432 Professor Williston on the 



Distal section of the second vein not longer than the first 



section of the third vein lugubris, n, sp. 



3. Scutellum deep opaque-black, noticeably different from the 



mesonotum scutellaris, n. sp. 



Scutellum not noticeably different in colour from the 



mesonotum 4 



4. Third vein beyond the cross-vein nearly straight, terminat- 



ing at the tip of the wing pumila, n. sp. 



Third vein with a marked anterior curvature, terminating 



at some distance before the tip of the wing . dolorosa, n. sp. 



1. Limosina scutellaris, n. sp. 



$ , 2' J^rout black, moderately shining, the lower portion and 

 the face, and the antennse red. Mesonotum yellowish-red. Scutel- 

 lum deep velvety black. Abdomen deep black, slightly metal- 

 lescent, and thinly greyish-pollinose. Legs yellow, hind femora 

 blackish ; middle tiba3 with spinous bristles. Length 2-2i mm. 



Numerous specimens. St. Vincent, etc. 



2. Limosina pumila, n. sp. (PI. XIV., fig. 160, wing.) 

 ^ , 9 • Front opaque black, a median stripe or slender triangle 

 shining, below red or pitchy. Anteunje black ; arista finely 

 pubescent. Face black, obscurely red or pitchy across the middle. 

 Thorax black, moderately shining ; scutellum opaque, flattened, 

 with four strong bristles. Abdomen black, but little shining. Legs 

 luteous or brown, the femora and tibife more or less blackish, the 

 tarsi for the larger part yellowish ; middle tibiee with strong bristle* 

 on the outer side ; hind metatarsi but little longer than broad, 

 moderately dilated, scarcely more than half the length of the 

 slender second joint. Wings smoky hyaline ; the three sections 

 of the costa of nearly equal length, the first section with longer 

 bristles. Length 2-'2| mm. 



Six specimens. St. Vincent. 



3. Limosina dolorosa, n. sp. 



(^, $. Black, thinly greyish-dusted, opaque. Antennas black, 

 arista pubescent ; third joint transversely oval. Face and cheeks 

 black, but little shining. Scutellum coloured like mesonotum, its 

 margin reddish. Legs dark-brown ; middle tibite with stout 

 bristles on the outer side ; hind tibiae and tarsi of nearly equal 

 length, the metatarsi about half the length of the second joint. 



