NO. lOSn. MVSCOID FLIES FROM SOUTH AMERICA— TOWNSEl^D. 347 



Type.—Csit. No. 15187, U.S.N.M. Female, Nana, January 9, 1910; 

 TD4047 (long uterus). 



Co type, female, Arequipa, January 25, 1910; TD 4044 (long uterus), 

 m., cph. sic. 



Same reproductive habit. 



SALMACIA CH^TOSA, new species. 



Same size as the others. Four females from Nana, on flowers of 

 Flaveria; six males from Lima, Nana, Sullana, and Somate, Peru, on 

 flowers of Flaveria, S'pilantlies, Polygonum, and Telanthera. 



Abdomen reddish to dark; pollen silvery, especially on thorax and 

 head. Five bristle rows distinguishable on each parafrontal, the 

 bristles being thickly set. The front is whitish in ground color rather 

 than luteous, conspicuously silvery and especially noticeable as being 

 thickly bristly. The abdomen is narrowed and pointed in male, 

 being subconical, and often so in female. Antennae same as in 

 preceding. 



Type.— Ca,t. No. 15188, U.S.N. M. Female, Nana, January 9, 1910; 

 TD 4046 (short uterus with fully developed maggots), e., m. 



Same reproductive habit. 



SALMACIA ALPINA, new species. 



Length of body, 7.5 nun. ; of wing, 6 mm. One male, Tirapata, on 

 the high puna of the Lake Titicaca region, Peru, about 13,000 feet, 

 January 28, 1910, on flowers. 



Abdomen wholly black, silvery-white pollen on anterior portion of 

 segments. Thorax blackish «r dusky, the pollen faint. Scutellum 

 luteous. Front luteous, with only two bristle rows on each para- 

 frontal. Face and front silvery-white pollinose, the pollen almost 

 invisible on parafrontals except anteriorly. Third antennal joint 

 and arista wholly deep black. Occiput blackish, ashy, vertical area 

 luteous. Legs black. Wings yellowish on base and veins, tegulse 

 white. 



Type.— C2ii. No. 15189, U.S.N.M. 



Same reproductive habit. 



PROTOGONIA. new genus. 



The description is drawn from a single male specunen. Differs 

 from Triachora in the following characters: Second antennal joint 

 not at all elongate. Second aristal joint strongly elongate. Para- 

 facials beset with fuie hairs. The mner row of frontal bristles is the 

 main one, the two rows outside same being independent of the strong 

 descending frontals. No orbital bristles in male. A strong pair of 

 proclinate ocellar bristles. wScutellum with a pair of weak apical 

 decussate bristles, a stronger widely separated pair of discal bristles, 



