Diptera of St. Vincent {West Indies). 387 



2. Heteroneiira flavipes, n. sp. (PI. XIII., fig. 135, wing.) 

 ^ , $ . Front gently convex on the sides, the eyes most approxi- 

 mated immediately below the antennae, and then immediately 

 receding, Front brown, below red, the narrow orbits more 

 yellowish. Antennae yellow, the third joint brown or blackish 

 at the tip ; arista black, finely pubescent. Face, cheeks, and lower 

 portion of the occiput light-yellow. Thorax black, but little 

 shining, the pleurae somewhat pitchy-black ; mesonotum covered 

 with light-coloured pubescence. Abdomen black, with black hairs. 

 Halteres nearly white. Legs pure light-yellow ; middle femora 

 with a row of short bristles below ; middle tibiae with a strong 

 spur ; all the tibiaa without distinct preapical bristle. Wings brown, 

 at the immediate base hyaline, and across the middle subhyaline ; 

 penultimate section of the fourth vein but little longer than the 

 posterior cross-vein. Length 3 mm. 



Six specimens. St. Vincent. The front is compara- 

 tively narrow, distinctly less than one-third of the width 

 of the head. 



3. Heteroneura concinna, n. sp. 



^ , $ . Very much like H.flavipes, from which it differs in the 

 antennae being wholly light-yellow, in the wings being nearly uni- 

 formly blackish, except the immediate base, and especially in the 

 presence of distinct preapical bristles on the middle and hind tibias. 

 It is also a little smaller. 



Four specimens. St. Vincent. 



4. Heteroneura pleural is f n. sp. 



^ . Head, including the antennse and proboscis, wholly light- 

 yellow, except a minute spot near the vertex, and the upper part 

 of the occiput. Arista black, yellow at the base, very finely 

 pubescent. Mesonotum shining brownish-black, the fine pubes- 

 cence in an oblique light appeariug yellow ; pleuras light-yellow 

 with a spot of the same colour as the dorsum reaching down in 

 front of the wings ; metanotum dark-brown. Abdomen opaque 

 black, with black hair, the immediate base yellow. Legs light- 

 yellow ; hind and middle tibiae with a distinct preapical bristle. 

 Wings smoky hyaline ; the distal third, as far as the fourth vein, 

 and a spot covering the cross-veins brown ; penultimate section of 

 the fourth vein about one-third of the length of the ultimate 

 section of the fifth vein, and only a little longer than the posterior 

 cross-vein. Length 2i mm. 



One specimen. St. Vincent. 



