REPORT OF THE STATE ENTOMOLOGIST I918 95 



Key to Species 



41 Antennae of the male distinctly binodose 



b Nodes separated by distinct stems, the circumfila moderately long 



c Basal stem of fifth antennal segment long, with a length considerably 

 more than its diameter 

 d Male; length 3 mm, abdomen deep reddish orange; dorsal plate 

 broad, narrowly emarginate, the lobes rounded; ventral 

 plate broad, roundly emarginate, the lobes broadly 

 rounded; terminal clasp segment long, hardly tapering. 

 Female; length 4 mm, abdomen dark reddish orange; 

 fifth antennal segment with a length three and one-half 

 times its diameter; ovipositor with the lobes protuberant; 

 wings long; larval breastbone unidentate. Reared from 

 a yellowish green or brown, subglobular,' thick-walled, 



hickory leaf gall 4 to 5 mm in diameter 



antennata Felt, C. ai944 

 dd Male; length 2.25 mm, abdomen deep reddish orange, the ventral 

 plate broadly subtruncate, the terminal clasp segment long, 

 tapering. Female; length 3 mm, the fifth antennal segment with 

 a length three times its diameter, the ovipositor with the lobes 

 protuberant, the wings long. Larval breastbone bidentate, 

 the teeth distant. Reared from a globose, thin-walled, yel- 

 lowish green or brown hickory leaf gall about 2 mm in diameter 

 c ary a e O. S., C. 1104, ai32r, ai9o6 

 <cc Basal stem of fifth antennal segment short, with a length only about 

 one-half its diameter 

 d Male; length 2.5 mm. Abdomen fuscous yellowish, the ventral 

 plate broad, broadly and triangularly emarginate. Female; 

 length 3.5 mm; abdomen dark red, the fifth antennal segment 

 with a length three and one-half times its diameter; ovipositor 

 with the lobes indistinct, the wings relatively long; larval 

 breastbone unidentate. Reared from a rust-red, hair}-, thin- 

 walled, hickory leaf gall 3 to 4 mm in diameter 



h o 1 o t r i c h a O. S., C. aigog 

 dd Male; length 2 mm; abdomen fuscous yellowish, the ventral plate 

 broadly and roundly emarginate. Female; length 3 mm; 

 abdomen a brownish orange, the fifth antennal segment with 

 a length three and one-half times its diameter; larval breast- 

 bone unidentate. Reared from a small, depressed, globvdar, 

 yellowish green or brownish, thin- walled hickory leaf gall, 

 some 2 mm in diameter consobrina Felt, C. ai948 



bb Nodes of the basal antennal segments separated only by a deep constric- 

 tion, the circumfila short and stout 

 c Male; length 3 mm; abdomen fuscous orange, the dorsal plate broadly 

 and triangularly emarginate, the ventral plate broadly truncate; 

 terminal clasp segment short, hardly tapering distally. Presum- 

 ably reared from a green, thin-walled, globose, hickory leaf gall . . . 



arcuaria Felt, C. 1 104X 



