TuiACAiNTHAGYNA AND GyNACANTHA I3 



posterior edge to tlie anterior end of the median sulcus of the anterior lamina ; 

 superior appendage with the sides of the blade beyond the narrowed base 

 parallel. Female with abdomen very slightly constricted, the space between the 

 lateral and ventral carinae distinctly narrowed at the level of the transverse 

 carina; appendages about as long as the last three segments ditzleri. 



3.' Anterior row ot cells in anal loop usually consisting of three cells. Haniular 

 process larger, more than .4 in length, equal to more than one-third the distance 

 from its posterior edge to the anterior end of tlie median sulcus of the anterior 

 lamina 4. 



4 (3'). Second and third femora dissimilar in color. Hamular processes with the 



mesal edges diverging posteriorly, less than .6 long ; superior appendages with 

 the sides of the blade beyond the base slightly converging posteriorly as seen in 

 supero-internal view. Female with abdomen not constricted, and the appendages 

 slightly shorter than the last three segments caribbea. 



4.' Second and third femora similar in color. Hamular processes with the mesal 



edges subparallel: superior appendages with the sides of the blade beyond the 



base parallel. Female of the single species known with the abdomen constricted 



at segment 3 and the appendages as long as the last three and one-half segments. 



5- 



5 (4'). Hamular process less than .6 long; margins of genital fossa without 



spines. Female as described in paragraph 4' triAda. 



5'. Hamular process about .7 long; posterior border of genital fossa with a largfc 

 patch of black spines or teeth. Female not known satyrus. 



6 (i')- No antenodal crossveins of the first or second series, basal to the first 



thickened antenodal. present (rarely a single crossvein may be seen in one 

 wing) 7. 



6'. One or more antenodal crossveins of the second series, and rarely of the first 

 series, basal to the first thickened antenodal, present in front wings or hind 

 wings or both; venation complex, two rows of cells between Ms and M, im- 

 mediately following the loop in M4 ; size large, abdomen 55 or more, hind wing 

 55 or more, and stigma front wing 5 or longer; colors bright and contrasting; 

 wings with a colored basal area extending to nearly the first antenodal at least; 

 femora light, clear reddish brown to almost black with the apices dark to black, 

 tibiae darker, the dorsal surface sometimes more or less light yellowish brown ; 

 abdomen greatly enlarged at base, constricted at 3. In the male the ventral 

 carina on abdominal segment 2, posterior to the point of convergence, concave, 

 meeting the lateral carina at an acute angle; spines of anterior lamina direct- 

 ed caudo-ventrad. Apparently on the wing throughout the day 



gracilis group. 2J. 



7 (6). Small to medium insects (abdomen 32-54, hind wing 321-54); Idull to 



brilliant coloration, legs variously colored ; stigma rarely 4.5 long, in which cas*" 

 tile auricles of the male are greatly enlarged or there is a median apical tubercle 

 on the sternum of abdominal segment i in both sexes ; venation simple to com- 

 plex ; wings hyaline to tinged yellowish brown, rarely with very restricted brown 

 at base. Tn the male the abdomen is constricted at segment 3 (except in laiicrps) 

 and the ventral carina on 2, posterior to the point of convergence, is concave, 

 meeting the lateral carina at an acute angle ; spines of anterior lamina variously 

 directed. Habits various Several groups. 8. 



7'. Medium to large (abdomen 43-62, hind wing 42-57, stigma front wing 4 long 

 or longer), dull colored, brownish insects, with green if present dull or pale; 

 sides of thorax brown with at least four usually distinctly defined brown to 

 black spots or areas as follows : one surrounding the nietastigma, a spot above 



