362 Professor Williston on the 



the median stripe with about four or five rather strong bristles ; 

 front of the female of the same width as that of the male, but 

 •with two additional proclinate, orbital bristles. Third joint of the 

 antennre not more than three times the length of the second, the 

 arista moderately plumose on the basal half. Sides of the face and 

 the cheeks bare, the latter with bristles on the lower margin. 

 Mesonotum with well-developed centro-dorsal bristles extending 

 in front of the suture. Scutellum with two well-developed bristles 

 on each lateral margin, but without a marginal apical pair. Abdo- 

 men short, oval ; second and third segments each with a pair of 

 marginal bristles, the third with two additional lateral marginal 

 ones, and the fourth with a posterior row ; hypopygium without 

 bristles. Tibife without long hair, the bristles irregular. Third 

 vein of the wings setulose at the proximal end, the distal section 

 not sinuous ; anterior cross-vein nearly opposite the end of the 

 first vein and at the middle of the discal cell, the distance from the 

 anterior cross- vein to the posterior cross- vein equal to the length 

 from the latter to the angle ; posterior cross-vein much less oblique 

 than the apical cross-vein ; angle of the fourth vein with a fold, 

 but not distinctly appendiculated ; first posterior cell narrowly 

 open before the border of the wing. Head yellowish-grey ; 

 frontal stripe red or brownish-red : antennte black. Mesonotum 

 with three deep brown stripes, about as wide as the grey between 

 them. Abdomen oqaque yellowish-grey, changeable in different 

 reflection, with a median stripe and a row of three rather small 

 spots on each side; hypopygium grey. Legs black. Wings hyaline. 

 Length 4 mm. 



Numerous specimens. St. Vincent. The present 

 species does not wholly agree with the definition of the 

 genus, as given by Brauer and Bergenstamm. It differs 

 in having the first posterior cell open and inappendiculate, 

 and in having the hypopygium rather small. It may be 

 a Sarcophayula, Wulp. 



Sarcophaga. 

 Meigen, Syst. Beschr., v., 14, 1826. 



Taule of Species. 



1. Hypopygium or anal segments red 2 



Hypopygium or anal segments black or grey 5 



2. Hypopygium large, with abundant black hair and without 



bristles ; scutellum with three pairs of stout bristles ; 

 posterior tibiae of males with long hair . . otiosa, n. sp. 

 Tibife of male without long hair .3 



