84 NEW YORK STATE MUSEUM 



/// Fifteenth antennal segment extended, with a length 

 fully five times its diameter; third and fourth pal- 

 pal segments equal; ovipositor lobe with a length 

 four times its diameter. Reared from small, 



clustered, rosette bud galls on willow 



r a c e m i Felt, C. 1245 

 dd 17 antennal segments 



e Wings broad; fifth antennal segment with a length one- 

 half greater than its diameter; fourth palpal segment 

 with a length twice that of the third; ovipositor lobe 



with a length two and one-half times its diameter 



marginata Felt, C. 81 

 ee Wings narrow; fifth antennal segment with a length 

 twice its diameter ; the fourth palpal segment one- 

 quarter longer than the third ; ovipositor lobe with a 

 length three times its width. Reared from irregular 



twig gall on willow salicis Schrank, ai356 



bb Males; antennal segments stemmed 



c Stem of fifth antennal segment with a length one-quarter that 



of the basal enlargement. Reared from rose 



rosacea Felt, C. 1244 

 cc Stem of fifth antennal segments with a length one-half that 

 of the basal enlargement 

 d Antennae slender, the basal enlargement of the fifth seg- 

 ment with a length twice its diameter; the palpi slender, 

 the fourth one-quarter longer than the third ; harpes with 

 a long chitinous process apically. Reared from willow 



twig ramuscula Felt, ai449a 



dd Antennae stout, the basal enlargement of the fifth segment 

 with a length one-half greater than its diameter; the third 

 and fourth palpal segments equal; harpes without long 

 chitinous processes apically. Reared from a nodular gall 

 at the base of willow twig, .n d u 1 a Walsh, ai4i2, C. 779 

 ccc Stem of fifth antennal segment with a length three-quarters that 

 of the basal enlargement 

 d Antennae nearly as long as the body 



e The basal enlargement of the fifth antennal segment 

 with a length twice that of its diameter 

 / Wings broad with a length only about one-half 

 greater than the width 

 • g 17 antennal segments, the fourth palpal seg- 



ment one-half longer than the third. Reared 



from apparently normal willow buds 



latebrosa Felt, C. aiQsS 

 // Wings slender, with a length about two and one- 

 half times their width 

 g Claws strongly curved, the basal tooth long 

 h 17 antennal segments, the basal enlargement 

 of the fifth with a length two and one- 

 half times its diameter; the fourth palpal 



