HESPERIOIDEA OF AMERICA 41 



There are ^ve specimens from Arizona in the Barnes collection under 

 this name. Four I am imable to distinguish from xanthus; the remaining 

 one has the secondaries pale below, as in scriptura. 



5. EESPERIA SCBIPTVRA 



Syrichtus scriptura Boisd. Ann. Soc. Ent. France, (2), x, 312, 1S52. 

 Holland, Butterfly Book 328, pL XLvn, f. 12, 1898. 

 Wright, Butt. W. Coast 251, pL xxxr, -459, 1905. 



Oberthiir, Etudes de Lep. Comp. vi, 339, pL csxrvn, p. 1206, 1207, 1912 

 (type f. 1206). 

 New Mexico, California, Colorado, April to June. This si)ecies is read- 

 ily distinguished by the color of the under surface, its glossy appearance, 

 and as a rule by the reduction of the maculation of the secondaries. As 

 in the two preceding, the male has the tibial tuft but no costal fold. 



6. EESPERIA SYRICHTUS 

 Papilio syrichtu.s Fab.. Syst. Ent. 534, 1775. 



Pyrgus montiiagus Eeakirt, Proc Acad. Xat. Sci Phil. 1S66, 334. 

 Skinner, Ent. News xvn, 277, pL xn, 1906. 

 Texas and Florida, June and July. 



I have seen the type of montivagus in the Strecker collection 

 and it is syrichtus, not tesselMa as treated by many writers. I 

 have a long series from Florida in which the under surface of the 

 secondaries has a heavy superficial vestiture of brown scales in 

 both sexes. Male with both costal fold and tibial tuft. 



7. EESPERIA PEILETAS (Plate I, Fig. 7) 



Pyrgus philetas Edw., PapUio i, 46, 1881. 

 Arizona and Texas, June to October. 



8. EESPERIA TESSELLATA 

 Eesperia lessellata Scud., Syst. Eev. 52, (73), 1872. 

 Syricthus communis Grot^, Can. Ent. rv, 69, 1S72. 

 H. montivaga Scud., (not Eeakirt) Butt. New Eng. n, 1536, 1SS9. 

 Holland, Butterfly Book 327, pL XLvn, f. 18, 1898. 

 Wright, Butt. W. Coast 250, pL XYxr, 457, 1905. 



Occurs from coast to coast and from the Gulf to northern Canada, April 

 to October. 



8a. Sace OCCIDEXTALIS 

 Pyrgus occidentalis Skinner, Ent. Xews xvn, 96, 1906. 

 Skinner, Ent. Xews xvii, 277, pi. xn, 1906. 



California, Arizona and Texas. This form is scarcely worthy of a name. 

 but may be regarded as a pale southwestern geographical race. I have not 

 looked for differences in the genitalia. 



