28 1 THE CANADIAN ENTOMOLOGIST. 



throughout with olivaceous brown. The orbicular varies from small and 

 nearly round, dark-centred, and completely defined, to large, oblique, 

 ovate or irregular, uniformly pale, incomplete above, sometimes produced 

 to a point posteriorly. The reniform sometimes runs back, and in one 

 specimen fuses broadly with the orbicular. The t. p. line varies from 

 moderately dentate to very strongly so. The median band is often not 

 merely constricted but actually divided in the submedian interspace by 

 the anastomosing of the pale-filled t. a. and t. p. lines. This variation 

 appears to me to cover Sir George Hampson's diagnosis of acuiissi?na, of 

 which I have examined the male type from Montreal in the British 

 Museum, figured by a woodcut in the Catalogue. I doubted their 

 distinctness when I saw both in the British Museum, and the doubt has 

 augmented considerably since seeing more material. I refrain from direct 

 reference till I have recompared specimens with both types. Acutissima 

 seems to be characterized by the very strongly dentate t. p. line, and the 

 obliquely V-shaped orbicular, the V being slightly curved. 



As yet I have seen nothing under the name of confragosa that I 

 suspect of being distinct. I have not seen the description, and the type, 

 according to Smith's Catalogue, is in Abbe' Belanger's collection, wherever 

 that may be."^ Hampson's figure of a Wisconsin specimen in the Washing- 

 ton Museum does not help me, being well within the observed variation. 



177. Hyppa sp? — This is not xylhioides, meaning thereby the species 

 commonly passing under that name in the east, which has male antennal 

 branches about one-third longer. There are slight difi"erences in the 

 arrangement of colour and shades, but I had never suspected them to be 

 of specific value until I noticed the antennal differences, which, so far as 

 I have observed in a large number of specimens from many localities, are 

 quite constant. Species in this genus are not, as a rule, very variable, 

 and the colour difterences in this case are far less than what I often claim 

 to denote mere local variation in other genera. But though inclined to be 

 evanescent, they appear to be correlative with the antennal differences, 

 suggesting that they are peculiar to the species. I have a fine male of 

 xyliiioides from as far west as Miniota, Man,, whilst of the distinct Calgary 

 form I have a good series from Winnipeg and vicinity from Mr. Wallis, 

 who, so far, has not sent me xylinoides male. The Calgary form also 

 occurs at Kaslo and Ainsworth, B. C, and, I think, on Vancouver Island, 

 though I have only poor females from thence, and I am not sure. B. C. 



*Laval University, Quebec (per A. F. W. in litt.). 



