110 THE CANADIAN ENTOMOLOGIST. 



orange observable only behind the s. t. line. These specimens are 

 numbered 246, 247, 527, 528, 529, two unnumbered. There can hardly 

 be a specific value due to the presence of the orange scales. Throughout 

 the same characters of ornamentation prevail. With other six males no 

 orange is apparent ; the green approaches a bluish tinge, with possibly a 

 clearer ground to the wing. Of these three were taken in May, two in 

 August, and one in November. I cannot regard them as differing from 

 hydromeli ; there are a very few orange scales behind the more isolated 

 spot of the s. t. line, between the second and third nervule, in the Nov- 

 ember $ . At the present writing I "do not feel justified in expressing the 

 difference by a name. Two of these are numbered 248 and 531. Two 

 other males are different in the total absence of all green color, the pre- 

 vailing colors being white and blackish. The 10th and nth of August 

 are the dates of their capture, and they are numbered 530. It may be 

 well to note this difference, whether it be specific or not, expressing it by 

 the name fusca. This name is based on perfectly fresh specimens, not 

 faded ones, originally, perhaps, green. There is the slightest possible 

 trace of a warm tint behind the s. t. line. On the costa of the hind 

 wings there is a little shading, the usual faint pale band being apparent. 

 In these two examples there is no essential difference other than noted 

 from the rest of the specimens. As is usual, the t. a. line is denticulate 

 on the costa, then waved and geminate, the white costal filling being 

 present in a marked degree, as well as the white filling to the sub-basal 

 line. From a casual glance at these insects and from the numbers of 

 Mr. Belfrage, I was led to expect two or three species. Now I have to 

 record only one, yet fusca may hereafter lay claim to specific value. 



Lederer, in writing of the genus Oncoc/iemis, says that the species are 

 found in the Ural and Altai Mountains, and we have no information of 

 any other European locality. Mr. Grote first discovered it in this 

 country, as found in Colorado, thus stamping it more thoroughly, as he 

 thought, as a mountainous insect. But lately it has been captured in 

 three widely different localities. O. riparia Morrison = Cha7idleri Grote, 

 found on Staten Island, N. Y., by Mr. Fred. Tepper ; O. Chandleri, found 

 in Erie Co., N. Y., by Miss Mary E. Walker ; O. augustus Harvey, col- 

 lected by Mr. Belfrage in Bosque Co., Texas. Mr. Grote has just 

 described another species, O. Saundcrsiana, Grimsby, Canada (Mr. 

 Pettit). We have here a very wide range, showing conclusively that its 

 habitat is of the low as well as the high lands, of the south as of the 

 north. 



