NEW MUSCOID FUES FROM THE ANDEAN MONTANYA 159 



row of strong and short ones intermixed, the short ones more or less sub- 

 marginal at sides, and a pair of short median discal ones ; anal segment 

 with weak apical suid stronger discal thinly covering about posterior half 

 of segment Ventral plates with strong spine bunches. Venation typical, 

 no stump at bend of fourth vein, the last section of latter strongly bent 

 in at base. 



Reproductive habit, probably leaf-larviposition of colored maggots. 



Type, Chromoepalpus uruhuasi new species. 



Chromoepalpus uruhuasi, new species. 



Length of body, 1 2 mm. ; same to end of spines, 1 3.5 mm. ; of wing, 

 1 2 mm. One female, Uruhuasi Bridge, about 6,500 feet, February 3, 

 1910, on flowers of Baccharis sp. 



Head with tawny-silvery pollen, parafrontals dusky with silvery pollen ; 

 frontalia, lunula, and first two antennal joints light reddish-brown, third 

 joint and arista brown. Occiput dark throughout, cinereous pollinose, 

 pile brassy-gray. Parafacial and cheek hairs black. Thorax, pleurae, 

 zind scutellum blackish, thinly silvery. Abdomen light yellow, with black 

 tip and median vitta. The abdominal black occupies the median im- 

 pressed area of first segment ; narrow median vitta on second segment ; 

 much broader median vitta on third segment, spreading along hind border 

 on to venter, widest at sides of segment ; and whole anal segment above 

 and below, with its ventreJ plate and the ventral plate of third segment. 

 Legs wholly deep rust-yellow or pale brownish-red, being a much deeper 

 shade than the yellow of abdomen. Wings wholly infuscate, both scales 

 of tegulae even more deeply infuscate. 



Type, TD394 1 (fly, dissection of uterus, slide of colored maggots). 



This species approaches the habitus of Xanthoepalpus gahanus. 



Tribe HYSTRICIINI 



Jurinia olivaurea, new species. 



Length of body to ends of anal bristles, 1 7 mm. ; of wing, 1 5 mm. 

 One female, eastern base of Huascaray Ridge, about 7,000 feet, Sep- 

 tember 21, 1 9 1 1 , on foliage. 



General olive-golden to golden-olive, the venter shining black and legs 

 wholly black. Whole face and cheeks honey-gold pollinose, extending 

 on the parafronteJs in oblique lights. Thorax and parafrontals golden- 

 olive. Pile of pcirafacials and parafrontals black, with a few blackish 

 hairs on cheeks ; occipital pile brassy-gray or yellowish. Frontalia pale 



