58 Journal New York Entomological Society. [Vol xvii. 



eluded the species identical and so referred them. Since that time 

 h/ rgessi Morr., has occurred in some numbers on Long Island, and 

 on comparing these carefully with examples from Nebraska and Colo- 

 rado, there seems to be no doubt that Mr. Grote was correct in describ- 

 ing his species as distinct. The eastern species has the primaries 

 comparatively shorter and broader, the ordinary spots more com- 

 pletely outlined and relieved, the median space darker, the connect- 

 ing bar between the lines broad and well developed, the interspaceal 

 black marks preceding and following the s. t. line very obscure. The 

 western form, discors Grote, is more strigate in appearance, the pri- 

 maries have the apex distinctly drawn out, and the interspaceal lines 

 are very conspicuous toward the margin, usually forming sagittate 

 marks before the punctiform s. t. line. While the ground color is the 

 same, the median space does not contrast definitely, and the connec- 

 tion between the median lines is a narrow streak rather than a bar. 

 With only limited material at hand the species look very much alike 

 and are easily regarded as races or varieties : with a series for com- 

 parison the differences are so obvious that the wonder is that they 

 could ever have been regarded as the same. 



Luperina ona, new species. 



Ground color dark umber brown, overlaid by smoky black. Head concolorous. 

 Collar with a narrow black median line tending to become lost. Thoracic disc tend- 

 ing to become umber brown, the patagia v/ith intense black submarginal lines. Pri- 

 maries almost uniformly smoky black on perfect specimens ; but as they become flown 

 the brown base becomes increasingly apparent, until the wing gets a streaked appear- 

 ance which is best marked beyond the reniform and in general through thes. t. space. 

 A slender black streak below median vein, extending to the t. a. line ; but often im- 

 perfect in rubbed examples. Basal line black, marked by geminate costal spots and 

 again on median vein. T. a. line black, geminate, more or less interrupted, rather 

 evenly oblique to the angle below the sub-median : then inwardly bent to, and again 

 outcurved below, vein I. T. p. line broken, black, more or less completely gemi- 

 nate, very even on the whole, outcurved over cell, then parallel with outer margin. 

 S. t. line a series of yellowish points set into black interspaceal streaks. Claviform 

 small, pointed, black-margined, a narrow bar extending from its tip to the t. p. line. 

 An interrupted black terminal line ; veins marked at ends by yellowish points. Sec- 

 ondaries white, with a blackish narrow outer border which is inwardly diffuse. Be- 

 neath white, primaries rather densely, secondaries sparsely black powdered. 



Expands, 1.50-I.65 inches = 37-41 mm. 



Habitat. — Arizona: Santa Catalina Mts., September; Huachuca 

 Mts., August (Barnes) ; Minnehaha, Yavapai Co., September (Hut- 

 son). 



Two males and six females in fair or good condition. The three 



