254 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



frontal vitta opaque, orange yellow ; aides of front polished, except the 

 lower outer angles, which are golden yellow pruiuose; frontal bristles 

 descending slightly below the arista; face and cheeks silvery white 

 pruinose; sides of face bearing a triangular patch of short white bristly 

 hairs, extending nearly one-third of distance from the lowest frontal 

 bristle to the oral margin; antennae reaching six-sevenths of distance 

 to the oral margin, black, the first two joints reddish yellow, the third 

 about five times as long as the second, arista thickened almost to its 

 apex, the penultimate joint slightly longer than broad; palpi yellow, 

 proboscis brownish black. Thorax black, gray pruinose, marked with 

 four black vittse, bearing four pairs of postsutural dorso-central macro- 

 chaitfe and four sternopleural ; scutellum brown, the margin yellowish. 

 Abdomen yellow, the base of the first segment, a dorsal vitta, and the 

 posterior margin of the third segment black; the fourth segment and 

 bases of the two preceding yellowish pruinose, the macrochsetse only 

 marginal. Legs black. Wings blackish, the anterior basal portion 

 subhyaline, tinged in places with yellowish, the third vein bearing two 

 or three bristles near the base; calypteres white. Length, 11 mm. A 

 single specimen taken on Vieques Island in February. 

 Type.— Gat. No. 4373, U.S.K.M. 



HYPOSTENA VANDERWULPII Townsend. 



A single specimen captured on Vieques Island in February. The 

 species was originally reported from Florida, but also occurs in southern 

 California. 



Family DEXIDJE. 



MYOCERA RUFIANALIS van der Wulp. 



• A single specimen, from Oulebra Island in February. The species 

 was originally described from Mexico, but also occurs in Jamaica, West 

 Indies. 



Family SAROOPHAGID^. 



SARCOPHAGA OCCIDUA Fabricius. 



Fifty-five specimens, collected at Mayaguez, Bayamon, Utuado, and 

 Aguadilla in January; and Vieques Island, Arroyo, and Fajardo in 

 February. The species was originally described from the West Indies. 



SARCOPHAGA PLINTHOPYGA W^iedemann. 



Twenty-eight specimens, from Aguadilla, Utuado, and Mayaguez in 

 January, and Vieques Island, Culebra Island, and Fajardo in February. 

 This species was originally described from St. Thomas, West Indies, 

 and has been reported from Jamaica by Mr. Johnson and from Puerto 

 Rico by von Eoeder. 



SARCOPHAGA LAMBENS Wiedemann. 



Five specimens, from Vieques Island and Culebra Island in Feb- 

 ruary. Originally described from St. Paul, Brazil, and the West Indies, 

 it has already been reported from Puerto Kico by Mr. von Boeder. 



