REPORT OF THE STATE ENTOMOLOGIST IQlS lOI 



Palpi; first segment with a length three times its diameter, incrassate, 

 the second narrowly oval, the third and fourth as long as the first, 

 the fourth somewhat dilated. Mesonotum yellowish brown, the sub- 

 median lines sparsely haired. Scu^tellum fuscous yellowish, post- 

 scutellum reddish. Abdomen dark reddish orange, the terminal 

 segment and ovipositor fuscous yellowish, the lobes slightly pro- 

 tuberant, narrowly rounded. Type Cecid. ai944. 



Caryomyia holotricha O. S. 



1862 Osten Sacken, C. R. Mon. Dipt. N. A., 1:193 (Cecidomyia) 



1874 Glover, Townend. Ms. Notes My Jour. Dipt., pi. 11, fig. 23 

 (Cecidomyia) 



1892 Beutemnueller, William. Am. Mus. Nat. Hist. Bui., 4:266 

 (Cecidomyia) 



1904 Am. Mus. Nat. Hist. Guide Leaflet 16, p. 26-27 



(Cecidomyia) 



1904 Cook, M. T. Ohio State Univ. Bui., set. 8, 13:140-41 (Cecidomyia) 



1905 Dep't Zool. & Nat. Res. Ind. 29th Rep't, p. 840 



(Cecidomyia) 



1906 Felt, E. P. Insects Affecting Park & Woodland Trees, N. Y. State 

 Mus. Mem. 8, 2:619, 628, pi. i, fig. 4 (Cecidomyia) 



1907 ■ — N. Y. State Mus. Bui. no, p. 143, separate, p. 47 



(Dirhiza caryae) 



1908 N. Y. State Mus. Bui. 124, p. 389 (Hormomyia) 



1909 ■ Ent. Soc. Ont., 39th Rep't, p. 45 (Hormomyia) 



1909 Econ. Ent. Jour., 2:293 



1909 Jaivis, T. D. Ent. Soc. Ont., 39tli Rep't, p. 84 (Cecidomyia) 



1910 Stebbins, F. A. Springfield Mus, Nat. Hist. Bui. 2, p. 13 

 (Hormomyia) 



1918 Felt, E. P. N. Y. State Mus. Bui. 200, p. 47 



This small, globular, fuzzy, rust-red, hickory leaf gall is one of 

 the most common occurring in New York State, sometimes being so 

 abundant as to cover nearly the entire under surface of the leaf. 

 This species is evidently widely distributed, since it was observed 

 by the writer at Asheville, N. C, has been taken in numbers about 

 New York City, listed from Ontario, Canada, by Jarvis and is 

 recorded as being very abundant in Indiana by Cook. The galls, 

 are usually on the under surface of the leaf. They are first yellowish, 

 becoming reddish brown in auttmin. The insects winter in the gall, 

 the flies appearing in early spring. Leptacis floridanus 

 Ashm. was reared from this gall. 



Gall. Diameter 2 to 4 mm, globular or subglobular (pi. 6, fig. 4), 

 thickly clothed with rather long yellowish or rust-red hairs, mono- 

 thalamous, the walls rather thin. 



Larva. Length 3 mm, stout, whitish, the head small; antennae 

 long, bidentate; breastbone narrow, unidentate, the tooth long 



