Diptera of St. Vincent (West Indies). 363 



3. First segment of the hypopygium with well-developed 



bristles on its posterior margin ; first longitudinal vein 

 with a few bristles at its proximal end ; scutellum 



without apical bristles chcetopfjgiali's. 



First segment of the hypopygium without bristles on its 



hind margin ; scutellum with a pair of apical bristles . 4 



4. Hypopygium large, both segments red, black hair ; meso- 



notum without black bristles in front . conclnnata, n. sp. 

 Hypopygium small, its first segment black . . 'pavida^ n. sp. 



5. First longitudinal vein without bristles . . micropygiallb^ n. sp. 

 First longitudinal vein with bristles sp. 



1. Sarcophaga micropygialis, n. sp. 



^ . Front above in width less than the length of the third 

 antennal joint ; vertex with two strong proclinate bristles, a little 

 in advance of the ocelli another, smaller, pair of reclinate bristles, 

 apparently the beginning of the rather long ones composing the 

 frontal rows ; ocelli with two proclinate bristles. Sides of the 

 face narrow, not more than one-half the width of the median flat- 

 tened surface ; a row of minute bristles near the eyes, otherwise 

 bare. The bare, hair-like tip of the arista about as long as the 

 plumose portion. Cheeks with black hair, on the inferior 

 margin with black bristles, reaching to the stout vibrissse, 

 which are situated only a little distance above the oral margin. 

 In colour, the sides of the front and face, the cheeks and the 

 posterior orbits are light golden yellow, opaque central portion 

 of the face grey ; frontal stripe and the antennae black. Black 

 stripes of the mesonotum broad ; the mesonotum with black 

 hair and with four rows of well-developed bristles, reaching 

 to the front part. Scutellum Avith four stout bristles, and 

 in the middle of the apical border a pair of minute bristles, 

 closely approximated. Abdomen black, scarcely at all shining, 

 the second and third segments each with four oval spots, some- 

 what variable in different reflections ; third segment with a 

 pair of median marginal bristles ; fourth segment with a strong, 

 posterior row of bristles, and an oval black spot on each side 

 anteriorly ; hypopygium small, black, grey or yellowish-grey 

 pollinose, its first segment with a row of black bristles before its 

 posterior margin. Legs black ; middle tibiae with a single stout 

 bristle on its posterior side near the middle; hind tibiae with several 

 bristles and without long hair on the inner side ; pulvilli long. 

 Wings nearly hyaline ; first longitudinal vein without bristles ; 

 third vein with bristles for more than half the distance to the 



