160 THE CANADIAN ENTOMOLOGIST. 



run together by insensible gradations, not only in colour, but in the form 

 of the last ventral segment of the female, and it would not be surprising 

 if eventually they would have to be united, as suggested by their describer. 

 Typhlocyba bi/asciata, Gill and Bak. — Temiskamingue and Barrier 

 Lake. 



PSYLLID^. 



Psylla carpijiiy Fitch. — Not uncommon at various localities. 



Psylla, sp. — Three examples of a smaller species were taken at 

 Temiskamingue. 



SOME COLEOPTERA AFFECTING THE HONEY LOCUST. 



BY C. O. HOUGHTON, NEWARK, DEL., ENTOMOLOGIST, AGRICULTURAL 



EXPERIMENT STATION. 



On a farm near Newcastle, Delaware, there is quite a strip of honey 

 locust (Gleditschia triacantJios, Linn.), hedge, which I have visited two 

 or three times during the past two years. This hedge appears to have 

 been injured by fire at some time, and certain sections of it are now 

 entirely dead. Other sections are very thrifty, while between the dead 

 and living sections may be found parts that are partly dead and partly 

 alive. 



My first visit to the hedge was on June 12th, 1906, and my attention 

 was drawn to it owing to the large number of specimens oi Agrilus fa/lax, 

 Say, which I found upon it. Whether or not they were feeding upon the 

 leaves I did not deteimine, but it seems probable that they were. At 

 any rate, they were present in large numbers, and several were seen 

 pairing. About fifty specimens were taken in a short time — the first of 

 this species that I had ever seen. 



Owing to the presence of such large numbers of this species on the 

 hedge that day, I thought it probable that these beetles were breeding in 

 its dead or dying wood, and I resolved to return to the place the next 

 spring to collect some of this and attempt to breed A.fallax therefrom. 



A few branches which were broken off at that time and brought home 

 were found to contain Buprestid larvae. One of these which I examined 

 measured 5 mm. in length by 1.75 mm. in breadth, at the greatest width ; 

 another 6.5 mm. by 1.75 mm. The brief notes which I made on the 

 larviie at that time are as follows : "White ; mandibles brown, tipped 

 with black." 



May, igo8 



