REPORT OF THE STATE ENTOMOLOGIST I915 55 



Bibliography 



1870 Perris, E. Ann. Soc. Ent. Fr., 10:177 x 



1876 Von Bergenstamm, J. E. & Low, P. Synop. Cecidomyidarum, p. 90, 



no. 516 (without name) 



1885 Low, Franz. Verh. Zool.-bot. Ges. Wien., 35:488-89 (Cecidomyia) 



1892 Rubsaamen, E. H. Berl. Ent. Zeitschr., 37:375 (Rhopalomyia) 



1897 Kieffer, J. J. Syn. Cecid. Eur. & Alg., p. 21 (Rhopalomyia) 



1897 Soc. Ent. Fr. Bui., p. 261 (Rhopalomyia) 



1900 Baldrati, J. Nuovo Giorn. bot. ital Firenze, 32 40, no. 86, pi. 3 l 



1902 Kertesz, C. Cat. Dipt., 2:69 (Rhopalomyia) 



1902 Lemee, E. Alengon Bui. Soc. horticult., separate, p. 38, no. 131 * 



1909 Houard, C. Les Zoocecidies des Plantes d. 'Eur., etc., 2: 988-90; 3: 



1483 (Rhopalomyia) 



191 1 Kuster, Ernst. Die Gallen der Pnanzen, p. 77, 274 (Rhopalomyia) 



19 1 3 Kieffer, J. J. Gen. Insect, fascicle 152, p. 46 (Misospatha) 



1915 Felt, E. P. Amer. Florist, 44:612 (Rhopalomyia) 



19 1 5 Econ. Ent. Jour., 8:267 (Rhopalomyia) 



I 9 I 5 Tree Talk, v. 2, no. 4, p. 27 (Rhopalomyia) 



WHITE GRUBS 



The white grub outbreak of last season, predicted the preceding 

 fall, was very serious in southern Rensselaer and northern Columbia 

 counties in particular, though the damage was mitigated to a con- 

 siderable extent by an unusually copious and well-distributed 

 rainfall during the summer months. Grasslands, including both 

 old pasture and recently seeded ground, were badly infested though 

 the damage was more restricted and " spotty " than in 19 12, probably 

 due in part to the activity of natural enemies and partly to the 

 unusually vigorous growth of grass at the time the grubs were feed- 

 ing most actively. 



There was also in this connection serious injury to susceptible 

 crops planted on land badly infested by young grubs. In some 

 instances this was so severe as to result in the practical loss of 30 

 to 75 per cent of the potato crop (see plate 12). Fodder corn, and 

 especially field corn, was also seriously damaged. 



Collections of adults in various sections of the State in 19 14 clearly 

 show that Lachnosterna fusca Froh. is by far the most 

 abundant and injurious species in the upper Hudson valley, though 

 L. fraterna Harr. was somewhat numerous. The most destruc- 

 tive species on Long Island, as evidenced by these collections, were 

 L. hirticula Knoch. and L. t r i s t i s Fabr. These beetles 

 resemble each other so closely that there is little probability of most 



1 Not available for reference. 



