292 MALE GENITALIA OF NORTH AMERICAN HESPERIIDAE 



The genitalia are of the same general pattern as those of 

 ericetorum, the arms projecting from the sides of the girdle are, 

 however, about twice as long. 



Records: Mexico, Colima, Yucatan; Brazil, Chapada; 

 Paraguay, Villa Rica. 



12. Heliopetes macaira Reakiit (Fig. 12.) 



This species has the costal fold and tibial tuft. It enters our 

 territory in Texas and extends south through IMexico and Central 

 America. 



Our Texan and Mexican material shows considerable variation 

 in the amount of lirown encroaching on the white ground. 

 Above, some specimens are immaculate on the secondaries 

 (oceanus Edwards) , in others there is considerable blackish brown 

 at the ends of the veins and even along the entire margin. 

 Below we have a condition ranging from small brown spots and 

 broken terminal band, to brown color covering almost the entire 

 surface of the secondaries. The pattern, however, is the same 

 with varying insistence. 



Godman and Salvin rather suggest that nivella may be but a 

 varietal form of macaira, and our observations lead us to believe 

 that such is the case. The genitalia of the two forms are the 

 same. 



There is a great variation in the amount of the brown-black 

 markings in the allied species alana, arsalte and laviana, of which 

 we have long series from Central America and Mexico, and an 

 analogy is found in an unidentified species, very closely allied, 

 from southern Brazil, which shows a similar variation equally 

 great. 



The principal differences we recognize to separate the typical 

 form from its variety is to be found in the maculation of the 

 secondaries. Macaira is described as immaculate above and 

 with a broad brown band extending across the outer border 

 below, while nivella is described as with blackish brown on the 

 border above and with two patches on the imdcr side at the 

 outer border. 



We accept the synonymy as given by Godman and Salvin, 

 who were in a position to haye access tg types and authentic 

 material. 



