238 NEW YORK STATE MUSEUM 



aa Antennae with 15 segments 



b Abdomen dark brown, scutellum fuscous yellowish; the fifth antennal 

 segment with a length one-half greater than its diameter, male. . . . 



v i r g i n i c a Felt,, C. 238b 

 aaa Antennae composed of 16 segments 



b Abdomen yellowish brown, scutellum fuscous yellowish; the fifth 

 antennal segment with a length about three-fourths its diameter, 



female fulva Felt, C. 461 



bb Abdomen light yellowish, scutellum pale orange; fifth antennal seg- 

 ment with a length one-third greater than its diameter, female .... 



flavescens Felt, C. ai583b 

 aaaa Antennae with 18 segments 



b Abdomen dark brown, scutellum a variable fuscous; the fifth antennal 

 segment with a length one-fourth greater than its diameter, male . . 



hamamelidis Felt, C. 238a 

 aaaaa 20 to 22 antennal segments 



b Abdomen dark brown, scutellum fuscous yellowish; the fifth antennal 

 segment of the male with a length one-fourth greater than its 

 diameter, that of the female with a length three-fourths its diameter . 



Reared from an oval, adherent gall between Solidago leaves 



adhesa Felt, C. ai568, ai583 



bb Abdomen dark brown, the basal and distal segments yellowish; the 



fifth antennal segment in both sexes with a length one-fourth 



greater than its diameter. Reared from marginal leaf roll on high 



blackberry rubifolia Felt, ai866, ?ai86Q. 



Camptoneuromyia virginica Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. no, p. 115; separate, p. 19 



(Dasyneura) _ 

 1908 N. Y. State Mus. Bui. 124, p. 334 



The species was taken on witch-hazel, Hamamelis Virgin- 

 ia n a , at Albany, N. Y., June 12, 1906. 



Male. Length .75 mm. Antennae dark brown. 15 segments, 

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

 terminal segment suboval. Palpi; the first segment short, stout, 

 irregular, the second narrowly oval, a little longer, the third as long 

 as the second, more slender, the fourth nearly twice the length of 

 the third, -more slender. Mesonbtum nearly uniform dark brown, 

 lighter posteriorly, submedian lines lighter, sparsely haired. 

 Scutellum variably fuscous basally, pale yellowish and with sparse 

 setae apically; post scutellum dark brown. Abdomen dark brown, 

 the sixth and seventh segments pale yellowish orange. Wings 

 (pi. 6, fig. 5) hyaline, costa black, the third vein uniting with costa 

 at the distal third. Halteres yellowish transparent. Legs light 

 brown, lighter ventrally, tarsi slightly darker; claws long, slender, 

 uniformly curved. Genitalia; basal clasp segment long, slender; 

 terminal clasp segment short, stout; dorsal plate broad, deeply and 

 triangularly emarginate. Harpes subtriangular, stout, irregularly 

 dentate. Type Cecid. 238b. 



