REPORT OF THE STATE ENTOMOLOGIST I918 IT3 



claws. Ovipositor short, the terminal lobes somewhat protuberant' 

 tapering, broadly rounded. Type Cecid. aipso. 



Caryomyia persicoides Beutm. 



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

 1892 Beutenmueller, William. Am. Mus. Nat. Hist. Bui., 4:267 

 (Cecidomyia) 

 1904 Am. Mus. Nat. Hist. Guide Leaflet 16, p. 28 (Cecidomyia) 



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

 Mus. Mem. 8, 2:619, 628, pi. i, fig. 9 (Cecidomyia) 



1907 Beutenmueller, William. New Species of Gall Producing Cecido- 

 myiidae, Amer. Mus. of Nat. Hist. Bui., 23:393 (Cecidomyia) 



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



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

 (Cecidomyia) 



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

 1918 Felt, E. P. N. Y. State Mus. Bui. 200, p. 46 



The gall only of this insect was briefly characterized by Osten 

 Sacken in 1862. Other writers have been content to rest their 

 identifications upon this brief characterization till Professor Beu- 

 tenmueller described the larva in 1907. This gall insect appears to 

 be widely distributed. It occurs rather commonly in the vicinity 

 of New York City, about Albany and has been recorded by Jarvis 

 from Ontario. 



GalL This is a rather large, irregular, monothalamous, hairy gall 

 frequently 6 or 7 mm in diameter and usually clustered along the 

 midrib. It may be distinguished from C. holotricha by the 

 larger size, the shorter, curly hairs and the thicker walls. It turns 

 to a variable brown or reddish brown in the fall. 



Larva. Length 2 to 3 mm, stout, whitish. Breastbone rather 

 stout, unidentate, the tooth rather long, narrow, the shaft somewhat 

 expanded anteriorly and posteriorly. This breastbone differs some- 

 what from that described by Beutenmueller though it is very probable 

 that the two are specifically identical. 



ExuviuM. Length 2.75 mm, whitish transparent. Antennal cases 

 short, extending to the second abdominal segment, slightly chitinized 

 at the internal basal angles. Cephalic horns rather slender, short. 

 Wing and leg cases extending to the third abdominal segment, the 

 latter thickly margined with a band composed of four or five irregular 

 rows of stout spines, the posterior spines markedly longer, the 

 remainder of the dorsal surface rather thickly dotted with chitinous 

 points. 



Female. Length 3 mm. Antennae extending to the second 

 abdominal segment, sparsely haired, reddish; fourteen sessile seg- 

 ments, the fifth with a length three and one-half times its diameter; 

 circumfila near the basal third and apically. Palpi; first segment 

 short, irregularly quadrate, the second short, very broadly oval, 

 the third a little longer, rectangular, the fourth twice the length of 



