REPORT OF THE STATE ENTOMOLOGIST I918 II7 



Larva. Length 3 mm, stout, yellowish. Head (figs. i6a, 17) 

 moderate size, roundly triangular, the antennae rather stout, biarticu- 

 late. Breastbone (fig. 166) greatly reduced, there being only a 

 narrowly triangular, chitinous process apically. Body with the skin 

 smooth, the segmentation rather distinct, each segment bearing an 

 irregular, transverse row of rather stout, chitinous spines, the latter 

 having a length nearly equal to that of the segment and laterally 

 arranged in pairs. Posterior extremity (fig. 18) irregularly rounded, 

 the posterio lateral angles each with groups of four short, stout, 

 transparent spines. Cecid. aiS47. 



Caryomyia nucicola O. S. 



1870 Osten Sacken, C. R. Am. Ent. Soc. Trans., 3:53 (Cecidomyia caryae 

 nucicola) 



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

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



1907 Jarvis, T. D. Ent. Soc. Ont., 37tli Rep't, p. 68 (Cecidomyia) 



igog Ent. Soc. Ont., 39th Rep't, p. 84 (Cecidomyia) 



1918 Felt, E. P. N. Y. State Mus. Bui. 200, p. 49 



This species infests the green husks of the nuts of shell-bark 

 hickory, Carya ovata, producing swellings and giving them an 

 irregular appearance. The husk is so badly deformed occasionally 

 as to burst open, leaving the nut uncovered even when very immature, 

 portions of the husk forming wartlike swellings on the basal portion 

 of the nut. This gall was taken by Baron Osten Sacken August 

 9, i860 near Rhinebeck, N. Y. On examination the husks were found 

 to contain small, roimd cavities, often two or three together, each 

 inhabited by pale reddish larva. The latter has a breastbone 

 " distinctly elongated, narrow, its branches short and square, ending 

 in sharp angles anteriorly, instead of being rounded; the emargina- 

 tion between them broad and deep." The posterior extremity of 

 the body is smooth. This species has been recorded from Ontario, 

 Canada, by Jarvis. 



Caryomyia sp. 



A nimiber of irregular, dull greenish black margined or black 

 blister galls (pi. 9) with a diameter about 3 mm, distinctly elevated 

 on both the upper and under surface of the leaves and with a smaU 

 nipple were variably scattered about the midrib and in some cases 

 several were confluent. These specimens were taken at Nassau, 

 N. Y., October 3, 1907. No adults were reared and the above 

 generic reference is tentative. 



