BRASSOLINvE. 199 



in the male of Discophora there is a large oval patch of raised 

 black scales just below the middle of the upper side of the 

 hind-wings. 



SUB-FAMILY VIII. BRASSOLI1SLE. 



Egg. Not yet described. 



Larva. With horns on the head, and with pairs of erect 

 spines on the back of some of the segments, generally with a 

 bind tail, feeding on monocotyledonous plants, and sometimes 

 forming a case for themselves. 



Pupa. Very thick, but not spiny. 



Imago. Of large size, often stout ; palpi rather long, hairy, 

 not widened ; wings broad, slightly scalloped, very rarely tailed ; 

 fore-wings rarely long; cells closed; hind-wings with a pre- 

 discoidal cell. Colours brown, tawny, orange, dull blue or 

 purplish, rarely bright blue. 



Kange. Exclusively confined to Tropical America. Only a 

 few genera have been described. 



Habits. Twilight-flyers. This is an unusual habit in Butter- 

 flies, though there are several species of Nymphalina, Morphince, 

 Satyrincz, and Lyccenidce, which have been recorded as flying 

 at dusk or at night, either habitually or occasionally. 



Characteristics. The typical genus, Brassolis^ Fabricius, con- 

 tains species varying from three to five inches across the wings. 

 They are brown, with orange-tawny bands on the fore-wings, 

 and sometimes with borders of the same colour on the hind- 

 wings. The species of Opsiphanes, Westwood, much resemble 

 those of this genus, but are larger insects, with broader and 

 shorter fore-wings. 



One of the handsomest species of the family is Dynastor 

 napoleon, Doubl. and Hew. It measures five or six inches 



s 



