402 NEW YORK STATE MUSEUM 



// Abdomen light brown, the ventral plate broad, the 5th antennal 

 segment having the distal enlargement with a length ^ greater 



than its diameter and constricted at the basal third 



a e s t i V a n. sp., C. 389 

 /// Abdomen light brown, the ventral plate narrow, the 5th an- 

 tennal segment having the distal enlargement with a length 

 j/2 greater than its diameter and not constricted at the basal 



third obscura n. sp., C. 204 



ce Fifth antennal segment having the basal portion of the stem with 

 a length 2^2 times its diameter, the distal enlargement with a 

 length |4 greater than its diameter, the lobes of the dorsal plate 



obliquely truncate ; abdomen fuscous yellowish 



variabilis n. sp., C. 652 



eee Fifth antennal segment having the basal portion of the stem with 



a length ^ greater than its diameter, the distal enlargement with 



a length % greater than its diameter, the lobes of the dorsal 



plate truncate ; abdomen fuscous brown 



modesta n. sp., C 289 



cccc Ventral plate broadly rounded apically, the 5th antennal segment 



having the basal portion of the stem with a length 2^ times its 



diameter, the abdomen fuscous yellowish. .. .t s u g a e Felt, C. i68a 



bb Ventral plate rather short, about >2 the length of the style or of the 



basal clasp segment if the style is short 



c Ventral plate deeply emarginate 



d Fifth antennal segment having the basal portion of the stem with a 

 length 2^ times its diameter, the abdomen yellowish orange.... 



emarginata Felt, C. 191, 438, 695 

 cc Ventral plate broad, broadly and slightly emarginate 



d Fifth antennal segment having the basal portion of the stem with 

 a length twice its diameter 

 e The dorsal plate narrowly incised, the abdomen a mottled brown 



alter nata Felt, C. 209, 205, 220 

 ee Dorsal plate triangularly incised, the abdomen a reddish car- 

 mine hudsoni Felt, C. 188 



dd Fifth antennal segment having the basal portion of the stem with 

 a length ^ greater than its diameter 

 e Abdomen pale orange, the distal enlargement of the 5th antennal 



segment with a length ]4 greater than its diameter 



c o r y 1 i Felt, C. 237 

 cc Abdomen bright orange, the distal enlargement of the fifth 



antennal segment with a length twice its diameter 



perplexa n. sp., C. 554 

 ccc Ventral plate broadly truncate 



d Dorsal plate narrowly incised, the lobes rather broad ; abdomen 



brownish orange a u r a t a n. sp., C. 212 



dd Dorsal plate narrowly incised, the lobes narrow and narrowly 

 rounded ; abdomen dark brown s i 1 v a n a n. sp., C. 255 



