1895.] NATURAL SCIENCES OF PHILADELPHIA. 313 



11 mm. Charlotte Harbor, Florida. Mrs. A. T. Slosson, to whom 

 this fine species is respectfully dedicated. A single specimen. 



Hypostena maculosa n. sp. 9 • 



Black, the front angles of the second and third abdominal 

 segments broadly yellow. Front at vertex two-thirds as wide as 

 either eye, vitta brownish, next the antennae one and one-fourth 

 times as wide as either side of the front, the latter light gray polli- 

 Qose; two pairs of orbital bristles; frontal bristles descending to base 

 of third antennal joint; antenna? seven-eighths as long as the face, 

 the third joint nearly tbree times as long as the second, three times 

 as long as wide; arista thickened on the basal third; sides of face 

 bare, each at the narrowest part one-tenth as wide as the median 

 depression, face in profile convex; ridges bare; cheeks one-seventh 

 as wide as the eye-height. Thorax bearing only three postsutural 

 macrocha?ta?, two sternopleural ; scutellum bearing two pairs of long 

 marginal macrocha?ta?. Abdomen bearing a marginal pair of 

 macrochreta? on each of the first two segments and a marginal row 

 on the third and fourth. Hind tibia? not ciliate. Wings hyaline, 

 third vein bearing three bristles at the base, the others bare, small 

 cross vein slightly before the middle of the discal cell, hind cross vein 

 midway between the latter and the bend which is rounded, apical 

 cross vein slightly arcuate, ending close to the third at a point less 

 than the length of the small cross vein before the tip of the wing. 

 Length 3.5 mm. St. Augustine, Florida. C. W. Johnson. A 

 single specimen. 



Myiobia depile n. sp. $ . 



Front at vertex less than half as wide as either eye, the vitta 

 brownish black, next the antenna? two-thirds as wide as either side of 

 the front, the latter golden pollinose; no orbital bristles; frontal 

 bristles descending to base of second antennal joint, only one in each 

 row directed backward; antenna? four-fifths as long as the face, 

 yellow, the third joint, except at base, black, two and one-half times 

 as long as the second; arista short pilose, thickened on its basal fifth; 

 sides of face and the ridges bare; cheeks slightly over one-fourth as 

 wide as the eye-height, bare except on lower half; palpi yellow; 

 clavate, one-fourth longer than the antenna?; proboscis yellow, in the 

 middle brown, slender, rigid, the portion beyond the basal articula- 

 tion nearly as long as height of head, labella well developed. 



