Genus Systasea 



Early Stages. — Unknown. 



The habitat of this species is southern Colorado, New Mexico 

 and Arizona. 



(7) Hesperia nessus, Edwards, Plate XLVII, Fig. 17.. -: 

 (Nessus). 



Butterfly. — This singularly marked little species, which prob- 

 ably might be separated from this genus on account of the slen- 

 der and prolonged palpi, and no doubt would be by some of the 

 hair-splitting makers of genera, I am content to leave where it 

 has been placed by recent writers. It can be readily recognized 

 by the figure in the plate, as there is nothing else like it in our 

 fauna. Expanse, .80 inch. 



Early Stages. — Unknown. 



Sessus occurs in Texas and Arizona. 



There are a few other species of this genus found within the 

 limits of the United States., but enough have been represented 

 to give a clear conception of the characteristics of the group, 

 which is widely distributed throughout the world. 



Genus SYSTASEA, Butler 



Butterfly. — The palpi are porrect, the third joint projecting 

 forward, the second joint densely sca'ei below. The antennae 

 are slender, the club moderately stout, somewhat bluntly pointed, 

 bent, not hooked. The hind wings are somewhat 

 crenulate, and deeply excised opposite the end of the 

 cell. The fifth vein is lacking. In the fore _ ; 

 lower radial arises from a point nearer the upre- 

 radial than the third median nervule. The fore wings 

 are crossed about the middle by translucent spots or 

 bands. 



Early Stages. — The early stages are unknown. 



(1) Systasea zampa, Edwards, Plate XLVI, M 



_. ,- v Nruration 01 



pig. 1, £ (Zampa). . ; _ : -_ ; 5 . 



Butterfly. — The wings on the upper side are ochre- ■"-' 



ous. mottled and clouded with dark brown. The primaries are 



marked about the middle and before the apex by translucent 



transverse linear spots. In addition there are a number ::" r 



opaque spots on the primaries. The secondaries are traversed :y 



3^9 



