INSECTS AFFECTINi; I'ARK AND WOODLAND TREES 6<S3 



injurious to the tree, though usualK" taken at the ha', 

 of the needles. This species probably has an exten 

 sive range, as it has been recorded from North Can 

 lina and Kansas. The larva are probably root feeders 



Spruce sawfly 



Plcromis integer Sa)" 



Pale green, false caterpillars feed singly on spruce the latter ^ a 

 ])art of the summer. Fin. u^ .Mct.ichrcma 



^ . . m .T r i; i n ;i I i s, cnLtrjied 



This species is Stated by I)r Packard to hn com- (orisin..!* 

 mon over the Northern States and may at tim(-s prove obno.vious. It occurs 

 on spruce in Maine during the latter part of the summer and feeds singl\-, 

 not being gregarious as in the case of many species. He states that pos- 

 sibly the fly appears in the fall, though probably it winters in the cocoon 

 and may be found abroad in the early |)art of June. The larva and its 

 cocoon have been descriljed l)y I)r I'ackard as follows': 



Larva. The bod\' is long, broader than the head ; pale pea green ; of 

 the color of the leaves of the s])ruce among which it feeds. The head is 

 smooth, of the same color as the body, with a dark patch extending upward 

 behind each eye. Body not spotted, but with a dorsal dark green stripe, 

 bordered on each side with whitish glaucous green. Along the body is ^ 

 lateral conspicuous broatl white stripe, the stripe much scalloped below. 

 Body beneath and abtlominal legs uniformly green ; thoracic legs pale 

 honey yellow, except at base. Length 17 mm. 



Cocoon. Of the usual oval cylindrical form ; of a pale horn color, 

 of the usual density, the walls i)eing opaqiur. Length 13 mm; diameter 

 4 mm. 



The adult sawlly is about '4 inch long, yelhnv with black or dark 

 brown markings, e-xcept on the sides and venter of the abdomen, which are 

 a greenish tinge. 



Bibliography 



1890 Packard, A. S. U. S. Ent. Conx. 5th Rep't, p. 838-39 



1896 Marlatt, C. L. U. S. Dep't .\gric. Div. Ent. Tech. Ser. 3, p. 69 



'Possibly the larva of another species. Dyar records Pteronus integer .Say 

 as an oak feeder. N. V. Ent. Soc. Jour. 1898. 6:122. 



