112 NEW YORK STATE MUSEUM 



Rhabdophaga strobiloides Walsh 



1862 Osteii Sacken, C. R. Mon. Dipt. N. A., 1 1203 (Cecidomyia) 

 1864 Walsh, B. D. Ent. Soc. Phila. Proc, 3:580-82 (Cecidomyia) 



1867 Ent. Soc. Phila. Proc, 6 1269 (Apion lanuginosum 



( w a 1 s h i i ) reared, Cecidomyia) 

 1869 Riley, C. V. & Walsh, B. D. Am. Ent., 1:105 (Cecidomyia) 



1869 Packard, A. S. Guide to the Study of Insects, p. yil (Cecidomyia) 



1870 Walsh, B. D. Am. Ent, 2 :209 (Eurytoma studiosa Say 

 reared, Cecidomyia) 



1874 Glover, Townend. MS. Notes from My Journal, pi. II, fig. 15 

 (Cecidomyia) 



1884 Smith, J. B. Am. Ent. Soc. Trans., 11:57-58 (Apion walshii 

 Smith reared, Cecidomyia) 



1890 Riley, C. V. & Howard, L. O. Ins. Life, 2:353 (Ch el onus 

 parvus Say reared, Cecidomyia) 



1892 Beutenmueller, William. Am. Mus. Nat. Hist. Bui. 4. p. 267-68 

 (Cecidomyia) 



1894 Comstock, J. H. Man. for the Study of Insects, p. 455 (Fig.) 



1896 Marlatt, C. L. U. S. Dep't Agric. Div. Ent., Tech. Ser. 3, p. 22 

 (Nematus pomum reared, Cecidomyia) 



1000 Smith, J. B. List Ins. N. J., p. 620 (Cecidomyia) 



1904 Beutenmueller, William. Am. Mus. Nat. Hist. Guide Leaflet 16, 

 p. 28 (Cecidomyia) 



1904 Cook, M. T. Dep't Geol. Nat. Res. Ind. 29 Rep't, p. 840 (Cecidomyia) 



1906 Felt, E. P. Ins. Affect. Prk. & Wdld. Trees, N. Y. State Mus. 

 Mem. 8, 2:639, 746 



1907 Jarvis, T. D. Ent. Soc. Ont. 37th Rep't, p. 66 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 355, 356 



1909 Ent. Soc. Ont. Rep't, p. 92 (Cecidomyia) 



1009 Brodie, William. Can. Ent., 41 :249-5i 



1910 Cook, M. T. Mich. Geol. & Biol. Surv. Pub. 1, Biol. Ser. 1, p. 31 

 (Cecidomyia) 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist. Bui. 2, p. 11 

 1912 Cosens, A. Canad. Inst. Trans., 9:325 



This gall is a somewhat common one in New York State and 

 New England. The dark brown adults pass the winter as larvae 

 in the gall, appearing in early spring. Polygnotus species was 

 reared from this gall. 



Gall. This is a loose, cabbagelike apical deformity some 2 to 

 2.y 2 cm in diameter and about 3 to 4 cm long. The bracts give 

 shelter to the larvae of several inquilines. 



Male. Length 4 mm. Antennae about two-thirds the length of 

 the body, dark brown; 23 segments, the fifth with a stem about 

 three-quarters the length of the basal enlargement; terminal seg- 

 ment somewhat prolonged. Palpi ; first segment irregularly sub- 

 quadrate, slightly swollen distally, the second longer, a little stouter, 

 the third a little shorter and more slender than the second, the 

 fourth about one-third longer than the third, more slender; face 



