THE CANADIAN ENTOMOLOGIST. 239 



nerviires and stigma piceous or dark brown ; abdomen punctate, apex 

 broadly truncate, the truncation slightly concave. 



Several specimens. This species does not resemble any of those 

 described from North America. In its black colour, and the truncate apex 

 of the abdomen, it resembles the European C. cuciirbitimi, Rossi. In 

 the pale face it resembles C. Marawitzii, Sickm., and C. fiavipes, Sm., 

 from China. It is therefore a species of unusual interest. 



A NEW SQUASH BUG. 



BY F. H. CHITTENDEN, WASHINGTON, D. C. 



In the course of an investigation of insects affecting cucurbits, begun 

 in a preliminary way in the season of 1897, ^^ ^ P^^^ of the official work 

 of the Division of Entomology of the Department of Agriculture, it was 

 found that we have in addition to the common squash bug, Atiasa tristis, 

 DeG., a second species sufficiently resembling it as to have readily 

 escaped the notice of the average observer, but at the same time quite 

 distinct in all its stages. This species is Anasa arifiigera, Say, and it 

 was first observed on cucurbits by the writer July 12, near Colonial Beach, 

 Va., where it occurred on cucumbers. Afterward it was taken by the 

 writer and Mr. F. C. Pratt, of the Division of Entomology, who has assisted 

 in field investigations and collections on different cucurbits, at Ballston, 

 Va., Poolesville and Seat Pleasant, Md., and on the Conduit Road and 

 at Tenleytown, D. C. At the last mentioned place it occurred in great 

 abundance on a late crop of cucumbers and watermelons. As late as the 

 29th of September, all stages of the insect were found, including the egg. 

 The present year the species was found to be nearly as abundant in some 

 localities as the common squash bug. Such was the case at Marshall 

 Hall, Md., and in one locality in the District of Columbia. It was also 

 observed on squash at College Station and Kensington, Md., and on 

 cucumber at Cabin John, Md. 



Anasa annigera appears to have very much the same habits as its 

 more common congener, preferring squash of all cultivated plants, but 

 feeding on canteloupe and other curcurbits when squash is not available. 

 It is noticeably more active than tristis, flying freely in the hot sunshine 

 and exposing itself on the upper surface of the leaves in midday. It also 

 has a later season, appearing three weeks later, according to recent 

 observations, and remaining in the field after the common species has 

 gone into hibernation. Evidently it is a southern form, and perhaps has 



