REPORT OF THE STATE ENTOMOLOGIST I917 181 



ddd Dorsal plate with the lateral angles produced, the lobes roundly 

 emarginate 

 e Basal portion of the stem of the fifth antcnnal segment 

 with a length one-fourth greater than its diameter 

 / The lobes of the dorsal plate broadly and roundly 



emarginate, the antennae plainly trinodose 



holotricha Felt, C. 1104a, iiioa, ai82ib 

 ee Basal portion of the stem of the fifth antennal segment 

 with a length twice its diameter 

 / Dorsal plate lobes short and roundly emarginate; 



antennae not trinodose 



c o r y 1 i f o 1 i a Felt, C. ai543b 



eee Fifth antennal segment having the basal portion of the 



stem with a length three times its diameter 



/ The lobes of the dorsal plate broadly, not deeply 



emarginate 



g Ventral plate deeply and triangularly emarginate, 



the lobes slender t e n u i t a s Felt, C. 306 



gg Ventral plate broadly and roundly emarginate, the 

 lobes stout 

 h Stems of the fifth antennal segment approxi- 

 mately equal, the lateral angles of the dorsal 

 plate produced. . .r o b u s t a Felt, C. 12 10 

 hh Stems of the fifth antennal segment unequal, 

 the lateral angles of the dorsal plate not 



produced .Carolina Felt, C. 976 



cc Ventral plate with the sides nearly parallel, apically broadly and 



slightly emarginate 



d Fifth antennal segment having the basal portion of the stem 



with a length three times its diameter, the dorsal plate short, 



with the lateral angles narrowly produced, the lobes roundly 



emarginate cyanococci Felt, C. 136 



dd Fifth antennal segment having the basal portion of the stem 

 with a length equal to its diameter, the dorsal plate short, 



the lateral angles broadly produced • 



contracta Felt, C. 671 

 ccc Ventral plate tapering distally, broadly and deeply emarginate 

 d Terminal clasp segment as long as the basal clasp segment 



e Fifth antennal segment having the basal portion of the 

 stem with a length four times its diameter, the dorsal 



plate truncate fibulata Felt, C. 684 



dd Terminal clasp segment distinctly shorter than the basal clasp 



segment 



e Fifth antennal segment having the basal portion of the stem 



with a length three to four times its diameter 



/ Abdomen fuscous yellowish, the ventral plate narrow, 



the distal enlargement of the fifth antennal 



segment with a length two and one-half times its 



diameter, stout and constricted at the basal third . . . 



cap ti va Felt, C. 197 



