34° NEW YORK STATE MUSEUM 



Two larger forms occasionally taken with the above, are much rarer 



P i s s o d e s d u b i u s and P. a f f i n i s, p. 401, 402 

 Two small, jet black weevils not over l6 inch in length, are occasionally abundant in 

 association with the white pine weevil 



Magdalis perforata and M. a 1 u t a c e a, p. 402 

 Short brown needles on the tops of hard pine, specially if there be a small pitch mass near 

 the base of the tree, is an indication of the work of this insect 



Pine tip moth, P i n i p e s t i s zimmermani, p. 403 

 Small yellowish larvae infest the new growth of several pines, spinning a delicate web 

 around the bud and mining both the twig and bases of the leaves 



Nantucket pine moth, E v e t r i a f r u s t r a n a, p. 405 

 An associated similar species is much rarer 



Pitch pine Retinia, E v e t r i a r i g i d a n a, p. 407 

 Masses of pitch usually on the upper side of the smaller limbs and twigs of hard pine, 

 cover the entrance of a burrow made by a small, yellowish white caterpillar about ^ 



inch in length Pitch twig moth, E v e t r i a c o m s t o c k i a n a, p. 407 



Footless orange grubs occur in colored or whitish pitch masses on the underside of pitch 

 pine branches Pitch midge, Cecidomyia resinicola, p. 410 



Insects affecting the leaves 



Dirty, yellowish, red headed, black spotted false caterpillars feed in clusters on the outer 

 branches of pines from which they strip the leaves 



LeConte s sawfly, Lophyrus lecontei,p. 413 

 Yellowish, black headed, black spotted, false caterpillars nearly an inch in length, defoliate 

 whi L e and hard pines from midsummer tdl late fall 



Abbott's pine sawfly, Lophyrus a b b o t i i, p. 414 

 Clusters of black headed, dark green, dark striped false caterpillars about ^2 inch long 



defoliate fir, spruce and pitch pine Fir sawfly, Lophyrus a b i e t'i s, p: 415 



Spruces dying in masses or clumps of greater or less extent are very likely affected by 



this species Spruce bud worm, T o r t r i x f u m i f e r a n a, p. 416 



A greenisn yellow sawfly caterpillar frequently defoliates larches in midsummer 



Larch sawfly, Lygaeonematus e r i c h s o n i i , p. 418 

 Shortened, deformed needles of pitch pine having a basal enlargement occupied by 

 a thick, orange colored larva 



Pine needle gall fly, Cecidomyia pini-rigidae, p. 423 



