PHILAMPELINiE. 261 



Panacra). Pupation is always in a rough cocoon on the sur- 

 face of the ground, never under it, or, more rarely, among the 

 leaves of the food-plant (Gurelca, Sphingonsepiopsis). A large 

 number of the smaller species fly by day, and lay their eggs 

 while on the wing. The moth rests with the wings held nearly 

 horizontal, the abdomen sometimes bent upwards. 



Cosmopolitan ; but in the Netropical Region occurring 

 only in Northern Mexico. Nineteen Indian genera. 



Key to the Genera. 



Imagines. 



1. Spines of first row of abdominal tergites 



not longer than broad 2. 



Spines of first row of abdominal tergites 

 longer than broad 3. 



2. End-segment of antenna elongate ; <$, [p. 345. 



antenna with fasiculate cilia Macroglossum Scop., 



End-segment of antenna elongate ; <$, 

 antenna similar to that of 2, without [p. 393. 



prolonged cilia Rhopalopsyche Butl., 



3. Fore tibia spinose 4. 



Fore tibia simple 5. [p. 328. 



4. Costal margin of hind wing deeply sinuate . Gurelca Kirby, 

 Costal margin of hind wing not sinuate . . . Sphingonjepiopsis 



o. End-segment of antenna elongate, more or [Wallengr., p. 338. 



less long, filiform 6. 



End-segment of antenna long, but not [p. 299. 



filiform Lepchlna Oberth., 



End-segment of antenna short 10. 



<6. Shorter mid- and hind tibial spurs with [p. 324. 



comb of bristles Nepheee Hiibn., 



Shorter mid- and hind tibial spurs without 

 comb of bristles 7. 



7. Distal margin of fore wing scalloped or 



angulate or dentate 8. 



Distal margin of fore wing even 9. 



8. End-segment of antenna not scaled, with [p. 299. 



a number of very long bristles Panacra Walk., 



End-segment of antenna scaled Acosmeryx Boisd., 



'9. End -segment of antenna not scaled, with [p. 289. 



very long bristles Chromis Hiibn., p. 264. 



End-segment of antenna scaled Deilephila Lasp., 



End-segment of antenna scaled on ventral [p. 266. 



surface only Acosmerycoides 



10. Eye strongly lashed and spines of abdo- [Mell, p. 287. 



minal sternites strong Rhodosoma Butl., 



Xot so 11. [p. 343. 



11. Mid-tibial spurs equal or nearly equal in 



length, very short, little longer than 



the tibia is broad 12. 



Mid-tibial spurs unequal, longer one at least 



twice as long as the tibia is broad 14. 



12. Fore wing strongly falcate Dahira Moore, p. 276. 



Fore wing not falcate 13. 



