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 segmenr 

 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, 

 hickory leaf gall some 2 mm long 



s a n g u i n o 1 e n t a O. S., C. ai945 



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; lar\^al breastbone slender, bidentate. Reared 

 from a rust-red, long-haired, globular, hickory leaf gall 2 to 



3 mm in diameter ...thompsoni Felt, C. 1 1 i6a, C. aigoS 

 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. Reared from a 

 greenish or black tubular, hickory leaf gall 2 to 3 mm long, . . 

 t u b i c o 1 a O. S., C. ai450, C. 1 106, 31320 

 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 s im i 1 i s Felt, C. 31946 



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 



