PROCEEDINGS, 1921 ]3 



A REPORT ON SOME HEMIPTERA FROM BRITISH 

 COLUMBIA* 



By H. M. Parshley. Smith College 



The entomological fauna of British Columbia is rapidly becoming 

 i^etter known, chiefly through the assiduous collecting and study of the 

 enthusiastic resident entomologists, and in due time we may look for- 

 ward to the publication of a full list of the insects of the region, a work 

 which will be of the greatest value in the study of geographical distribu- 

 tion if it is based on data sufficiently extensive to make the enumeration 

 truly representative. A great deal remains to be done, however, before 

 the knowledge of some of the orders can be considered adequate, as 

 is well illustrated in the case of the Hemiptera. In an earlier reporf^ 

 I recorded 90 species in addition to the 86 given in Van Duzee's "Cata- 

 logue," making a total of 176 known to occur in British Columbia, 

 surely fa:r less than half the number which actually inhabit the region. 

 Stoner- has recently published the record of one more (Podisus serie- 

 ventris), and the present list adds 30, bringing the total number of 

 species to 207. If we contrast this figure with the 450 of New England, 

 it is clear that there is still a good opportunity for the collector; in fact, 

 every field trip should yield unrecorded species, especially in the aquatic 

 and semiaquatic groups. 



It is worthy of remark that about half of the species recorded in 

 the former list occur also in New England, illustrating the extraordin- 

 arily extended range of many Hemiptera, but the fauna of British 

 Columbia is in reality much more distinctive than such incomplete 

 data would seem to indicate." As further collecting is done in the more 

 remote parts of the Province, the proportion of characteristic, western 

 species will rise, and we note a tendency in this direction in the present 

 enumeration, for of the thirty-two additional species (excluding those 

 occurring also in the Palaeartic region) here recorded, only 11 are to be 

 met with in New England. 



Most of the material on which this report is based was sent to me 

 for study by Mr. W. Downes, who collected much of it himself and 

 greatly enhanced its value, as is his custom, with notes, of which he 

 has permitted me to make free use. Through the kindness of Mr. C. A. 

 Frost, of Framingham, Mass., I am enabled to include records of- soine 

 specimens from Terrace, on the Skeena River, collected by Mrs. W. W. 

 Hippisley. 



Additional data are given for some of the species of my former list, 

 indicated here by an asterisk (*), and certain corrections must be made, 

 which are summarized herewith : 



♦Contributions from the Department of Zoology, Smith College, No. 79. 

 'On some Hemiptera from Western Canada, Occas. Papers Mus. Zool. Univ. 

 Michigan, No. 71, 1919, 35 pp. 



"Notes on Scutelleroidea from Vancouver Island, Can. Ent., LII:12-13, 1920. 



