38 Bulletin of the Brooklyn Entomological Society Vol. XII 



long plumed above and below; face protruded well beyond eyes, cheeks 

 broad ; palpi slender, directed forward, very slender ; proboscis much 

 elongated, its length equal to that of thorax. Thorax with three post- 

 sutural dorso-centrals, three sternoplurals ; under surface of scutellum 

 with a few weak hairs. Fourth ventral segment of abdomen cleft almost 

 to base. Hind tibiae with preapical dorsal bristle. Sixth vein of wing 

 complete ; third and fourth veins subparallel, the former bare at base. 

 Calyptrse subequal. 



Type, Neohylemyia proboscidalis sp. n. 



Neohylemyia proboscidalis sp. n. Male. — Black, slightly shining. Head 

 brown, frontal stripe opaque black-brown ; orbits deep brown ; when viewed 

 from the side the orbits appear deep brown as far down as middle of third 

 antennal joint, the lower portion, cheeks, and face being whitish pruinose; 

 antennae black; proboscis brown; palpi, yellowish. Dorsum of thorax 

 black-brown, slightly pruinose, indistinctly vittate ; lateral margins an^ 

 humeri distinctly gray pruinose ; scutellum as disk of thorax. Abdomen 

 dark brown, the surface with dense grayish pruinescence, and a median 

 longitudinal black stripe which is rather irregular in outline. Legs yellow, 

 fore femora slightly darkened above, tarsi fuscous. Wings clear, veins 

 yellowish. Calyptrae whitish. Halteres yellow. 



Eyes narrowly separated, frontal stripe complete, but very narrow on 

 upper half; third antennal joint over three times as long as broad; basal 

 joint of arista short and stout, extreme basal portion of terminal section 

 much .swollen, rays on base of arista about two thirds as long as arista ; 

 cheek twice as high as width of third antennal joint and one and a half 

 times as high as length of facial orbits beyond eye when seen in profile ; 

 proboscis geniculated beyond insertion of palpi, entire length equal to 

 that of thorax. Presutural acrostichals irregularly 2-rowed, slender and 

 of moderate length. Abdomen subcylindrical ; apices of segments with 

 strong bristles on dorsum. Legs slender ; fore tibiae with two or three 

 bristles on posterior surface, and a series of setulse on apical third of 

 antero-dorsal surface; mid femora with two or three long bristles on basal 

 third of ventral surface and three or four shorter and stouter bristles on 

 median third of antero-ventral surface; mid tibiae with four bristles — two 

 posterior, one postero-dorsal, and one antero-dorsal; hind femora with a 

 complete series of strong bristles from base to apex on antero-ventral sur- 

 face; hind tibiae with six or seven bristles — two or three antero-ventral, 

 two antero-dorsal, and two postero-dorsal, the first mentioned lowest in 

 position, the last stronger than the others ; claws and pulvilli long. Costal 

 spine short; outer cross-vein bent. 



Length 6 mm. 



Type, Quincy, 111., taken on sand-bar in Mississippi River (C. A. Hart). 



The species has much the appearance of a small Hylemyia, but 

 the proboscis is very much longer and more slender than in that 

 genus. 



