268 



NEW YORK STATE MUSEUM 



Female. Length 2 mm. Antennae probably nearly as long as 

 the body, sparsely haired, fuscous yellowish; 17 segments, the fifth 

 with a stem one-fourth the length of the basal enlargement, which 

 latter has a length nearly twice its diameter; terminal segment pro- 

 duced, narrowly oval. Mesonotum dark brown, the submedian 

 lines sparsely clothed with fine hairs. Scutellum yellowish trans- 

 parent, postscutellum brown. Abdomen a variable fuscous yellowish, 

 darker at the extremities. Wings hyaline, costa light brown. Ovi- 

 positor stout, nearly as long as the abdomen, the terminal lobes 

 short, stout, tapering, narrowly rounded. Type Cecid. 12 15. ' 



Rhopalomyia cruziana Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 366, 367 



1909 • Ottawa Nat., 22: 246 



The galls of this species occur on the flowers of Solidago and were 

 collected in the Santa Cruz mountains, California, during August, 

 1889, the adults issuing before May 1890. 



Male. Length 1.5 mm. Antennae nearly as long as the body, 

 sparsely haired, light brown; 17 segments, the fifth with a stem as 

 long as the basal enlargement, which latter has a length one-half 

 greater than its diameter; terminal segment greatly produced, 

 tapering, narrowly rounded. Palpi; the first segment ver}^ broad, 

 irregularly subglobular, the second slender, with a length about 

 twice its diameter, obtusely rounded. Mesonotum shining brown, 

 the submedian lines indistinct. Scutellum yellowish brown, post- 

 scutellum a little lighter. Abdomen sparsely clothed with fine hairs, 

 light brown. Wings hyaline, costa light brown. Halteres pale 

 yellowish, yellowish white distally. Legs a variable yellowish straw, 

 the distal tarsal segments' light brownish; claws long, slender, 

 evenly curved, the pulvilli longer than the claws. Genitalia; basal 

 clasp segment long, stout; terminal clasp segment short, stout; dorsal || 

 plate long, broad, deeply and triangularly emarginate; ventral plate ■ 

 long, broad, broadly emarginate. Harpes long, convolute, irregularly ■ 

 rounded. 



Female. Length 2.25 mm. Antennae extending to the third 

 abdominal segment, sparsely haired, light yellowish brown; 15 seg- 



Fig. 82 Rhopalomyia cruziana; fifth antennal segment, palpus and 

 claw of female, enlarged (original) 



