REPORT OF THE STATE ENTOMOLOGIST 1918 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 ©. 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) 
1918 N. Y. State Mus. Bul. 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. 5S. 
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. Bul. 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 

en eee 
a 6 
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 underside of the leaf, attached thereto by a 
8 
