1870.] 295 [Burgess. 



apical margin is nearly straight; in reality it is very broadly and 

 regularly excised. 



This Texan species resembles N. tristis of California in the white 

 fringe to its wings. 

 Nisoniades Ovidius nov. sp. Fig. 8. 



Upper organ : Very similar to that of JST. funeralis, but differing 

 from it in having the dorsal crest flattened above, thrust more back- 

 ward, in having slenderer terminal hooks and the dependent, ap- 

 pressed denticle not so broad and more excised at tip. 



Left clasp: Main body much as in N. funeralis, but slightly 

 broader, the upper portion of the base not so full, and not followed 

 by an excision. Blade directed backward and slightly upward, 

 pretty long, compressed, moderately slender, regularly and slightly 

 tapering, the apical half curving inward a little, the upper half at 

 base, nearly the whole at tip, curving over gradually inward, the 

 apical portion tapering rapidly by the excision of the lower edge, 

 bent and twisted a little so as to be directed inward, considerably 

 backward, and on its basal portion slightly upward, terminating in a 

 somewhat blunted point, armed with minute serrulations ; basal process 

 consisting of a subspatulate, compressed lobe, half as long again as 

 broad, directed upward and scarcely backward, curving over inward 

 considerably, its apical border curved but slightly angulated on either 

 side, and broadly bordered with minute, but not very fine spinules; 

 it is about as long as the width of the blade just beyond, seen lat- 

 erally. Lobe very broad and short, tapering very rapidly, apical 

 margin straightly docked, anterior and posterior borders equal in 

 length, but the posterior angle produced and broadly and abruptly 

 bent over inward, so as to give the lobe the appearance of being 

 directed backward more than upward. 



Right clasp: Main body more slender than on the opposite side, 

 resembling the left clasp, but pretty deeply excised previous to the 

 lobe; blade very similar to that of N. funeralis but considerably 

 shorter, yet of equal width, directed a little upward, bent more in- 

 ward, the tip curved less inward, the outer surface not so strongly 

 twisted; basal process quite similar to that of N. funeralis. Lobe 

 almost as broad as in N. funeralis and otherwise similar, but the pos- 

 terior margin is much more produced, the outer angle more prominent 

 and incurved, and the apical margin, even on a side view, is con- 

 spicuously excised. 



Florida. 



