PROCEEDINGS, 1018 13 



NOTES ON A COLLECTION OF HEMIPTERA 



I-]y W. Downes, Victoria, B.C. 



With a view to extending- the hitherto very limited Hst of Heterop- 

 tera and Homoptera known to occur in British Columbia, considerable 

 collecting has been done by the writer during the past season, principally 

 in the neighbourhood of \'ictoria, and the resulting material has been 

 submitted to specialists in the order for identification. For determina- 

 tions I am indebted to the following gentlemen : Heteroptera, Dr. H. M. 

 Parshley; Cicadidae, Mr. W. T. Davis, N.Y. ; Membracidae, Dr. Funk- 

 houser; other Homoptera, Dr. E. D. Ball. 



While the collection is necessarily as yet a very limited one. a good 

 start on the list of British Columbia Hemiptera has been made, and some 

 additional light has been thrown on the knowledge of the distribution of 

 many of the species. The majority of species were taken in the neigh- 

 Ijourhood of Victoria, or on the Saanich Peninsula to the north of the 

 city, especially near Royal Oak, and a few species were collected during 

 brief visits to the (Jkanagan in the neighbinirhood of \'ernon and 

 Armstrong. 



By far the largest number of species collected belong to the Heterop- 

 tera, and as these have not yet been fully examined by Dr. Parshley, their 

 consideration will have to be left until later, and the present brief paper 

 will deal with the Homoptera. Besides those species collected by myself, 

 a few have been received from R. C. Treherne, Vernon, B.C., and M. H. 

 Ruhman. Vernon, B.C. 



List of Species 

 FAMILY CICADIDAE: 



Okanagana occidentalis Walk. Armstrong, July 12, 1917; Saanich 

 District, June 18, 1918. (W. D.) This is the commonest Cicada occur- 

 ring in British Columbia. 



Platypedia areolata Uhl. Nelson. May 6, 1918 (R. C. T.); Arm- 

 strong, July, 1914 ( W. D.). One more species was taken but is not yet 

 identified. 

 FAMILY CERCOPIDAE: 



Aphrophora irrorata Ball. Saanich, C)ctoi)er 25, 1917 (W. D.). 



Aphrophora permutata Uhl. X'crnon. June 24. 1917 (R. C. T.). 



Philaenus leucopthalmus Linn. Saanich. August 3, 1918 (W. D.). 



P. leucopthalmus var. astulatus Fall. June 18. 1918 (W. D.). 



P. leucopthalmus var. pallidus. June 18, 1918 (W. D.). 



P. leucopthalmus var. lineatus. June IS, 1918 (W. D.). This 

 cercopid is extremely common everywhere, the three varieties noted 

 above being more usual than the type form but they all intergrade. 



Clastoptera obtusa Say. i\ugust 13, 1918 (W.D.), on alder. 



