INSECTS AFFECTING PARK AND WOODLAND TREES 



Loose web nests with considerable brown excrement on the needles of terminal pine twigs 



contain true caterpillars Pine web worm, Bent a m a 1 a n o g r a m m o s, p. 676 



A large, thick, pale green caterpillar, 3 to 4 inches long with pale orange head and legs 

 and 6 spined, yellow tubercles behind the head, occurs on white pine late in August 



and through September Imperial moth, B a s i 1 o n a i m p e r i a 1 i s, p. 677 ' 



A grass green, yellow and white striped caterpillar feeds on pine in the middle of 



September Harris's pine hawk moth, L a p a r a b o m b y c o i d e s, p. 679 



A dull red caterpillar banded with brighter red with a light lateral line and reddish hairs 

 in clusters, occurs on pine in late August and September 



White pine tufted caterpillar, P a n t h e a f u r c i 1 1 a, p. 679 

 A dull rusty brown, irregularly white-spotted, flattened caterpillar with series of grayish 

 tufts on each side harmonizes very closely with the bark 



Larch lappet, T o 1 y p e 1 a r i c i s, p. 680 

 A small, cylindric larva mines the leaves of various pines 



Pine leaf miner, Paralechia p i n i f o 1 i e 1 1 a, p. 681 

 Peculiar tubes of webbed-together pine needles occur in midsummer and September on 



white and probably other pines Pine tube builder, E u 1 i a po lit an a, p. 681 



Short, stout beetles from }i to nearly }4 inch long are numerous on hard pine foliage the 

 latter part of June and throughout July 



Light-loving grapevine beetle, Anomala lucicola, p. 682 

 A light brown beetle less than }j inch long is rather common on hard pine from the 

 - latter part of June till the last of August Metachromamarginalis, p. 682 



Spruce, species affecting 

 Pale green, false caterpillars feed singly on spruce the latter part of the summer 



Spruce sawfly, Pteronus integer, p. 683 

 A red-headed, brownish caterpillar about Yz inch long feeds on young, fresh spruce 

 cones Spruce cone worm, Dioryctria reniculella, p. 684 



Balsam, gall fly affecting 

 A small midge produces an oval enlargement near the base of balsam needles 



Balsam gall midge, Cecidomyia balsamicola, p. 685 



Sucking insects 



Pine, species affecting 



A small, grayish and brown plant bug 3 /,6 inch long occurs on hard pine and other trees 



and shrubs False chinch bug, N y s i u s a n g u s t a t u s, p. 685 



A small, brown plant bug % inch long Phytocoris e x i m i u s, p. 685 



P i 1 o p h o r u s c r a s s i p e s, p. 686 



