AKT. 19 AMERICAN MUSCOII) FLIES — ALDRICH O 



defined basal silvery crossbands widening on the venter where the 

 first is also pollinose. Fourth segment entirely red in gi'ound color 

 without basal crossband, but showing considerable silvery pollen 

 below precisely as described by Wiedemann. 



Legs, reddish-brown; front tibia with one outer bristle. Middle 

 tibia with one on outer front side, two on outer hind side, and one 

 flexor. Hind tibia with a serieg of four of increasing length on the 

 outer hind side to the middle and several smaller in the same row, 

 three on inner hind side, the last about the middle. Wings hyaline, 

 bend of fourth vein nearly rectangular, the cross A'ein concave and 

 ending a little before the tip. the apical cell ratlier Avidely open. 



Length, 7 mm. 



Not represented in the United States National Museum. 



In several characters this species resembles Metadexia tricolor 

 ( oquillett, but has the first vein bare. 



114. ZELIA LIMBATA Wiedemann 



Dexia limbata Wiedemann, Auss. Zweifl., vol. 2, 1830, p. 371. 

 Leptoda Ihnbnta Brauesi and Bergbnstamm, Zweifl. Kais. Mus.. p't. 5, ISOl, 

 p. 406 (gen. ref.). 



One female labeled as type and agreeing with Wiedemann's descrip- 

 tion, especially in the front, which is golden pollinose on the upper 

 half, changing abruptly at the middle to cinereous. The locality is 

 " Brasilien." 



The specimen is a Zelki and veiy similar to Zelia vertehrata Ssij, 

 which is common enough in North America to be taken as a basis 

 of comparison. In llmbata the most striking diiference is in the 

 color of the front, already noted. Ocellars minute, proclinate, and 

 widely divergent; antennae red, third joint four times the second. 

 Arista with long, loose plumosity; scutellum with two laterals and 

 a large apical decussate pair. Abdomen with wide median black 

 stripe narrowly interrupted at base of segments, expanding behind 

 to enibrace the segment at its apical two-fifths, wider at sides; the 

 pollinose area of second segment yellow in ground color; fourth 

 segment red on apical third or more. No discals on any segment, 

 a median marginal pair on second, a marginal row on third and 

 fourth. Femora reddish on basal half or more; mid tibia with 

 two bristles on outer front side. Wings subhyaline, but the veins 

 broadly bordered with brown; bend of fourth vein rectangular 

 with distinct, short appendage (probably not specific) ; third vein 

 with a few hairs. Epistoma not more prominent than in vertehrata. 



Length, 11 mm. 



Not represented in tlie United States National Museum. 



