252 



NEW YORK STATE MUSEUM 



length of the preceding. Mesonotum dark brown, the submedian 

 lines inconspicuous. Scutellum reddish brown, postscutellum fuscous 



Fig. 64 Rhopalomyia anthophila; fifth antennal segment of male, 



enlarged (original) 



yellowish. Abdomen thickly clothed with fine hairs, dark brown, 

 the distal segments, genitalia and venter fuscous yellowish. Wings 

 hyaUne, costa light straw. Halteres yellowish basally, light fuscous 

 apically. Legs a variable light 

 straw, the distal tarsal segments 

 somewhat lighter; claws long, slen- 

 der, evenly curved, the pul villi one- 

 fourth longer than the claws. Geni- 

 talia; basal clasp segment long, 

 stout; terminal clasp segment short, 

 stout, swollen near the basal third; 

 dorsal plate short, stout, deeply and 

 triangularly incised; ventral plate 

 long, broad, broadly emarginate. Harpes broad, convolute, nar- 

 rowly rounded, with two or three inconspicuous chitinous processes. 

 Female. Length 3 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, pale yellowish or yellowish 

 brown; 19 segments, the fifth with a length two and one-half times 

 its diameter, tapering; terminal segment produced, tapering, narrowly 



Fig. 65 Rhopalomyia 

 thophila; male palpus, 

 larged (original) 



