58 BULLETIN 48, UNITED STATES NATIONAL MUSEUM. 



what concave, the apex pointed, prominent, and the onter margin 

 oblicjnely rounded; in the female the wings are broader, the costa not 

 depressed, sometimes even a little arched. 



This gfeniis is fairly well marked by the characters given. Tlie simply 

 ciliate antenna! structure without even a tuft of haii at basal third is 

 (piite unusual, and tliis, with the very distinctive wing- form, makes it 

 readily recognizable. Its nearest ally is Tcfdnolita, in which the male 

 antenna' and the wing form only are different. 



Three s])ecies are referre<l to the genus; two of them, B. carddriniiVis 

 and B. n)r(]i<ili.s, decidedly variable forms; the other, B. inferior, fidily 

 constant within my experience. 



They differ stru(;turally, yet may be easily confused, small forms of 

 B. c((r(i(lri)i((Iis frequently doing duty for />'. inferior. In B. carddri- 

 nalis the markings are always fairly obvious and usualiy. distinct; the 

 reinforni is often dusky or blackish, the median shade is ol)vious, and 

 the size is larger than any B. inferior I have ever seen. Tlie male 

 antenna' are furnished with lateral bristles. B. inferior is smaller, as its 

 name imports, more evenly gray in color, somewhat wider winged, with 

 the markings scarcely traceable, and the reniform not black marked in 

 any specimen seen by me. The male antenme lack the lateral bristles 

 on the Joints, the ciliations scarcely as prominent even as in the female: 

 but there is a rather evident serration and a somewhat marked covering 

 of coarse scales. 



B. medialis resembles B. caradriiialis in inacnlation yet more closely 

 in some cases, but is of the size of inferior. The male antenna^ dift'er 

 obviously, the longer lateral bristles being reenforced by distinct and 

 numerous ciliations which at once distinguish the species. In macula- 

 tion the ordinary spots are usually present and distinguished by a 

 broad, diffuse margin, the center, even in the orbicular, i)ale. This 

 latter character is distinctive when it is visible. Sometimes this spot 

 is wanting, however, and then it becomes difficult to distinguish the 

 forms except by the size and general habitus. 



ANALYSIS OF THE SPECIES OK BLEPTINA. 



Markings iisnally obvious; the ordinary spots distinct. 



Size larger, average 28 mm. ; antenn;i' nf male with moderate lateral hristles, 



CAKADKINALIS. 



Size smaller, average 23 mm. ; antenna- of male with longer and stouter lateral 



bristles, reenforced by numerous ciliations medialis. 



Markings obsolete, ordinary spots small or feebly marked; antenna' of male ciliated 

 merely ; size small, average 23 mm ixfekior. 



Bleptina caradriiialis, (ineu<^e. 



1854. Gnende, Species (Jeneral, Deltoides, 67, lilejilina. 

 1859. Walker, Cat. Brit. Mus., Heterocera, XVI, 120, Blepfina. 

 1872. Grote, Trans. Am. Entomological Soc, IV, 93, Bhpthia. 

 1878. Grote, Bull. U. S. Geol. Surv!, Ill, 799, Bleptina. 



cloiii((sali)i. Walker. 

 1859. Walker, Cat. Brit. Mus., Iletorocera, XVI, 105, Eerminia. 

 1877. Grote, Canadian Entomologist, IX, 29, pr. syn. 



