PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 

 Fourth Series 



Vol. XI, No. 11, pp. 135-136 October 15, 1921 



XI 



OUR NORTH AMERICAN SPECIES OF STRONGY- 

 LOCORIS (HEMIPTERA) 



EDWARD P. VAN DUZEE 

 Curator, Department of Entomology 



1. Strongylocoris stygicus Say 



There can, I think, be no question as to the identity of 

 Say's species. In this, as in the allied forms, the antenna? 

 of the female are pale, with the base of segment I and ex- 

 treme base and apex of II, black, and III and IV dusky. I 

 have taken this species at Montreal, Canada, Portland, Me., 

 Wellesley, Mass., and Buffalo, N. Y., and have received it 

 from Quinze Lake, Quebec, and Washington, D. C. 



2. Strongylocoris atratus Uhler 



Closely allied to stygicus, but distinguishable by the 

 shorter second segment of the female antennae and the form 

 of the male clasper. The apex of the dextral clasper shows 

 considerable variation in the length of the "comb teeth" but 

 all conditions seem to occur connecting the extremes, indi- 

 cating intraspecific variation only. This species averages 

 larger than stygicus. I have it from Ottawa, Ont., Mon- 

 treal, Canada, Bretton Woods, N. H., Yaphank, N. Y., Ft. 

 Collins, Colo., Cloudcroft, N. Mex., and San Diego, Calif., 

 and in the collection of the California Academy of Sciences 

 are specimens from several localities in California south of 

 Sacramento. An examination of Uhler's types shows that 



