INSECTS AFFECTING PARK AND WOODLAND TREES 



A large, brownish, yellow-marked and yellow-banded, clearvving moth with a wing spread 



of i ^ inches, bores as a larva in ash M e m y t h r u s asilipennis, p. 464 



A sawfly larva bores in the partly decayed wood of standing birch and makes a gallery 



about yk inch in dianitfter Xyphidria p r o v a n c h e r i, p. 465 



A horntail borer making moderately large, cylindric burrows in decaying birch 



Slender birch horntail, Konowia attenuata, p. 466 

 A flattened, brilliantly colored, purplish or bluish beetle about J4 inch long, occurs 



in May on birch and other deciduous trees C h r y s o b o t h r i s a z u r e a, p. 467 



A slender, brownish beetle ranging from about ?/( to nearly inches in length, bores in 

 the larval stage under the bark of yellow birch and maple 



B e 1 1 a m i r a s c a 1 a r i s, p. 467 

 A brownish, white-striped caterpiller about 1 inch long, bores commonly in herbaceous 

 stalks and the more tender twigs of maple and ash 



Stalk borer, Papaipema n i t e 1 a, p. 468 

 A brownish, cylindric beetle works in the stumps of recently cut yellow birch, causing an 

 excretion of sap, which gums the rust-colored borings to the outside of the affected 



wood Birch bark borer, Dryocoetes sp. p. 468 



A small, black beetle with gray or yellowish gray vestiture, is sometimes bred from willow 



S a p e r d a m u t i c a, p. 469 



"A blue black, clearwing moth having a wing spread of "y% inch, bores in willow in the 



larval stage Sesia albico r n i s, p. 469 



A steel blue, clearwing moth with a Woad abdominal band and the fore wing tips red, 



bores willow canes in the larval stage t Sesia bolter i, p. 470 



A black, clearwing moth with three conspicuous yellow abdominal bands, lives in the 



larval stage in Saperda galls on willow and poplar 



Three banded clearwing, Meraythrus t r i c i n c t u s, p. 4; 1 

 A large, brown, yellow-marked, clearwing moth having a wing spread of 1^ inches, lives 



as a larva in willow and poplar trunks Aegeria tibialis, 11.472 



A large, brown and yellow-marked, clearwing moth having a wingspread of 1^ inches, 



lives as a larva in roots of willow and poplar Aegeria apiformis, p. 472 



A rather stout, blackish beetle irregularly marked with gray, occurs in June on poplar and 



hickory Acanthoderes d e c i p i e n s, p, 473 



Girdling the trunks of sapling poplars or running a mine around them, causing a swelling 



twice the diameter of the tree, a cylindric, slaty gray beetle about f6 inch long 



Saperda concolnr, p. 474 

 A small, brown or black, coarsely punctured beetle about ^ inch long, may be bred from 



galls of balsam poplar Saperda p o p u 1 n e a, p. 474 



