30 . TWENTY-THIRD REPORT ON THE STATE CABINET. [162] 



V. DESCRIPTION OF NEW SPECIES OF NISONIADES. 



Nisoniades Icelus nov. sp.* Plate 7, figs. 5, 6, $ . 



Head and palpi dark brown, the latter lighter beneath, and inter 

 spersed with gray or gray-tipped hairs. Antennae brown, annulated 

 with white obscurely above, with the club orange-tipped. Thorax dark 

 brown, with scattered scales of lighter brown. Abdomen dark brown, 

 with some gray scales, especially at the posterior margin of the segments. 



Anterior wings above dark brown, basally mottled with umber, and 

 sprinkled with yellow-brown and bluish-gray scales. A continuous 

 dark brown discal band (interrupted or much constricted below the 

 cell in N. Martialis, Plate 7, fig. 7) crosses the cell from the end of 

 the costal fold in the $ to the submedian nervure, with fuscous borders 

 usually obscure, and having on its superior half some bluish, hairs; 

 in N. Brizo (Plate 7, fig. 9) the borders are well-defined, black, 

 and the bluish hairs are continued over the entire length of the 

 band. The submarginal band, consisting of bluish hairs, is regularly 

 curved, parallel to the hind margin, or sometimes, as in the figure, 

 slightly receding from it as it approaches the internal margin ; its 

 borders are w T ell-defined in fuscous, the anterior one but moderately 

 sinuate on its superior half, the posterior one with six sagittate spots 

 superiorly (the second and third apical ones more elongate than in N~. 

 Brizd), thence reaching the submedian nervure in three curves similar 

 to the corresponding ones of the anterior border ; upon the band, between 

 the subcostal nervules, an indistinct elongated whitish spot (not in JV. 

 Brizo). Intermediate to the two bands, resting on the costa and extending 

 to the second median nervule, a patch of bluish scales, interspersed with 

 umber-colored ones ; thence to the inner margin, the space is umber 

 brown, similar to the shade of the posterior wings. Along the hinder 

 margin is a series of umber spots, usually crescentic in the females, 

 surrounded by bluish scales ; behind these, a narrow dark brown mar 

 ginal line. Fringe, of the color of the preceding spots, with short basal 

 bluish hairs. 



Posterior wings above, umber-brown, with two marginal rows of 

 brownish-yellow spots, usually eight in each, and two contiguous 

 smaller discal ones (not existing in N. Brizo\ separated by the cellu 

 lar fold ; the first costal spot of each row is nearly as distinct as the 

 others (in N. Brizo, obsolete). 



* A description of the male genital armature of this and the following species, has 

 been published by Messrs. Scudder and Burgess in their paper on &quot;Asymmetry in the 

 Appendages of Hexapod Insects &quot; (Proc. Bost. Soc. N. H., 1870, vol. xiii, pp. 287, 288). 



