NATURAL SCIENCES OF PHILADELPHIA. 61 



his; the exterior line curves closely around the reniform and is 

 much drawn in below it, thus narrowing the median space; the 

 subterminal line is white, jagged, and irregular, preceded and fol- 

 lowed by black stains ; a black terminal line, followed by a clear 

 white line at the base of the gray fringe. 



Posterior wings white, without discal dots and with a black 

 suffuse terminal border ; the nervules are tinged with black ; fringe 

 white. 



Beneath, the anterior wings are gray, with a few scattered white 

 scales on the costa and terminal margin ; posterior wings white, 

 with traces of a black costal and terminal border. 



Hab. Colorado, Aug. 18 (No. 47, Mr. T. L. Mead). 



Mr. Mead's collection is particularly rich in species of the genus 

 Oncocnemis, this being the fifth he obtained in Colorado. We de- 

 dicate it to him in recognition of his ability as a collector as well 

 as a student ; the specimens obtained on a single summer's tour 

 having furnished material for at least half a dozen long papers by 

 different lepidopterists. 



0. meadiana approaches to 0. chandleri, but it is a much 

 smaller and less robust insect; the terminal band of the posterior 

 wings is not regular and well-defined, but diffuse and extends into 

 the white median space along the nervules. 



Hadena suffusca, nov. sp. 



Expanse 44 mm. Length of body 19 ram. 



Allied to H. apamiformis, Guen., and agreeing with that spe- 

 cies in its structural characters, excepting that the third palpal 

 joint is perceptibly longer, and that the middle dorsal abdominal 

 tufts are obsolete. 



Head and thorax light brown. 



Coloration of the anterior wings brown on a light gray ground ; 

 the brown tints ai'e strongest on the costa and in the upper part 

 of the median space ; along the inner margin and in the subter- 

 minal space the ground color prevails ; the subterminal line is 

 preceded by a series of brown blotches, and following it the termi- 

 nal space is tinged with bluish. 



The ordinary lines and spots formed as in H. apamiformis, ex- 

 cept that the interior line extends direct to the inner margin and 

 does not form an outward projection on the submedian nervure. 



Posterior wings as in the related species. 



Beneath both wings are strongly suffused with brown. 



