REPORT OF THE STATE ENTOMOLOGIST 1901 865 
265 Bag worm, Thyridopteryx ephemeraeformis 
Haw. Principal food plants: arbor vitae, red cedar. 
Treatment: Hand picking, spray with arsenical poisons. 
Chief accessible articles: Lintner, J. A., state ent. 1st rep’t, 
782. p. 81-87; Riley, ©. V. U.S. dep’t agric. div..ent. Bul. 10. 787. 
p. 22-28; Felt, E. P. Fisheries, game and forest com. 5th rep’t, 
"99. p. 359-63. 
266 Spiny elm caterpillar, Euvanessa antiopa Linn. 
Principal food plants: elm, willow, poplar. 
Treatment: Spray infested trees with arsenical poisons. 
Chief accessible articles: Weed, C. M. N. H. agric. exp. sta. 
Bul. *67. ?99. p. 125-41; Felt, E. P. Fisheries, game and forest 
com. 5th rep’t, 799. _ p. 368-71. 
267 Pteromalusfuscipes Prov. A parasite of 266. 
WORK OF GALL INSECTS (268-97) 
Galls of sawflies,s Tenthredinidae 
268 Willow apple gall, Pontania pomum Walsh 
4 winged gallflies, Cy ni pidae 
269 Mealy rose gall, RhoditesignotaO.S. 
270 Mossy rose gall, Rhodites rosae Linn. 
271 Large oak apple, Amphibolips confluentus 
rar. 
272 Black scrub oak apple. Amphibolips ilicifoliae 
Bass. 
273 Oak plum gall, Amphibolips prunus Walsh 
274 Gall of wool sower, Andricus seminator Harris 
) Oak leaf-stalk gall, Andricus petiolicola Bass. 
6 Oak-wool gall, Andricus lana Fitch | 
277 Woolly oak gall, Andricus operator O. S. 
278 Fuzzy chestnut leaf gall, ? Cynips prinoides 
Beutm. 
=I 
J) 
Lobed oak gall, Cynips strobilana O. S. 
Cynips decidua Bass. 
Oak fig gall, Biorhiza fortcornis Walsh 
Larger empty oak apple, Holcaspis inanis O.S. 
b> bo bb bo 
CO @ 
[= S) 
io8) 
i) 
