REPORT OF THE STATE ENTOMOLOGIST 1901 859 
FOREST INSECTS (203-51) 
General works on the group 
Fitch, Asa. Noxious and beneficial insects of New York. 4th rep’t, 
ie PD. 5-61; Sth rep’t, ’58. p. 1-74. 
Packard, A. S. Forest insects. U.S. ent. com. Sth rep’t, 90. p. 1-957. 
Hopkins, A. D. Catalogue of West Virginia forest and shade tree 
insects. W. Va. agric. exp. sta. Bul. 32. ’98. p. 171-251; Pre- 
liminary report on the insect enemies of forests in the northwest. U. S. 
dep’t agric. div. ent. Bul. 21, n.s. ’99. p. 1-27. 
Woodborers, various species. 
203 Xiphydria provancheri Cr. A borer in paper 
birch, Adirondack region. | 
204 Carpenter moth, Prionoxystus robiniae Peck. 
A serious enemy of maple and oak trees. 
205 Pitch pine twig Tortrix, Retinia comstockiana 
Fern. A twig-borer causing considerable exudations of pitch. 
206 Bronze birch borer, Agrilus anxius Gory. Princi- 
pal food plant: white birch, specially injurious in parks. 
Treatment: Cut and burn badly infested trees. 
Chief accessible article: Chittenden, F. H. U.S. dep’t agriec. 
div. ent. Bul. 18, n. s. ’98. p. 44-51. 
207 Mapletree pruner, Elaphidion villosum Fabr. 
Principal food plants: maple, oak. 
Treatment: Gather and burn cut limbs in fall or early spring. 
Chief accessible articles: Lintner, J. A., state ent. 9th rep’t, ’92. 
p. 557-61; Felt, E. P. Fisheries, game and forest com. 4th rep’t, 
sep. 98. p. 28-29. 
208 Pine sawyer, Monohammus confusor Kirby, 
Attacks pines and spruces. 
209 Pine sawyer, Monohammus scutellatus Say. 
Attacks pines. 
210 Monohammus titillator Fabr. Attacks pines. 
211 Poplar borer, Saperda calcarata Say. A serious 
enemy of poplars in some localities. 
212 Painted hickory borer, Cyllene pictus Drury. At- 
tacks hickory. 
Chief accessible article: Lintner, J. A., state ent. 8th rept, 791. 
vp. 175-76. 
