58 Journal New York Entomological Society. [Voi. xxx. 



on July 4, 1919. A number of specimens were seen from Cascade/ 

 Idaho, and one from Iron County, Utah; Humbolt County, California; 

 Klamath Falls and Ashland, Oregon. 



The larvae, pupa; and mature adults of this species were dug from 

 living aspens (Populus trcmuloidcs) in Grant County, Oregon, June, 

 1914. They were found most frequently in the smaller trees, where 

 they caused patches of the bark to turn black and at times peel off. 

 Their mines have a tendency to extend horizontally much more than 

 vertically, causing swellings on the trunk. The trees seem to suffer 

 little from the attacks, as they retain their thrifty appearance in spite 

 of the borers, whose mines often extend to the very center of the tree. 



Enemies. Two species of parasitic Hymenoptera were taken from 

 the mines. 



Poecilonota costicoUis Laporte and Gory. 2 



This species was described and figured by Laporte and Gory as 

 Biiprestis costicoUis in 1841. 



It is stated that the species was taken in large numbers in Louisiana. 

 It is undoubtedly identical with P. thurcura, which Say described from 

 Louisiana in 1832. 



Poecilonota erecta Gory. 



The (Buprcstis) P. erecta of Gory was described^ from a specimen 

 named but not described by Dejean in 1837. It is impossible to sep- 

 arate erecta from the variable cyanipcs of Say. It has been placed in 

 synonymy by many others and attempts have been made from time to 

 time to revive the name as a variety and occasionally to give it specific 

 standing. However, no author has yet brought out any definite char- 

 acter by which it can be separated from cyanipcs. The latter being a 

 species of very wide distribution is bound to present considerable vari- 

 ation, and, as pointed out in the discussion of that species, there are 

 several color phases; but if one attempts to base a species on color 



1 Specimens from Idaho and eastern Oregon have a more roughly punc- 

 tured thorax, strial intervals more elevated and prominent and are of a more 

 greenish color. 



2 Laporte et Gory, Monographic des Buprestidse, Vol. IV, p. log, pi. 19, 

 fig. 107, 1841. 



■''Laporte et Gory, Monograph des Buprestidse (Suppl.), p. iio, pi. 19, 

 fig. 108, 1 84 1. 



