0RISM0L0GY. 34-7 
16. Divergent {Divergentes). When wings at rest re- 
cede from the abdomen. 
17. Deelexed (Deflcxa). When wings at rest cover- 
in a- each other are so bent downwards as to imi- 
tate a roof, of which their interior margin forms 
the ridge. — Ex. Homopterous Hemiptera. 
18. 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 
superior. — Ex. Gatropacha quercifolia. Plate 
XIV. Fig. 2. 
19. Broad {Latce). When the interior margin is shorter 
than the posterior. — Ex. Papilio. 
20. Narrow {Augusta:). When the posterior margin 
is shorter than the interior. — Ex. Heliconius. 
D. Shape. 
1. Falcate {Falcatce). 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 {Caudata). When wings terminate in a 
tail-like process. — Ex. Papilio Machaon. Plate 
XIV. Fig. 1. s. 
a. Bicaudate' {Bicaudatce). Having two such tails. 
Tricaudatce having three, &c. 
E. Surface. 
1. SguAMATE {Squamahe). Wings covered with mi- 
