Diptera of St. Vincent (West Indies). 419 



2. Hijp'pelates (Siphornyia) dorsatus, n. sp. 



$ . Front opaque yellow, the minute ocellar spot brownish. 

 Antennas yellow, the third joint a little brownish in front ; arista 

 brown, slender, bare. Face, cheeks, proboscis and palpi yellow ; 

 proboscis elongate, the labella slender and turned backward. 

 Mesonotum, except on the sides and posterior margin, black, but 

 largely concealed beneath light-yellow dust ; thorax elsewhere 

 yellow, opaque. Scutellum convex, yellow, with two small, 

 approximated bristles at the tip. Abdomen yellow, the second, 

 third and fourth segments with three series of black, subconfluent 

 spots, of which the middle ones extend furthest back. Legs light- 

 yellow ; spur of the hind tibise very long, curved and black. 

 Wings nearly hyaline ; second section of the costal vein nearly 

 twice the length of the third section. Length 2f mm. 



One specimen. St. Vincent. 



3. Hippelates equalis, n. sp. 



^ , $ . Front broad ; the very large shining black triangle 

 extends to near the root of the antennge ; remainder of the front 

 opaque black. Antennae, face, and the very narrow cheeks yellow. 

 Occiput black. Thorax light reddish-yellow, the mesonotum 

 shining. Scutellum flattened subquadrate, the marginal bristles 

 remote from each other on the angles. Abdomen reddish-yellow, 

 the distal segments somewhat obscure. Legs wholly light-yellow; 

 spur of the hind tibiae long, curved and black. Wings greyish 

 hyaline ; second and third sections of the costa of nearly equal 

 length. Length 2 mm. 



Four specimens. St. Yincent. This species is 



related to H. palUdus, Loew, but will be distinguished 

 by the colour ot' the front. 



4. Hippelates dorsalis. 



nippelates dorsalis j Loew_, Centur., viii.^ 75. — Cuba. 



^, $. Front broad, light-yellow opaque; vertical triangle 

 reaches to about midway, and is shining black or dark red, some- 

 times partially concealed beneath greyish dust. Third joint of the 

 antennae large, rounded ; on its upper part black, below yellow 

 The face, the moderately broad cheeks, and the palpi yellow, the 

 proboscis block. Thorax reddish-yellow, the mesonotum black or 



