SATYRIN/E. 203 



Schatz and Rober divide the Satyrince into six principal 

 groups, as follows : — * 



A. Lower disco-cellular nervule of the hind-wings rising at or 

 near to the origin of the second median nervule, never from 

 the curve of the third. 



i. Hetcera group. — Base of the sub-costal nervure of the 

 hind-wings free. Sub-median nervure forked at the base. 



Genera: cithjerias, het^era, pierella, antirrh/ea 

 (aberrant). 



ii. Lethe group. — Sub-costal nervure of the hind-wings 

 united with the costal nervure at the base, as in all the suc- 

 ceeding groups. Lower disco-cellular nervule as long or longer 

 than the middle one, and forming an acute angle with the 

 median nervure. Costal nervure of the fore-wings well de- 

 veloped, often thickened, but rarely inflated. 



Genera: menkris, lethe, neope, neorina, pararge, 

 ptychandra (aberrant), &c. 



iii. Mycalesis group. — Lower disco-cellular nervule generally 

 placed between the first and second median nervules at an 

 acute or obtuse angle. Costal nervure of the fore-wings always, 

 and the median and sub-median nervures generally, inflated 

 at the base ; but when the two last-named nervures are not 

 inflated, there is always a tuft of hair on the sub-median 

 nervure in the male. 



Genera: mycalesis and bicyclus. 



B. Lower disco-cellular nervule of the fore-wings running to 

 the curve of the third median nervule. 



* I have slightly condensed the data, but the names of the most repre- 

 sentative genera in each group are given. 



