24 THE CANADIAN ENTOMOLOGIST 



of Ehrhorn's species, and so it is with this information that the 

 writer has arrived at a definite conclusion relative to the synonymy. 

 The main characteristic of this species, as mentioned by the writer 

 in the August number of this journal, is the presence of projecting 

 glands in the anal lobes as well as at various points throughout 

 the body of the insect. Ehrhorn overlooked this prominent 

 character in his description, and in so much as that description 

 is lacking in certain details, the few points of similarity mentioned 

 did not lead the writer to suspect that the Missouri species was 

 the same as P. stachyos Ehr. 



A. H. HOLLINGER, 



Missouri Agricultural Experiment Station, Columbia, Mo. 



1 

 SOME HETEROPTERA FROM THE PARRY SOUND 



DISTRICT, ONT. 



BY J. R. DE LA TORRE BUENO, WHITE PLAINS, N.Y. 



In 1915 Mr. H. S. Parish collected Heteroptera in the Parry 

 Sound District, Ont. His collection was not very extensive, 

 owing to the time of the year he was there. It was typical of the 

 temperate part of Eastern' North America. The results are pre- 

 sented here as a fragment towards our knowledge of the fauna of 

 'Canada. 



The species are arranged according to Van Duzee's Check 

 list, for the sake of conformity, but it should be understood that 

 1 do not at all subscribe to that arrangement, as I deem it phylo- 

 genetically unsound, for all that it is based (with changes) on the 

 late Prof. Renter's last work. This, I am sure, he would have 

 modified, had he lived, as he would have come to recognize, e. g., 

 Tthat the Nepidae bear no close relationship to the Belostomatidae. 

 Branched antennae, in subaquatic forms, are no indication of re- 

 lationship else the aquatic bugs and beetles are akin; they only 

 jndicate convergence through function. . 



Homcemus csneijrons Say, July 10, 26; Aug. 5. 



Mormidea lugens Fabr., June 14, 1 sp. 

 . Euschistus euschistoides Voll., June 10, 14; July 1; 4 sp. 



Euschishis tristigmus Say, June 8; 1 sp. 



Coenus delius Say, June 28; 1 sp. 



.January, 1918 



