ORISMOLOGY. 347 



16. DIVERGENT (Diver gentes}. When wings at rest re- 



cede from the abdomen. 



17. DEFLEXED (Deflexte}. When wings at rest cover- 



ing each other are so bent downwards as to imi- 

 tate a roof, of which their interior margin forms 

 the ridge. Ex. Homopterous Hemiptera. 



1 8. REVERSED (Reverse?}. When wings at rest are de- 



flexed, but so that the anterior margin of the infe- 

 rior projects beyond the anterior margin of the 

 super ior. Ex. Gatropacha quercifolia. PLATE 

 XIV. FIG. 2. 



19. BROAD (Latce}. When the interior margin is shorter 



than the posterior. Ex. Papilio. 



20. NARROW (Anguske). When the posterior margin 



is shorter than the interior. Ex. Heliconius. 



D. Shape. 



1. FALCATE (Falcatee). Wings having their posterior 



margin concave, and the posterior angle acute and 

 curved. Ex. Attacus Atlas. PLATE XIV. FIG. 4. 



2. DIGITATE (Digitata}. Wings cleft to the base into 



several subdivisions. Ex. Pterophorus. PLATE 

 XIV. FIG. 3. 



a. RADIUS (Radius}. A single subdivision of a digitate 

 wing. 



3. CAUDATE (Caudatce). When wings terminate in a 



tail-like process. Ex. Papilio Machaon. PLATE 

 XI V. FIG. 1. 5. 



a. Bi CAUDATE (Bicaudatce). Having two such tails. 

 Tricaudatcc having three, &c. 



E. Surface. 



1. SQUAMATE (Squamata}. Wings covered with mi- 



