complete, with 10 veins arising from cell. 



3. Inner margin of fore wings somewhat sinuate 4. Sibine 



3. Inner margin of fore wings evenly convex. 



4. Thorax green -. 6. Parasa 



4. Thorax in our species brown 5. Euclea 



1. Antennae pectinate nearly or quite to apex. 



2. Palpi reaching or exceeding vertex 2. Isochaetes 



2. Palpi not reaching vertex. 



3. Head strongly retracted, male smoky with translucent wings, wholly 



unlike female 1. Phobetron 



3. Head fairly prominent, sexes similar. 



4. Hind tibiae with terminal spurs only 9. Sisyrosea 



4. Hind tibiae with four spurs 10. Natada 



1. Antennae serrate or simple. 



2. Hind tibiae with terminal spurs only 14. Heterogenea 



2. Hind tibiae with four spurs. 

 3. Palpi reaching beyond vertex. 



4. Palpi extremely long, with third joint more than half as long as second. 



3. Cnidocampa 



4. Palpi reaching barely above vertex, third joint shorter.. 15. Lithacodes 

 3. Palpi reaching barely to vertex, or shorter. 



4. Robust, with serrate antennae 11. Prolimacodes 



4. More slender, with simple or laminate antennae. 



5. Fore wing with rounded apex, but oblique outer margin. 



13. Tortricidia 

 5. Fore wing with square apex and nearly straight costa. 



12. Cochlidion 

 5. Fore wing broad and bluntly rounded 16. Packardia 



