Mr. J. R. Malloch on Exotic MuscariiL^. 423 



three contiguons black vittre ia front of suture, the usual 

 splaces between the vittre brownish, the area laterad of the 

 vittse and a small transverse spot in front of suture on each 

 side of median line whitish pruinescent; vittae behind suture 

 contiguous on anterior half or more, a patch of whitish 

 pruinescence on each side of median vitta just in front 

 of scutellum ; pleura largely whitish pruinescent, margins of 

 sclerites blackish; scutellum whitish on margins apically. 

 Second and third abdominal tergites each with a pair of 

 large subtriangular black spots, which are narrowly sepa- 

 rated centrally and extend from anterior to posterior 

 margins; fourth tergite with a large subquadrate black 

 central spot and a less distinct brownish spot on eaoh side. 

 Legs black. Wings brownish. Calyptra3 and halteres 

 yellowish. 



Eyes at narrowest part of frons separated by about width 

 of anterior ocellus ; parafacial very narrow ; longest hairs 

 on arista longer than width of third antennal segment. 

 Anterior two pairs of postsutural dorso-centrals weak. 

 Bristles on posterior margins of second, third, and fourth 

 tergites, and median bristles on fourth strong ; basal 

 sternite with a few hairs. Fore tibia unarmed at middle; 

 mid-femur with some long fine hairs on basal half of postero- 

 veutral surface ; mid-tibia with a posterior bristle ; hind 

 femur with some fine hairs on basal half and four or five 

 long bristles on apical half of antero-ventral surface, the 

 basal half of postero-ventral surface with some bristles ; 

 hind tibia with one antero-dorsal and one antero-ventral 

 bristle. Fourth vein distinctly curved forward apically. 



Female. — Differs from the male in having the opaque 

 black frons about one-third of the head- width, the thoracic 

 vitta3 more brownish, and the dorsal spots on abdomen 

 larger. 



Length 6-7 mm. 



7yjoe, male, allotype, and one male paratype. Thereso- 

 polis, Brazil, ix. 1887. 



I believe this is the species recorded from Brazil by Stein 

 as corvina, van der Wulp. I have before me a paratype of 

 van der Wulp's species and it has the arista much shorter- 

 haired, the abdomen differently marked, and the wings 

 hyaline. 



Genus Emmesina, nov. 



Generic characters. — Most closely related to Myclcea, the 

 third wing-vein bristly at base, prosternura bare, and hind 



