264 



NEW YORK STATE MUSEUM 



Female. Length 2 mm. Antennae nearly as long as the body, 

 sparsely haired, fuscous yellowish; 19 segments, the fifth with a stem 



one-third the length of the 

 basai enlargement, which 

 latter has a length about 

 twice its diameter; termi- 

 nal segment produced, nar- 

 rowly oval. Palpi; one 

 subfusiform segment hav- 

 ing a length about three 

 times its diameter; face 

 fuscous. Mesonotum dark 

 brown, the submedian lines 

 sparsely haired. Scutellum 

 reddish brown, postscutel- 

 lum dark brown. Abdo- 



^. ^ ^ , , . 1 ^ . men a dark reddish brown. 



Fig 76 Rhopalomyiapalustris; ^^^ ^^^^ ^^^ ^.^^^ 



fifth antennal segment of male, enlarged , i. j. i- i.^. 



, . . ,, ^ ments somewhat lighter, 



(ongmal) ■ •, 1 



^ ^ ovipositor pale orange. 



Wings hyaline, costa dark brown. Halteres yellowish basally, 



fuscous apically. Legs a nearly uniform fuscous yellowish; claws 



long, slender, slightly curved, the pulvilli longer than the claws. 



Ovipositor about two-thirds the length of the abdomen, the terminal 



lobes long, slender, irregularly rounded. Type Cecid. 1208. 



1908 Felt, E. P. 



1909 



Rhopalomyia lobata Felt 



N. Y. State Mus. Bui. 124, p. 366 

 Ottawa Nat., 22: 249 



This species was reared July 17, 1907 from a subglobular gall 

 occurring near the top of a slender stem of Solidago gram- 

 jnifolia taken at West Nyack, N. Y. 



Gall. The gall is subglobular, inclosed in several whorls of dis- 

 torted leaflets or bracts and about 1.5 cm in diameter. The interior 

 is composed of spongy material inhabited by several larvae. 



Female. Length 3.5 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, Hght fuscous yellowish; 19 

 segments, the fifth subsessile, with a length fully twice its diameter; 

 terminal segment greatly produced, tapering, narrowly rounded. 

 Palpi; one stout, narrowly oval segment tapering irregularly; face 

 fuscous yellow. Mesonotum reddish brown, the submedian lines 

 rather thickly clothed with fuscous hairs. Scutellum dark reddish 

 brown, postscutellum dark carmine. Abdomen rather thickly 

 clothed with fine hairs, dark brown, the incisures and pleurae dark 

 carmine. Wings hyaline, costa dark browai; halteres yellowish 

 basally, fuscous apically. Coxae and base of femora pale reddish 

 orange, the remainder of the legs a very dark brown, the tarsi nearly 

 black; claws long, stout, strongly curved, the puhdlli longer than the 



