^16 . Professor Williston on the 



Face more yellowish, in the middle with a strong, obtuse carina, 

 leaving a deep depression on each side in which is lodged the 

 antenna. Palpi and proboscis yellowish. Mesonotum a little 

 shining. Abdomen more reddish toward the base. Wings with 

 a brownish tinge ; penultimate section of the fourth vein about 

 one-half as long as the ultimate section ; posterior cross- vein 

 nearly as long as the ultimate section of the fifth vein ; third 

 section of the costa not half the length of the second section. 

 Length 2^ mm. 



Two specimens. St. Vincent. 



• • • 23. Drosojyliila nana, n. sp. 



^ , 5 . Front a little broader above ; brown, somewhat yellow- 

 ish below. Antennae yellow, the third joint oval, brownish. Face 

 obscure yellowish-brown ; carina small, low, confined to the upjier 

 part of the face. Arista with four or five rays above and two long 

 ones below. Mesonotum yellowish-brown, shining ; pleurae more 

 blackish. Abdomen oval, black, shining. Legs lutescent yellow. 

 Wings yellowish hyaline ; third section of the costal vein more 

 than one-half the length of the second section ; anal cell incom- 

 plete, its outer cross-vein indistinct. Length If mm. 



Six specimens. St. Vincent. 



Phortica. 



.ScMner, Wien. ent. Monatschr., vi., 1862. Amiota, Loew, 

 Centur., ii., 9^, 18(32. 



1. Phortica scutellaris, n. sp. 



-^ . Front opaque black, brownish pollinose, a little wider pos- 

 "teriorly, less than one-third the width of the head. Antennae 

 brownish-yellow or yellow, the first two joints brownish ; arista 

 long plumose. Face flattened, grey pollinose. Thorax black, 

 thinly greyish-yellowish pollinose and but little shining; scutellum 

 flattened, opaque^black. Abdomen black or brownish- black, more 

 or less yellowish in the middle and at the tip ; venter yellow. 

 Legs wholly light-yellow. Wings greyish hyaline, distinctly 

 pubescent ; cross- veins approximated, the penultimate section of 

 the fourth vein scarcely as long as the first section of the third 

 vein ;. second and third veins nearly parallel, the distance between 



