THE CANADIAN ENTOMOLOGIST. 261 



structural differences to separate them from tricolor. They differ 

 considerably from Coquillett's description in colour markings^ and may be 

 a distinct species, but, knowing the tendency of related species such as C. 

 Kincaidii and C. jiigripes to vary in this respect, I hesitate to separate 

 them until further study. Coquillett's type is from Alaska. 



69. Crior/iiiia nigripes (Williston). — Vancouver, April 9 and 11, 

 1903, taken by R. V. Harvey. Two specimens, both females. One of 

 these has a distinct margin of yellow hairs on the hinder border of 

 abdominal segments 2 and 3. Otherwise they are identical with Willis- 

 ton's type from California in the Mus. Comp. Zool., at Cambridge, Mass. 



70. Criorhina scitula, Williston. — Taken at Port Renfrew, Aug. 10, 

 1902, and by Harvey, at Vancouver, June 22, 1902, and at Mt. Cheam, 

 Aug. 5-10, 1903. 



71. Crioprora alopex (Osten Sacken). — A specimen was sent me by 

 E. M. Anderson, taken at Victoria, April 16, 1897, and another was 

 received from Harvey, taken at Vancouver, April 12, 1902, both females. 

 I have seen no description of the female, but it is very much like the male 

 in all respects except the following : Eyes widely separated ; the yellow- 

 red pile of the front continued back upon the occiput at the middle. 

 Pile of the scutellum light yellowish ; in one specimen a few black hairs 

 on the margin ; the other has the pile entirely without black. 



72. Crioprora femorata, Williston. — A single specimen taken by 

 Harvey, at Wellington, April 15, 1903. 



73. Pocota grandis (Williston). — Harvey has taken this species at 

 Vancouver, Oct. 3, 1902, and at Mt. Cheam, Aug. 7, 1903. Two females 

 are in my possession. They are essentially like the male, differing only in 

 the separation of the eyes. The rather broad front is brownish pruinose, 

 with short dark yellow pile. On the under side the middle tarsi are beset 

 with short sharp black spines, not present on the other tarsi. 



74. Brachypalpus pulcher, Williston. — Port Renfrew, July 25, 1902, 

 and by Harvey, at Coldstream, Aug. to, 1902. A specimen is also in 

 my collection marked " Br. Col., Sept. 5, 1897." ^o\\i sexes present. 

 The species is described from Washington and Oregon. 



75. Xylota fraudidosa, Loew. — A single male specimen taken at 

 Port Renfrew, June 26, 1901, undoubtedly belongs here, though a trifle 

 larger than my eastern specimens. It has been recorded in the west from 

 Washington. 



