286 MALE GENITALIA OF NORTH AMERICAN HESPERIIDAE 



3. Hesperia xanthus Edwards (Fig. 3.) 



This species has the til)ial tuft l)ut no costal fold. It is v(M-y 

 like rvralis in general appearance and maculation, and the 

 pattern of the genitalia is similar. 



The uncus is stout, carrying four hooks; the valve resembles 

 that of ruralis except that the stout teeth of the recurved c^'uiral 

 process at the apex are lacking; the aedoeagus is simple. 



Records: Colorado; New Mexico, Jemez Springs, May 

 (Woodgate) . 



4. Hesperia macdunnoughi Oberthlir 



This name was proposed for a single male specimen (from 

 Arizona ?) figured by Colot, but not described.^ Another male 

 is figured by Barnes and McDunnough,^ from Redington, Arizona, 

 and they state that it lacks the costal fold and is closel}^ allied to 

 xanthus, but smaller. 



The markings of the secondaries below are unlike those of 

 any of the series of xanthus and ruralis in our collections. 



5. Hesperia seriptura Boisduval (Fig. 4.) 



This species has the tibial tuft but lacks the costal fold. 



The uncus carries two long stout divergent beaks; the sca- 

 pliium is feebly developed; the valve is rounded at the apex, 

 bilobed and carrying a small recurved process bearing fine spines; 

 the aedoeagus carries near the middle a stout tooth. This 

 species has a well developed, juxta, like a folded leaf, in which the 

 aedoeagus lies. 



Records: Colorado, Trinidad, Chimney Gulch, June (Oslar), 

 Poncha Springs; Arizona, Prescott; New Mexico, Highrolls 

 (Viereck), Las Cruces, 



(5. Hesperia pliiletas Edwards (Fig. 5.) 



This species has both costal fold and tibial tuft. 

 It was described from a single female from Western Texas 

 (Boll), as being similar in its markings to tesseJIata above, but 

 distinguished by the secondaries below, which are white with a 

 yellow tint, without the discal band as in tessellata, but with a 

 few brown dots and streaks, quite unlike any other American 

 species. 



8 01)i!rt,hiir, Ktud. Lcp. Comp., ix, p. 8G, pi. cclxiv, tig. 2205, (1913). 

 >Cout. Nat. Hist. Lcp. N. A., ni, pi. x, fig. 14, (1916). 



