REPORT OF THE STATE ENTOINIOLOGIST I914 263 



Male. Length 2 inm. Antennae nearly as long as the body, 

 sparsely haired, light fuscous yellowish; the terminal and basal seg- 

 ments yellowish; 19 segments, the fifth with a stem one-third the 

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

 greater than its diameter; the two terminal segments rather closely 

 fused, the distal one narrowly rounded. \ 



Palp; one rather long, slender, acute seg- W^>v7~-.w. 



ment; face fuscous yellowish. Mesonotum (3^'- — ^^^"^*^^'^^ 



dark fuscous yellowish, the submedian lines ^_^^_.,----^'\^^^^!!^^^^ 

 lighter, sparsely haired. Scutellum light X^^^'^ / 



fuscous yellowish with coarse setae apically, x I 



postscutellum darker. Abdomen rather ' 



thickly clothed with fuscous hairs, fuscous ' 



yellowish, the basal segments and genitalia Fig. 75 Rhopalom- 

 somewhat darker. Wings hyaline, costa yia pediceUata; 

 dark brown. Halteres yellowish basally, male palpus, enlarged 

 fuscous apically. Coxae, femora and tibiae (original) 

 mostly fuscous yellowish, tarsi a little darker; claws long, slender, 

 strongly curved apically, the pul villi a little longer than the claws. 

 Genitalia; basal clasp segment long, stout; terminal clasp segment 

 long, stout; dorsal plate short, broad, deeply and triangularly 

 emarginate; ventral plate long, tapering, broadly and roundly 

 emarginate. Harpes broad, long, irregularly rounded. 



Female. Length 3 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, light fuscous yellowish, tinged 

 with reddish apically; 18 or 19 segments, the fifth subsessile with a 

 length two and one-half times its diameter ; terminal segment greatly 

 prolonged, obtusely rounded. Mesonotum reddish brown, the sub- 

 median lines 37-ellowish, sparsely haired. Scutellum reddish yellow 

 with numerous fuscous setae apically, postscutellum dark red. 

 Abdomen thickly clothed with fuscous hairs, especially laterally, 

 dark red, the incisures and pleurae yellowish red, ovipositor pale' 

 yellowish. Wings hyaline, costa dark brown. Ovipositor about as 

 long as the abdomen, the terminal lobes long, tapering, narrowly 

 rounded. Otherwise nearly as in the male. 



Two females reared July 25th are distinctly darker than that 

 described above, the antennae being reddish yellow, mesonotum 

 shining dark red, submedian lines thickly haired. Scutellum and 

 postscutelliun a light reddish salmon, abdomen thickly clothed 

 with fuscous hairs, the incisures and pleurae dark red. Legs nearly 

 black. Type Cecid. ai65o. 



Rhopalomyia palustris Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 365 



This female was taken by sweeping sweetflag at Nassau, N. Y., 

 June 7, 1907. 



