290 Natural History Bulletin. 



are of a species new to me. However it would be rather 

 unsafe to describe them from alcoholic specimens without 

 other species for comparison. 



Sub-Order HOMOPTERA. 

 Family membracid^. 



Ceresa melanog aster Osborn n. sp. Greenish-yellow, 

 frontal horns short. Body black beneath. I^egs marked 

 with black. General form of Ceresa brevicornis Fitch. 



Head yellow in front, no conspicuous freckles, margin 

 whitish and contrasting strongly with the black beneath. 

 Face black beneath, narrowly margined with yellow, beak 

 black. Pronotum with rather short blunt horns, the lateral 

 margins of front curving out to base of horns and the space 

 between the horns slightly convex; greenish-yellow with a 

 paler line running from the eyes along the anterior lateral 

 margin of pronotum to base of horn, thence along front to 

 dorsal ridge and extending in a somewhat broken line to near 

 the tip of the pronotal spine. EWtra immaculate, veins pale 

 yellow, wings with brown veins. Tergum yellow. Body 

 beneath pitchy black. Legs yellowish, the femora more 

 or less completely banded with black, or at least with a black 

 patch or stripe on the upper side. 



This species approaches very closely in general form to 

 Ceresa brevicornis Fitch, but the lateral margins of pronotal 

 front curve outward instead of being rectilinear and the horns 

 are shorter and more obtuse, while the deep black color of 

 the entire under surface of the body distinguishes it from any 

 species known to me. Compared with bubalus it is smaller, 

 the pronotal horns are very much shorter and the pronotum 

 is as a whole narrower. 



Described from three alcoholic specimens, all females, col- 

 lected by Mr. Frank Russell at Grand Rapids, Lake Win- 

 nipeg, N. W. T. 



