96 NEW YORK STATE MUSEUM 
aa Male; antennal segments cylindric, sessile, the circumfila short and stout 
b Wings short or rather short 
c Male; length 2 mm; abdomen dark red, the fifth antennal segment 
with a length three and one-half times its diameter, the dorsal 
plate broadly and narrowly emarginate, the lobes irregularly and 
broadly rounded, the ventral plate long, broad and broadly 
rounded. Female; length 1.75 mm; abdomen yellowish orange, 
the fifth antennal segment with a length two and one-half times 
its diameter, the lobes slightly produced, acute; larval breastbone 
unidentate. Reared from a small, green or red-tinted, conic, 
inickory ‘leat gallsome) 2 mimMlong... 25a ecs specicce ae acre eee 
sanguinolenta O.S., C. a1945 
bb Wings short, broad 
c Ventral plate broadly rounded 
d Male; length 1.75 mm; abdomen dark red, the dorsal plate 
triangularly emarginate, the lobes angular. Female; length 
2 to 3 mm; abdomen dark red, the fifth antennal segment 
with a length two and one-half times its diameter, the lobes 
protuberant; larval breastbone slender, bidentate. Reared 
from a rust-red, long-haired, globular, hickory leaf gall 2 to 
3 mm in diameter...thompsoni Felt, C. 1116a, C. a1g08 
cc Ventral plate emarginate 
d Male; length 1.75 mm; abdomen dark red, the fifth antennal 
segment with a length three and one-half times its diameter. 
Female; length 1.5 mm; abdomen reddish orange, the fifth 
antennal segment with a length two and one-half to three 
times its diameter; ovipositor with the lobes short, slightly 
protuberant; larval breastbone unidentate. eared from a 
greenish or black tubular, hickory leaf gall 2 to 3 mm long... 
tubicola O.S., C. a1450, C. 1106, a1320 
dd Male; length 1.75 mm; abdomen reddish orange, the fifth 
antennal segment with a length twice its diameter. Female; 
length 2.75 mm; abdomen dark reddish orange, the fifth 
antennal segment with a length three and one-half times its 
diameter; ovipositor with the lobes protuberant; larval 
breastbone unidentate. Reared from a thin-walled, sub- 
globular, slightly nippled, hickory leaf gall 2 to 3 mm in 
diameter!) ii) aes, eet eis similis Felt, C. a1g46 
Table of Larvae and Galls 
This table is designed to assist in the identification of the species 
by characters found in the galls and larvae. It should be considered 
as tentative and suggestive rather than as final, owing to the varia- 
tions in the galls and the difficulty of finding satisfactory specific 
characters in the larvae. It is probable that other species of Cary- 
omyia, aside from those tabulated below, will be found to inhabit 
the hickory. Certain species are tentatively assigned to this genus 
