Dolichopodidx of St. Vincent {West Indies) . 329 



7. Chrysotus long{pal2Jus, n. sp. 



^. Palpi pale yellow, toward the tip whiter, almost as long as 

 the head is high, proportionately rather narrow ; face slender iu 

 the middle, where the eyes almost touch, light dusted on the 

 triangle below the antennas ; front deep violet, not very shiniug ; 

 antenoEB yellow or brownish-yellow, last joint hairy, with sub- 

 apical arista ; cilia of inferior orbit pale. Dorsum of thorax green, 

 moderately shining. Pleurae black, with delicate pale dust. Cilia 

 of teguliB blackish or brownish; hal teres yellow. Abdomen bluish- 

 black, somewhat shining, with black hairs ; hypopygium concealed. 

 Coxas yellow, the middle ones dark at base ; femora and tibiae 

 yellow, in some ill-preserved specimens the hind ones a little 

 brownish ; the first joint of the fore tarsi is about as long as all 

 the rest ; the second, third, and fourth joints are slightly com- 

 pressed, from the tip of the first joint all are infuscated. Hind 

 femora with about three pre-apical bristles in a row, the tibias 

 rather hairy, and the tarsi infuscated from the tip of the second 

 joint. Wings hyaline, of the ordinary type, fourth vein ending in 

 the apex. 



$ . Palpi normal, face violet, like the front ; only the fourth 

 and fifth joints of the tarsi, with extreme tips of the preceding, 

 are infuscated. 



Length 1 mm. ; of wing, 1 mm. 



Nine males, three females. May. 500-1500 feet. 



8. Chrysotus ly'ictlcornis. 



Loew, Monogr., ii., 184 ; Wheeler, Psyche, June, 1890, 

 p. 358. 



Numerous specimens ; both sexes. May. Sea-level to 

 500 feet. 



9. Chrysotus acutus, n. sp. 



^ . Eyes contiguous for a considerable distance on the face ; 

 palpi dark ; front opaque black ; antennfe black, rather large, the 

 third joint large, with dense brown hair, drawn out in an acute 

 point, before the tip of which the arista is inserted. Thorax green, 

 moderately shining, sometimes considerably dulled and more 

 brownish ; pleurae black. Halteres and tegulce, with the tegular 

 cilia, black. Abdomen black ; hypopygium concealed. Coxeb 

 brown, the anterior ones with blackish hairs ; femora brown, vary- 

 ing somewhat in depth of colour the hind oues with a row of four 



