80 JOHN B. SMITH. 



3. — Abdomen tufted at tip, and usually also at sides 4. 



Abdomen not tufted at tip or sides 5. 



4. — Body short, plump : abdomen pointed at tip ; primaries excavated below apex 



and again before hind angle Aiiipliioii. 



Abdomen elongate, flattened, rather abruptly terminated ; anal tuff fan- 

 like : primaries very narrow, pointed ; antenna; very slender. 



^llopos. 

 Abdomen short, obtuse; broad, with brush-like lateral tufts; antennae 



thick, in % serrate; primaries augulate and excavate Thyrous. 



Abdomen conic, with a fan-like tuft at tip ; thorax with a distinct sharp 



crest behind collar; primaries as in Thyreus Kiiyo. 



.5. -Spurs of middle and hind tibiie very long, unequal ; legs robust 6. 



Spurs of middle and hind tibije short, weak, more equal ; legs weak 7. 



(i— Prothorax not much extended before base of primaries; fore legs short and 

 stout. 

 Abdomen conic, pointed, fore tibia and tarsi usually armed with spines or 



claws at outer side Sphinx. 



Abdomen conic, pointed, head much broader ; eyes larger ; size very small ; 



secondaries yellow with black margin Ca.iitctliist. 



Abdomen obtuse at tip, head retracted, wings wider CeratoniiH.. 



Prothorax more extended before the base of primaries, head larger, thorax 

 robust; anterior legs longer, weaker; primaries with outer margin 

 sinuate. 



Abdomen obtuse I'aeliylia. 



Abdomen conic; anterior tibia and tarsi unarmed Pliilaiiipelus. 



Abdomen conic ; shorter; anterior tibia and tarsi with claw-like spines at 



outer side Deilepliila. 



Prothorax still further produced before base of primaries ; head large ; eyes 



very prominent; abdomen long and rather slender; thorax narrower. 



Thorax uutufted ; third joint of palpi projecting forward like short 



horns; outer margin of primaries not dentate Ainphoiiyx. 



Thorax with divided crest, outer margin of primaries dentate. 



Dilophonota. 

 7.— Wings very narrow, small ; abdomen long, conic, very smoothly clothed. 



Chcerocanipa. 

 Broader winged, less robust ; head more retracted ; abdomen shorter, less 



regularly conic Darapitia. 



Primaries angulated ; abdomen obtuse, head crested, strongly retracted ; 



% antennse serrate ... Deidaiiiia. 



8. — Primaries with outer margin scalloped, or evenly crenulated. 



Anterior tibia with a heavy claw at tip Triptogoii. 



Anterior tibia unarmed Paouias. 



Primaries with outer margin excavate and angulate Siiieriiitliiis. 



Primaries with outer margin evenly dentate: third joint of palpi un- 

 usually long ; divaricate at tip ('ressoiiia. 



Primaries with outer margin even. 

 Anterior tibia armed with a series of long claws; plump, robust; body 



woolly Arctoiiotus. 



Anterior tibia unarmed ; form more slender, less robust Elleilia. 



