nnoi\ 1 iJM 'Ell. 1 M. I L. n '. i xa . 



69 



Fig. 20. — Post, wing, Amathiisia 

 phidippits, slidwins apt'x of ci-U 

 partly closed by atrophied ner- 

 vule. 



Flo. ■-•!. — .\nt. wing. Amatliiisia 

 phidippus, sliowing snln'ostal 

 nervulos, bases of discoidal ner- 

 viUes and base of first median 

 nervule. 



Fig. 22. — Ant. wing, Zeuzidia ame- 

 thystus, showing base of tirst 

 median nervule, with oblique 

 supplementary nervule attached 

 to fold in wing (ilotted line). 



Fig. 23. — .\ut. wiug, Discopkora 

 celinde, showing arrangement of 

 subcostid Dcrvules and bases of 

 discoidal nervules. 



Fig. 24. — Post. wing. Clerome gra- 

 cilis, showing bifureatioii of sub- 

 costal nervules and apparent base 

 of upper disco-cellular nervule. 



SYNOPSIS OF GENERA. 



1. Discoidal cell to posterior wings partly closed by an atrophied 



lower disco-cellular ner\Tile. 

 A. Subcostal nervules of anterior wings free. 



((. Discoidal nervules of anterior wings well separated at 

 their origin. 

 /). First median nervule of anterior wings strongly angu- 

 lated near base. 

 c. Anterior wings with inner margin nearly straight, 

 and apical angle not acute. 

 d. Anal angle of posterior wings produced in caudate 



prolongation. Amathusia. 



AA. First subcostal nervule of anterior wings anastomosing 



with costal nervure. 



bb. First median nervule of anterior wings strongly angu- 



lated near base, emitting a short oblique nervule, 



which connected with a fold of the wing gives the 



appearance of an additional median nervule. 



cc. Anterior wings with inner margin dilated and convex 



in ^ , and apical angle acute. . - - . Zeuzidia. 



2. Discoidal cell to posterior wings open, lower disco-cellular 



ner^-ule entirely absent. 

 aa. Discoidal nervules of anterior wings with their bases 

 contiguous. 

 bhb. First median nervule of anterior wings slightly arched, 

 but not angulated near base. 

 ccc. Anterior wings with inner margin nearly straight, and 

 apical angle acute. 

 dd. Outer margin of posterior wings obtusely angulated 



at apex of first median nervule. - - - Discophora. 

 aaa. Discoidal nervules of anterior wings well separated at 

 their origin. 

 bhbh. First median nervule of anterior wings strongly arched, 

 but not angulated near base. 

 cccc. Anterior wings with inner margin nearly straight, and 

 apical angle not acute. 

 (7(7(7. Anal angle of posterior wings rounded, or some- 

 times produced in caudate prolongation. - - Thaumantis. 

 B. Subcostal nervules of anterior wings free, the second, third 

 and fourth emitted moderately close together and equi- 

 distant. 

 bhbhb. First median nervule of anterior wings neither jn'O- 

 minently arched nor angulated near base. 

 ccccc. Anterior wings with inner margin slightly dilated at 

 base in J , the apical angle rounded. 

 (7(?(7(7. Posterior wings ovate, the anal angle roimded. 



t'. Bifurcation of subcostal ner\iiles and apparent 

 base of upper disco-cellular nervule to pos- 

 terior wings contiguous. . - - . Clehomk. 

 BB. Second and third median nervules of anterior wings emitted 

 some distance apart. 

 ddddd. Posterior wings subovate and sul)elongate. 



ec. Bifurcation of subcostal nervules and apparent 

 base of upper disco-cellular nervule to pos- 

 tei-ior wings remote. Xanthot.knia. 



September 30, 1882. 



