492 PR0CEEDIN08 OF THE NATIONAL MUSEUM. vol.43. 



first division equal to other two together, fork of third vein not very 

 acute, fourth vein strongly curved basally and straight apically, 

 ending closer to wing tip than fifth ; halteres pale yellow. 



Length, 2-2f mm. 



Described from specimens of both sexes. Localities: Wyandotte 

 Cave, Indiana (Aldrich), and Mayfields Cave, near Bloomington, 

 Indiana (Banta), Types in Milwaukee Public Museum. Brues 

 states that "Aldrich recorded as A. nigriceps Loew what were pre- 

 sumably specimens from the lot described from Wyandotte Cave, 

 with the following note by Blatchley: ''Taken from the mouldy 

 remains of bread, chickens, etc., near the 'Augur Hole' three-fourths 

 of a mile from the mouth," 



I have found two specimens in the series of A. rufipes Meigen, in 

 collection that are referable to this species. They answer to the 

 description in every way, but I note that the mid tibia has more 

 distinct setulse than the hind. 



Locality. — Mammoth Cave, Kentucky. No other data. 



APmOCHiETA PEREGRINA, new species. 



Male. — Black-brown ; f rons broader than long, lower post-antennal 

 bristles not half as large as upper and very low down, the bristles 

 in first row forming a convex row with the upper post-antennals on 

 very near the anterior margin of frons, center pair in second row 

 noticeably lower on frons than the outer pair, antennae black, of 

 normal size, arista not twice as long as frons, pubescent, palpi yellow, 

 normal, dorsum of thorax black-brown, humeri and pleurae reddish 

 yellow, a darker brown streak over pleurae beneath wing base; 

 abdomen black, segments subequal, no noticeable bristles present, 

 numerous hairs on apical segment, hypopygium with two projecting 

 ventral processes, anal protuberance small, inconspicuous, yellow; 

 legs yellow, hind tibial setulge numerous but very small and indistinct, 

 a few long hairs on basal half of ventral surface of hind femora; 

 wings grayish, costa to distinctly beyond the middle, first division as 

 long as the other two, third about one-third as long as second, fringe 

 long but delicate, fourth vein distinctly bent at base and ending 

 rather nearer to wing tip than fifth ; ualteres yellow. 



Length, 1^ mm. 



Type.— C2ii. No. 14890, U.S.N.M. 



One specimen labeled "D. C. Collection Coquillett." No other 

 data. It was standing among the duplicate series of A. rufipes 

 Meigen. 



A female from Cabin John Bridge, Maryland (Knab and Malloch), 

 probably belongs to this species though much darker in color. 



