382 Professor Williston on the 



4. Sapromyza exiil, n. sp. 



(^ , 9 • Front about twice as long as wide, opaque yellowish- 

 grey, with an opaque dark-brown median stripe, slightly narrowed 

 anteriorly. Antennae brownish-yellow, third ioint in part blackish, 

 rather narrow, about three times as long as wide ; arista pubescent. 

 Face black in ground-colour, thickly silvery grey-pollinose. Occiput 

 black, the narrow lateral orbits grey. Mesonotum densely yellowish 

 grey-pollinose, with three broad, dark coffee-brown stripes, the 

 middle stripe about equal in width to the adjacent light-coloured 

 stripes. Scutellum with the yellowish-grey stripes of the meso- 

 notum continued and uniting at the tip, leaving the middle as the 

 continuation of the middle brown stripe. Pleurae for the most 

 part shining black, somewhat thinly pruinose above. Abdomen 

 shining black, thinly greyish-pollinose in an oblique light. Legs 

 deep-brown, the femora more black, the base of the tibiae, the four 

 posterior tarsi and the front metatarsi yellow ; hind tibiae with a 

 well-developed preapical bristle. Wings light brownish-yellowish ; 

 penultimate second of the fourth vein more than one-half of the 

 length of the ultimate section. Length 4-4| mm. 



Eight specimens, St. Yincent. 



5. Sapromyza octovittata, n. sp. 



(J , $ . Front opaque yellow, rather longer than wide, with a 

 median brown stripe, on either side of which there are three stout 

 bristles ; ocelli with small proclinate bristles. Antennae yellow, 

 the third joint twice as long as wide ; arista short plumose. Face 

 and cheeks light-yellow, the former with a rounded black spot 

 above the oral margin in front. Thorax light opaque yellow, the 

 mesonotum with light-brown stripes, the median pair extending on 

 the sides of the scutellum. Pleurae with two brown stripes, the 

 one below the base of the wings, the other across the base of the 

 middle coxae. Abdomen yellow or brownish-yellow, with three 

 rows of small, dark-brown spots, forming three interrupted stripes ; 

 the spots are sometimes obscure, perhaps as the result of desic- 

 cation. Legs light-yellow, the four posterior tibiae with a proximal 

 narrow brown ring. Wings clouded with dark-brown along the 

 costa to the tip, on the cross-veins and on the base and outer part 

 of the fourth vein ; penultimate section of the fourth vein not 

 one-half the length of the ultimate section. Length 4-5 mm. 



This species has its markings, aside from those of the 

 wingSj very much as they are in S. macula. 



