20 IOWA STUDIES IN NATURAL HISTORY 



Skinner, Ent. News I, 23, 1890, and it, 101, pi. 1, 1891. 

 Skinner, Trans. Am. Ent. Soc. xxxvn, 198, 1911. 

 Texas, Arizona and southward. 



Genus NASCUS Watson 



Naseus Watson, Proc. Zool. Soc. London, 1893, 28, Type Pa- 

 pilio phocus Cr. 

 Watson characterized this genus as follows : ' ' Antennae : 

 club rather robust, bent into a hook, terminal portion very 



slender and rather longer than rest 

 of club. Palpi upturned, third joint 

 almost concealed. Fore wing : outer 

 margin very much longer than inner 

 margin, the apex being very conspicu- 

 ously produced ; cell more than two- 

 thirds the length of costa; male with 

 a^b 3 of A aXfna"T s oS V e of a costal f old ; discocellulars very 

 primary oblique, the lower one slightly the 



longer ; vein 3 shortly before end of cell ; vein 2 close to base of 

 wing. Hind wing anally produced, and with an inconspicuous 

 tooth at vein lb ; vein 7 close to end of cell ; discocellulars and 

 vein 5 barely traceable ; vein 3 immediately before the end of the 

 cell; vein 2 considerably nearer to end of cell than to base of 

 wing. Hind tibiae with a long fringe of coarse hairs and with 

 two pairs of spurs. ' ' In our fauna the very long apiculus sepa- 

 rates this genus from all others. Fig. 3. 



1. NASCUS HESUS 



Telegonus hesus Westw. & Hew., Gen. Diurn. Lep. II, pi. 78, f. 5, 1852. 

 ? Papilio nidas Fab., Mant. Ins. II, 86, 1787. 

 ? Eudamus etias Hew., Desc. Hesp. 13, 1867. 

 Aaron, Ent. News i, 25, 1890 and n, 101, pi. 1, 1891. 



Eudamus euribates Skinner (not Cramer) Trans. Am. Ent. Soc. xxxvn, 

 191, pi. x, 1911. 

 Mexico to Brazil; Skinner includes Texas, following Aaron, presumably. 



I have compared Cramer's, Westwood and Hewitson's and 

 Skinner's figures, and find that the two latter agree very well, 

 but that, even allowing for the poor quality of Cramer's figure, 

 they can hardly be euribates Cramer. I have no data on the 

 occurrence of the species in this country. 



