52 PROCEEDINGS OF THE XATIONAL MUSEUM. vol. 42. 



tinctly black-shaded except along the margins of the wing. Another, 

 from Orizaba, has the hind wings entirely black, the abdomen also 

 black above, but the fore wings scarcely tinged by the dark color. 

 Another, from Cuernavaca, has the hind wings still blacker, the 

 abdomen deep black above, the fore wings brown, as described for 

 fuliginosa Rothschild. A female from IMerida, Venezuela, agrees 

 closely in color with the description of hricenoi Rothschild, but the 

 markings of these two forms are so incompletely described that I 

 can not decide whether my specimens should be referred to these 

 species or not. If it should prove to be so, the present species must 

 be knoAvn as Halisidota fuliginosa Rothschild, with hricenoi Roth- 

 schild as a sjTionym and carinator Dyar as the name of the normal 

 light-colored form. 



HALISIDOTA SCHAUSI RothschUd. 



The specimens before me from Mexico and Venezuela appear abso- 

 utely identical, so that I am inclined to consider the races pallida 

 Rothschild and meridensis Rothschild as unnecessaiy and would 

 place the names in the sjaionymy. The species scJiausi itself is not 

 strongly separated from cinctipes Grote, yet perhaps sufficiently so. 

 Cinctipes inhabits Cuba and southern Florida, while schausi flour- 

 ishes upon the mainland from Mexico to Argentina. The following 

 race appears not to have been characterized by Rothschild, and, 

 though not a Mexican development, may properly be considered here. 



HALISroOTA SCHAUSI RUSCHEWEYEa, new subspecies. 



Similar to //. schausi hraziliensis Rothschild, but pale, the mark- 

 ings faintly traced, and not relieved from the ground color. 



Cotypes. — One male, three females. No. 13682, U.S.N.M., Buenos 

 Aires, Argentina (G. Ruscheweyh). 



HALISIDOTA UNDERWOODI Rothschild. 



It appears to me ver}^ doubtful whether this should rightly be 

 considered as a distinct species and not a race of cinctipes Grote. 

 However, as cinctipes is well isolated geographically, and as under- 

 woodi has thrown off a form in Arizona, davisii Hy. Edwards, which 

 is probably best considered as a species, I am inclined to let the 

 names stand as Rothschild has placed them. H. underwoodi in its 

 normal Mexican form has the markings broad and fully developed. 

 My specimens have a tendency to melanism in the direction of aira 

 Druce, though I have no dark ones before me. Rothschild defines a 

 race from Trinidad and Guiana as smaller and paler with a larger 

 discoidal stigma. The following form may perhaps be separated. 



