INSECTS AFFECTING PARK AND WOODLAND TREES 



659 



Harris's Prionus 



^ Tragosoma harrisii Lec. 



A large, stout, brownish beetle about 1%. inches in length, and closely resembling a 

 rather slender prionid, breeds in pine stumps. 



This species, according to Wickham, is considered by some writers as 

 identical with the North European T. depsarium Linn. He character- 

 izes it as a curious looking beetle of elongate form and 

 brownish color. The antennae are slender, the prothorax 

 small in comparison with the elytra, very hairy and armed 

 on each side with a single sharp tooth, in front of which 

 the lateral margins are convergent. The elytra are shining, 

 distinctly punctured and with numerous raised lines. 



This species probably ranges across the continent in 

 the more northern latitudes, having been reported from 

 Fort Colville Wash. Leng records it from Newfoundland 

 to Vancouver and Coney Island. The state collection con- Fig- 188 Tragosoma 



harrisii, enlarged 



tains a specimen taken by Erastus Corning at Murray Bay, (original) 

 Province of Quebec, in July or August, and it has also been captured in the 

 pine forests of the Adirondacks. 



Criocephalus agrestis Kirby 



A large, brownish black, narrow beetle about 1 inch long occurs on pines in June 

 and July, its white footless grub boring therein. 



The adult insect is a large, brownish black, narrow beetle about 1 inch 

 in length. It may be recognized by the pair of deep thoracic impressions, 

 the fine punctures on the elytra and by the third joint of the hind tarsi 

 being two thirds longer than wide, emarginate for about one half its length. 

 This beetle closely resembles A s e m u m moestu m Hald., though twice 

 as large and with longer, more slender antennae. This species is evidently 

 very abundant in Quebec, since a large series was taken at Murray Bay 

 by Erastus Corning in July or August 1878. It occurs in New York 



