426 NEW YORK STATE MUSEUM 



INSECTS OF MINOR IMPORTANCE AFFECTING FOREST 



TREES 



This divis'on is purely an arbitrar)- one and maile as a matter of con- 

 venience because it enables the brin;^nni;- tOL,rcther of accounts relating to 

 species which are more or less injiu-ious from year to year. Many of the 

 insects noticed in this latter section, are of considerable im])ortance and 

 occasionally may cause serious injurw This division is defective in that it 

 involves looking- in several places in order to learn about the insects 

 affectino- a tree, and this difficulty is remedied in part by indexing all the 

 species under their food plants as well as under their generic and specific 

 names. 



INSECTS AFFECTING DECIDUOUS TREES 



Borers in living or relatively sound wood and bark 



A stout lieetle about an inch lung and beautifully marked with dark brown, silvery and 



reddish yellow, bores in hickory. . . Beautiful hickory borer. ('. o e s \t u 1 c h r a, ]i. 431 

 A brownish gray beetle about y,6 inch long, and with very long, slender antennae, occurs 



on oak L i o ]) u s p u n c t a t u s, p. 43 2 



A small, grayish, black-spotted beetle about '4 inch Imig, may be bred from dead twigs of 



oak and otiier trees II y p e r p I a t y s ni a c u 1 a t u s, p. 432 



A narrow, triangular, blackish beetle J4 inch long, marked with lines and spots of 



yellowish or orange, occurs on various flowers in June 



M o r d e I I a o c t o p u n c t a t a, p. 433 

 A slender, flattened beetle witii red prothorax and bluish wing covers, mines as a larva 



the inner bark of dead and dying trees; also injurious to tan bark 



Variable oak borer, Ph y m a t o d e s variabilis, p. 433 

 A stout, brownish, gray-spotted, long-horned beetle about an inch in length, may be bred 



from oak, walnut and hackber:'y 



Dusty oak borer, R o m a I e u m a t o ni a r i u m, p. 434 

 A stout, lirown, grayish mottled, long-horned beetle occurs in midsummer on oak and 



various trees, the larva is an oak and pine borer. U r o g r a p h i s f a s c i a t u s, p. 434 

 A black beetle about '2 inch long, with brick-red wing covers marked with reddish 



yellow spots, 01 curs on scrub oak T y p o c e r u s v e I u t i n u s, p. 436 



A small grayish weevil 's to ' ',« inch long occurs on oak foliage, the lar\'a tunnelling the 



wood Gray sided oak weevil, P a n d e I e t e j u s h i I a r i s, p. 436 



A black, clearwing moth with red-spotted wings and yellow-banded legs and abdomen, 



may be reared from oak galls S e s i a r u b r i s t i g m a, p. 437 



