l82 NEW YORK STATE MUSEUM 



// Abdomen light brown, the ventral plate broad, the 

 fifth antennal segment having the distal enlargement 

 with a length one-half greater than its diameter and 



constricted at the basal third 



a e s t i V a Felt, C. 389 



/// Abdomen light brown, the ventral plate narrow, the 



fifth antennal segment having the distal enlargement 



with a length one-half greater than its diameter and 



not constricted at the basal third 



o b s c u r a Felt, C. 204 



ee Fifth antennal segment having the basal portion of the 



stem with a length two and one-half times its diameter, 



the distal enlargement with a length three-fourths greater 



than its diameter, the lobes of the dorsal plate obliquely 



truncate; abdomen fuscous yellowish 



variabilis Felt, C. 652 



eee Fifth antennal segment having the basal portion of the stem 



with a length one-half greater than its diameter, the distal 



enlargement with a length one-fourth greater than its 



diameter; the lobes of the dorsal plate truncate; abdomen 



fuscous brown modesta Felt, C. 289 



cccc Ventral plate broadly rounded apically 



d Stems of the fifth antennal segment unequal, the basal portion 

 with a length two and one-half times its diameter, the lateral 

 angles of the dorsal plate produced . . t s u g a e Felt, C. i68a 

 dd Stems of the fifth antennal segm.ent nearly equal, each with a 

 length about one-half greater than its diameter, the dorsal 

 plate without produced lateral angles. Reared from red 



spider on cotton macgregori Felt, C. a26oi 



hh Ventral plate rather short, about one-half the length of the style or of the 

 basal clasp segment, if the style is short 

 c Ventral plate broad, broadly and slightly emarginate 



d Fifth antennal segment having the basal portion of the stem 

 with a length three times its diameter. Reared from a 



yellowish fungus on rotten bark 



fungiperda Felt, C. 1315 

 dd Fifth antennal segment having the basal portion of the stem 

 with a length twice its diameter 

 e Dorsal plate narrowly incised, the abdomen a mottled brown 



alternata Felt, C. 209 

 ee Dorsal plate triangularly incised, the abdomen a reddish 



carmine h u d s o n i Felt, C. 188 



ddd Fifth antennal segment having the basal portion of the stem 

 with a length one-half greater than its diameter 

 e Abdomen pale orange, the distal enlargement of the fifth 

 antennal segment with a length one-fourth greater than 



its diameter c o r y 1 i Felt, C. 237 



ee Abdomen bright orange, the distal enlargement of the fifth 



antennal segment with a length twice its diameter 



perplexa Felt, C. 554 



