212 ENTOMOLOGICAL NEWS [July, '22 



ination of series from various localities that the differences 

 are constant. 



4. Distinct species may possess genitalia indistinguishable 

 from each other. Example: Oidaematophorus homodactyhis 

 Wlk. and O. clliottii Fern. 



TRICHOPTILUS PYGMAEUS Wlsm. A single fragmentary specimen from 

 Wellington, British Columbia, June 30, seems to belong here. 



PLATYPTILIA TESSERADACTYLA Linn. One $ , Princeton, British Colum- 

 bia, June 20, confirms the occurrence of this species in British 

 Columbia. A second specimen from Vernon, B. C, sent in by Mr. 

 Blackmore, is much browner than any other North American 

 specimen seen by the writer. It is quite like European specimens. 



STENOPTIUA MENGELI Fern. One specimen from Mt. McLean, British 

 Columbia, 5000 ft., Aug. This specimen is much paler than the 

 Greenland type series, and even paler than the single Colorado 

 specimen mentioned in the Rci'ision, due to the paler gray shade 

 and the more extensive pale over-scaling on the inner part of the 

 primaries. The costal lobe has an evident dark dash and the dot 

 at the base of the cleft is conspicuous. This specimen extends 

 the known range of the species remarkably, and strengthens the 

 writer's belief, as expressed in the Revision, that it may prove to 

 be circumpolar. 



OIDAEMATOPHORUS occiDENTALis Wlsm. Two specimens. Vavenby, 

 July 25, and Fort Steele, both British Columbia, August 15. 



O. MATHEWIANUS Zell. Specimens from Kaslo, Mt. McLean and 

 Lillooet, British Columbia, Aug., are much whiter than California!! 

 specimens, with no discernible brownish shades. 



O. GRISESCENS Wlsm. Kaslo, British Columbia, August. 



O. FIELDI Wright. Two rather faded specimens from Atlin, British 

 Columbia, appear to belong here. They check by both genitalia 

 and superficial characters, excepting the rather dull brown color, 

 and only the remarkable extension of range suggests any uncer- 

 tainty. 



O. PHOERUS B. & L. Another British Columbia specimen taken at 

 Kaslo, June 22, 1910, confirms the occurrence of the species this 

 far north. 



O. FISHII Fern. One 9, Sioux City, Iowa, Sept. 3, 1921. An excellent 

 specimen which seems referable only to this species, but it is as 

 dark as California males. With the possible Manitoba record 

 mentioned in the Rci'ision, it suggests that the species may b^ 

 found to range well to the north, becoming darker in higher lati- 

 tudes. 



O. IOBATES B. & L. One 9, Sioux City, Iowa, Sept., 1921. This speci- 

 men extends the range of the species quite unexpectedly, but it is 



