SKINXER AND WILLIAMS 



115 



Goniurus, and is followed by Godman and Salvin in the Biologia, 

 who place with it talus, a similar untailed hesperid, but with 

 the generic distinction from Ei(damus open to question. Lind- 

 sey puts simplicius as the type of Goniurus, presumably as the 

 first mentioned species. Now if coelus is declared congeneric 

 with the tailed hesperids now usually included under Eudamus, 

 the latter name must fall for the former, but if the contrary 

 obtains, Goniurus should be confined to coelus and talus, neither 

 coming in our fauna, and Eu(hn)ius still holds for the considerable 

 group of tailed skippers headed by proteus; the writers are 

 inchned to follow this course. 



The male genitaha with its cleft uncus, conspicuous but 

 simple scaphium and rather normal clasp, may be called typical 

 of this entire group of the Hesperiidae. The aedoeagus contains 

 a stout, many-branched spine. 



A very closeh^ related species, esmemldus, veiy difficult to 

 distinguish from its color and maculation, has a very different 

 terminus to its valve. 



Fig. 10. Fig. 11. 



Fig. 10. Eudamus (Goniurus) proteus. Miami, Florida. Fig. 11. Eu- 

 damus (Goniurus) dorantcs. Gatun, Canal Zone, Panama. 



12. Eudamus (Goniurus) dorantes rauterbergi Skinner (Fig. 11.) 



Typical daranUs Biologia, plate 7'), fig. 7. 



This species has a wide range to the south from our l)order, 

 and is subject to considerable variation in series from any 

 locahty. Rauterbergi, the type of which is in the Academy 



TRANS. .\M. ENT. SOC, XLVIII. 



