REPORT OF THE STATE ENTOMOLOGIST 1901 865 



265 Bag worm, Thyridopteryx ephemera eformis 

 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, 

 '82. p. 81-87; Riley, C. V. U. S. dep't agric. div. ent. Bui. 10. '87. 

 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. 

 Bui. '67. '99. p. 125-41; Felt, E. P. Fisheries, game and forest 

 com. 5th rep't, '99. p. 368-71. 



267 Pteromalus fuscipes Prov. A parasite of 266. 



WORK OF GALL INSECTS (268-97) 



Galls of sawflies, Tenthredinidae 



268 Willow apple gall, Pontania pomum Walsh 



4 winged gallflies, Cy n i pidae 



269 Mealy rose gall, Khodites ignota 0. S. 



270 Mossy rose gall, Khodites rosae Linn. 



271 Large oak apple, AmphiboHps confluentus 



Harr. 



272 Black scrub oak apple, Amphibolips ilicifoliae 



Bass. 



273 Oak plum gall, Amphibolips prunus Walsh 



274 Gall of wool sower, Andricus seminator Harris 



275 Oak leaf-stalk gall, Andricus petiolicola Bass. 



276 Oak- wool gall, Andricus lana Fitch 



277 Woolly oak gall, Andricus operator O. S. 



278 Fuzzy chestnut leaf gall, ?Cynips prinoides 



Beutm. 



279 Lobed oak gall, Cynips strobilana O. S. 



280 Cynips decidua Bass. 



281 Oak fig gall, Biorhiza fortcornis Walsh 



282 Larger empty oak apple, Holcaspis inanis O. S. 



