AMERICAN DIPTEKA. 361 



so very short ; first vein ending midway between the humeral cross-vein and the 

 tip of the costa ; fourth vein evenly curved, fifth and sixth convergent to the 

 middle, then sharply divergent; seventh vein very close to the anal margin of 

 the wing. 



Described from a single female specimen from St. Vincent, West 

 Indies (No. 17). 



This species is most easily recognized by its brown wings and the 

 configuration of the light veins. 



Aphiochreta picta Lehman. (Plate vii, fig. 28.) 



Lehmann, Hamh. Observ., 1822, p. 43. 



Zetterstedt, Ins. Lapp., 797, 12 (interrupta). 



Macquart, S. a Buffon., fi, 628, 17 (interrupta). 



Schiner. Fauna Austriaca, ii, 337 [interrupta). 



Coquillett, Canad. Entomol., xxvii, 104 (interrupta). 



Becker, Monogr. Phoridse, p. 52. 

 Male. Length 2.5 mm. Wholly yellow ; thoracic dorsum somewhat shining, 

 with four distinct scutellar macrochsetse and one pair of dorsocentrals. Head 

 usually entirely yellow, including the front and greater part of the cheeks, 

 although the former is sometimes gray pollinose ; frontal bristles all present and 

 in the usual portions: second antennal joint rather large, with a somewhat 

 pubescent arista ; cheeks with a row of bristles in addition to the usual two stout 

 macroch setae ; palpi feebly or not at all bristly. Pleura' below the roots of the 

 wing and posterior face of middle, coxa- with small black dots. Halteres and 

 legs yellow, the tips of posterior femora infuscated. Hind tibiae lined with black 

 and distinctly ciliated, under side of hind femora with black bristly hairs. Wings 

 tinged with yellowish brown ; the costal vein with short bristles, reaching to the 

 middle of the wing; veins yellowish brown. 



The female differs by the normally bristly palpi, the smaller third 

 antennal joint, the presence of only very short bristly hairs on the 

 hind femora. 



This common European species is represented in the collection 

 by specimens from Wisconsin (Wheeler). It has previously been 

 recorded from North America, — New Jersey (Smith's List); White 

 Mountains, N. H. (Slosson) ; St. Vincent, W. I. (Aldrich). 



Aphiochseta flava Fallen. (Plate vi, fig. 29.) 



Trineura flava. Fallen, Dipt. Scand. Phytomyzides, 7, 8. 



Phora flava. Zetterstedt, Ins. Lapp., 797, 10. 



Fhora flava. Zetterstedt, Dipt. Scand., vii, 2876. 



Phora flava. Schiner, Fauna Austriaca, ii, 343. 



Phora flava. Becker, Monog. Phoridse, p. 54. 

 Length 1.5 2 mm. Thorax, abdomen and halteres reddish yellow. Dorsum 

 of thorax opaque, covered with short black pile ; only two scutellar and one pair 

 of dorsocentral macrochsetse present. Head grayish yellow, front grayish pol- 

 linose. Antennas and palpi varying from reddish to bright yellow, of the usual 



TRANS. AM. ENT. SOC. XXIX. (46) NOVEMBER. 1903. 



