Diptera of St. Vincent (Wr>^t Indies). 265 



ochraceous yellow. Palpi brown. Mesonotiim light ochraceous 

 yellow, lightly white pruinose on the sides, and with blackish and 

 yellow hair. Pleuraj brownish-yellow. Abdomen reddish-brown ; 

 pubescence chiefly black. Legs yellow, the coxas and femora light 

 yellow, the broad hind femora at the tip brown. Front tibiae about 

 one-third of the length of the tarsi, and shorter than the metatarsi ; 

 middle tibite with spines on the inner side ; hind tibial with two 

 rows of spines on the outer side. Wings lightly tinged ; the outer 

 part of the first section of the fourth vein, the anterior cross-vein, 

 and the base of the second of the third vein, thickened, forming a 

 straight spindle-shaped mass. Length 2| mm. 



Six specimens. 



SCIARA. 



Meigen, lUiger's Mag., ii., 263, 1803. 

 Tahi.e of Species. 



1. First longitudinal vein reaching as far as the furcation of 



the fourth vein 2 



Fiist longitudinal vein not reaching as far as the furcation 



of fourth vein 4 



2. Insertion of third longitudinal vein nearer to the tip of 



the wing than is the tip of the posterior branch of 



the fourth vein f/ermami, n. sp. 



Insertion of the third and the posterior branch of the 



fourth vein equidistant from the tip of the wing . . ;j 



3. Black species concliDut, n. sp. 



Yellow species sp. (;j). 



4. Furcation of the fifth and sixth veins beyond the 



anterior end of the cross-vein, the angle very acute, 

 the prefurca more than one-half of the length of the 



sixth vein 5 



Furcation of fifth and sixth veins opposite or before the 

 origin of the cross-vein, less acute, the prefurca less 

 than one-half the length of the sixth vein ft 



5. Mesonotum shining black dcJiilix, n. sp. 



Mesonotum yellow and brown iJclcctata, u. sp. 



6. Anterior branch of the anterior furcation strongly curved 



forward in its basal portion zi/ffoneum, n. sp. 



Anterior branch of the usual form 7 



7. Yellow or yellowish-red species sp. 



Black species eqna//<. n. sp. 



