12 THE CANADIAN ENTOMOLOGIST 



NOTES ON SCUTELLEROIDEA FROM VANCOUVER ISLAND. 



BY DAYTON STONER, 

 Iowa City, Iowa. 



During the latter part of the summer of 1913 the writer and Mrs. Stoner 

 spent a few weeks at the Dominion Pacific Coast Biological Station, which is 

 located on Departure Bay some three miles north of the city of Nanaimo on 

 Vancouver Island. The principal object of the trip was to collect and in- 

 vestigate the marine fauna of the region and, due to the kindness of Dr. C. M. 

 Eraser, Director of the Station, this phase of our work was exceedingly profitable. 

 During our stay a few short excursions were made for the purpose of collecting 

 insects. Only general collecting was attempted, and as a result the number of 

 Scutelleroidea taken was not large. 



Practically all the collecting was done within a radius of three miles of the 

 Station, which is surrounded on the landward side by a dense growth of lofty 

 coniferous trees. Here and there are more or less open places where the sun 

 penetrates and where blue grass, timothy and clover grow to some extent. 

 Further inland are pastures and open cultivated areas with an occasional marsh 

 or lake. 



The purpose of this brief article is simply to make available definite locality 

 records for the species taken. 



List of Species. 

 Family Scutellerid.^. 

 Homaemus aeneifrons (Say). 



Not a common form in the region, less than a half dozen specimens having 

 been taken on August 26 and September 4. 

 Eurygaster alternatus (Say). 



This seemed to be the commonest scutellerid of the region, and it was 

 found on the high grass around the edges of pastures, August 25 and 26. 



Family Pentatomid^. 

 Peribalus limbolarius (Stal). 



But two specimens of this form were taken on August 26 and September 1. 

 Chlorochroa uhleri (Stal). 



One of the most abundant species of the region. Adults, and nymphs 

 in third and fourth instars were taken between August 25 and September 12. 

 ToAvard the middle of September these bugs often congregated in numbers upon 

 the blossoms of spiraea {Spircea sp.), and on one occasion twelve individuals 

 were photographed on a single blossom of this plant. 

 Euschistus euschistoides (Voll.) 



Numerous examples were taken between August 28 and September 6 in 

 pastures and from partly- cleared areas in the woods where a little blue grass and 

 clover were making an attempt to gain a foothold. 

 Euschistus conspersus (Uhler) 



A long series of specimens is at hand bearing inclusi\e dates from August 

 24 to September 12. This form was common on the long grass in pastures 

 where cattle were feeding and in the high grass around the borders of such fields. 

 The species was also taken on Gabriola Island. This rocky island lies in the 

 Strait of Georgia several miles south of Departure Bay; it is about ten miles in 



January, 1920 



