478 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



broadly and roundly emarginate, the lobes short, broadly rounded and sparsely 

 setose. Style long, tapering, narrowly rounded apically. Occasionally a pale 

 yellowish male may be observed. 



Reared in large numbers from decaying elm bark collected at 

 Nassau, N. Y., March 11, 1911. Type C. a2136. 



Winnerlzia peclinata n. sp. Male. — Length, 1.75 mm. Antennae fuscous yel- 

 lowish; fourteen segments, the fifth with a stem three-fourths the length of the 

 subcyUndric basal enlargement, which latter has a length one half greater than its 

 diameter; terminal segment with a length about twice its diameter, narrowly rounded 

 apically. Palpi yellowish transparent, first segment with a length fully two and 

 one half times its diameter, the second with a length thrice its diameter, the third 

 a Uttle longer than the second, the fourth fully one-half longer than the third. Face 

 fuscous yellowish. Mesonotum dull fuscous brown. Scutellum and postscutellum 

 brownish black. Abdomen fuscous yellowish, the small, irregularly ovoid dorsal 

 sclerites shghtly fuscous; terminal segments and gentalia fuscous. Wings hyaline, 

 costa dark brown. Halteres yellowish transparent. Coxae and femora mostly 

 yellowish transparent; tibia^ light fuscous yellowish; tarsi mostly fuscous yellowish, 

 the fifth segment of the midtarsi yellowish; claws stout, strongly curved, unidentate, 

 the pulvilli short. GenitaUa; basal clasp segment moderately long, stout; terminal 

 clasp segment long, swollen at the distal fourth and apically with a strongly pectinate 

 chitinous spur; dorsal plate moderately long, broad, broadly and slightly emar- 

 ginate, the lobes broadly rounded; ventral plate long, deeply and triangularly 

 emarginate, the lobes broad, truncate and sparsely haired. 



Reared from partly decayed chestnut bark collected at Nassau, 

 N. Y., April 26, 1911. Allied to W. calciequina Felt. Type C. 

 a2109. 



Rhizomyia hirta n. up. Female. — Length 1mm. Antennae rather thickly haired; 

 twelve segments, the fifth with a stem one-fourth the length of the cylindric basal 

 enlargement, which latter has a length two and one half times its diameter; terminal 

 segment with a length six times its diameter. Palpi; first segment short, stout, 

 the second subrectangular, with a length four times its diameter, the fourth a httle 

 longer, slender. Mesonotum fuscous yellowish. Scutellum, postscutellum and 

 abdomen reddish yellow, the basal segment fuscous. Wings hyahne, costa dark 

 brown, subcosta uniting therewith at the basal fourth. Halteres yellowish, fuscous 

 subapically. Coxa? and femora basally yellowish; femora distally and tibia; fuscous 

 yellowish, the tarsi darker; claws long, slender, strongly curved, the pulvilli shorter 

 than the claws. Ovipositor short, terminal lobes broadly ovate and sparsely setose. 



Reared from a reddish, blister-like leaf mine on Crataegus taken 

 at Bath, N. Y. Type C. al756a. 



Dasyneura communis n. sp. Male. — Length 1.3 mm. Antennae dark brown; 

 sixteen segments, the fifth with a stem three-fourths the length of the cylindric basal 

 enlargement, which latter has a length one-half greater than its diameter; terminal 

 segment produced, tapering to a narrowly rounded apex with a length five times 

 its diameter. Palpi; first segment short, incrassate, the second narrowly oval, the 

 third one-half longer, slender, the fourth one-fourth longer and more slender. Meso- 

 notum shining dark brown. Scutellum and postscutellum dark brown. Abdomen 



