348 JOURNAL OP ECONOMIC ENTOMOLOGY [Vol. 3 



a stem one fifth the length of the cylindric basal enlargement, Avhich 

 latter has a length 21^2 times its diameter. 



Rhopalomyia asteriflorcB Felt. 

 Axillary bud galls on Aster lateriflorus, diameter 10 mm. Male, 

 length 1.5 mm., fuscous yellowish; 18 antennal segments, the fifth 

 with a stem as long as the basal enlargement, which latter has a 

 length one half greater than its diameter. Female, length 3 mm., 

 reddish orange ; 20 antennal segments, the fifth with a stem one 

 fifth the length of the basal enlargement. 



Rhopalomyia lateriflori Felt. 



Blister galls ^^^Z" ^"^^'^ 



Gall yellowish white, nearly circular, 2 to 3 mm. in diameter; on 

 Aster macropJiyllns. Male, length 2 mm., abdomen dark brown, 

 the segments narrowly white banded; antennal segments 15, the 

 fifth with a length one quarter greater than its diameter, palpi 

 triarticulate. Female, length 1.5 mm., abdomen dark brown; 

 18 antennal segments, the fifth with a length slightly greater 

 than its diameter Lasioptera clarlxei Felt. 



Gall yellowish brown, narrowly oval, length 4 mm., diameter 2 

 mm. Female, length 1.75 mm., abdomen dark brown, the seg- 

 ments narrowly white margined; antennal segments 13, the fifth 

 with a length one third greater than its diameter, palpi uniar- 

 ticulate Asteromyia^ dumosce Felt. 



Gall brownish, yellow ringed, circular, diameter 3 mm. ]\Iale, length 

 2 mm., abdomen dark brown, the segments narrowly margined; 

 antennal segments 16, the fifth with a length three quarters its 

 diameter, palpi biarticulate. Female, length 2.25 mm. ; antennal 

 segments 18 Asteromyia waldorfi Felt. 



Gall yellowish, shining, oval, diameter 6 to 7 mm. Female, length 

 2 mm., abdomen dark brown, the segments narrowly white mar- 

 gined; antennal segments 22, the fifth with a length three 

 quarters its diameter, palpi biarticulate. .Asteromyia nitida Felt. 



Gall pinkish, large, oval blotches on Aster divaricata, diameter 10 

 to 12 mm. Male, length 2 mm., abdomen dark brown, the basal 

 segment sparsely white margined laterally and posteriorly; an- 

 tennal segments 16, the fifth with a length twice its diameter, 

 palpi uniarticulate. Female, leng-th 2 mm., abdomen dark brown, 

 the segments with submedian white spots; antennal segments 16. 



Asteromyia divaricata Felt. 



^Asteromyia u. g. This new genus is erected for certain American species 

 previously supposed to be referable to Baldratia Kieff. Type Lasioptera car- 

 1)0111 f era Felt. 



