THE CANADIAN ENTOMOLOGIST. 175 



314. M. renigera, Steph. — Common July to middle Aug. 



315. Af. iucina, Smith. — Fairly common. July and Aug. For 

 discussions on the synonomy of the oUvacea and coinis group, vide Trans. 

 Am. Ent. Soc, XXVII.. 230, et seq., June, 1901; Journ. N. Y. Ent. Soc, 

 XI., 1903, p. 14; and Proc. U. S. Nat. Mus., XXVII., p. 853, 1904, the 

 latter being Dr. Dyar's " Kootenai list," previously referred to. I 

 submitted a good series of Calgary specimens to Prof. Smith two or three 

 years ago, and he referred them io iucina, remarking that they seemed "to 

 emphasize the difference from olivacea and the close relationship to 



altua I think you prove fairly well that we have races only. 



But altua and Iucina, though closer than I originally supposed, are not 

 thereby brought nearer to olivacea." Unless he has changed his opinion, 

 his listing them as all distinct is perhaps a trifle misleading. Lucina was 

 described from Manitoba and Yellowstone Park, Wyo., and I have a $ 

 co-type and two other $ $ , much alike, from Winnipeg. Altua was 

 described from Glenwood Spgs., Colo.; South Dakota ; and Hot Springs, 

 New Mexico (one 9 , elevation 7,000 feet). The latter specimen Prof. 

 Smith has kindly sent me as a co-type, together with two Glenwood Spgs. 



99. I can match the altua 9 9 much more nearly in my Calgary 

 series than I can my Winnipeg lucina $ ^ . The latter to my eye have 

 more of a tendency to an olivaceous shading than is visible anywhere in 

 the local series. Beyond this I have had no opportunity for comparison 

 with other material. Viewed by itself, my series varies from untinted 

 shades of light and dark gray in the $ $ , ^o dark 9 ? vvithout contrasts. 

 The majority of the specimens are, however, tinted, especially in basal 

 and s. t. spaces, the tints ranging from yellowish green, through sienna 

 brown, to an almost rosy red. This often is faintly diffused throughout 

 the specmien. As Dr. Dyar seems to have studied an enormous amount 

 of material, a copy of his latest reference of the names as given in the, 

 Kootenai list may not be out of place. 

 Olivacea, Morr. Atlantic region. 

 obscurior. Smith, 

 race lucina, Smith. Western prairies. ' 



race altua, Smith ( = ? vau-media, Sm.). Rocky Mountains. 



megarena. Smith, 

 race peiita. Smith, Pacific coast and mountains. 



