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. 



^ , ? . Front black, moderately shining, the lower portion and 

 the face, and the antennae 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 tibse with spinous bristles. Length 2-2^ mm. 



Numerous specimens. St. Yincent, etc. 



2. Limosina 'pumila, n. sp. (PI. XIY., fig. 160^ wing.) 



^ , $ . Front opaque black, a median stripe or slender triangle 

 shining, below red or pitchy. Antennae 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 tibiae more or less blackish, the; 

 tarsi for the larger part yellowish ; middle tibiae with strong bristles 

 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 2-1^ mm. 



Six specimens. St. Yincent. 



3. Limosina dolorosa, n. sp. 



(^,9- Black, thinly greyish-dusted, opaque. Antennae 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 tibiae 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. 



