REPORT OF THE STATE ENTOMOLOGIST I918 



115 



Larva. Length 2,5 mm, rather stout, pale orange. Head small; 

 antennae short, stout, probably biarticulate; breastbone rather 

 slender, unidentate, the tooth being long and narrowly triangular; 

 segmentation rather distinct, the skin very finely shagreened; 

 posterior extremity broadly rounded, the dorsal surface rather 

 coarsely papillate. 



Caryomyia cynipsea O^ S. 



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

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

 Mus. Mem. 8, 2:718 (Cecidomyia) 



191 8 N. Y. State Mus. Bui. 200, p. 47 



This species, according to Osten Sacken, makes a rounded, 

 irregular, pale yellowish, hard swelling about one-half of an inch 

 long on the underside of the midrib of the hickory leaf. The larvae 

 observed by him in July were in small cavities, minute, whitish 

 with the breastbone narrowing anteriorly to a point. 



Caryomyia glutinosa O. S. 

 1862 Osten Sacken, C. R. Mon. Dipt. N. A., 1:193-94 (Cecidomyia) 

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

 Mus. Mem. 8, 2:718 (Cecidomyia) 



1918 N. Y. State Mus. Bui. 200, p. 47 



This small, yellowish orange larva is widely distributed though 

 somewhat rare. It is provisionally referred to the above-named 

 genus, since it appears to be a typical hickory insect and is presumably 



Fig. 16 Caryomyia glutinosa; a, head of larva; b, breastbone of larva 



(enlarged, original) 



more closely allied to the varied forms making the diverse gall than 

 to other species. This unique larva is remarkable in that it forms no 

 gall but lives on the tmderside of the leaf, attached thereto by a 

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