484 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 43. 



Type— C&t. No. 14879, U.S.N.M. 



One female Mount Katahdin, Maine, 5,215 feet. August 19, 1902. 

 One female, West St. Louis, Mssouri, May 23, 1904 (W. V. Warner). 

 This second specimen has the hind tibial setulse rather more widely 

 placed and the legs rather paler, but it is immature and not in very 

 good condition for examination. I have also seen one male and one 

 female from Boston, Massachusetts, and one female from Hamilton, 

 New Hampshire (Johnson). 



APmOCH.aBTA DIFFICILIS, new species. 



Very close to vulgata, but brownish black; the frons not shining, 

 the arista paler and more distinctly pubescent, the palpi yellow; the 

 abdomen brownish with paler hind marginal bands to segments ; the 

 legs yellow, the posterior pair darker, hind tibise not so strong and the 

 setulse less distinct at apex, and more widely placed than in the type 

 of vulgata; it is also not so robust as that species, and the costa is 

 longer in the female, in which sex the first division is hardly as long 

 as the other two together, though in the male it is distinctly longer. 

 In size similar to vulgata. 



Two males and one female, Beverly, Massachusetts, June-August, 

 1870. (No collector's name.) 



One female evidently the same species with label "N. C." One 

 male from Ithaca, New York (O. A. Johannsen). 



Tijpe—Csit. No. 14880, U.S.N.M. 



APHIOCH.ffi;TA ANOMALA, new species. 



Male and female. — Brownish black; frons black, both pairs of post- 

 antennal bristles about equal in size, upper directly in line above lower 

 pair, the center pair of bristles in first row nearly in transverse line 

 with the outer pair and much nearer to them than to the post antennal 

 bristles; antennse brown, arista paler and slightly pubescent, palpi 

 yellow, rather thickly bristled; thorax brown, in addition to the 

 scutellar bristles there are two fine hairs anterior to them ; mesopleura 

 with a large portion of the upper posterior angle covered with short 

 bristles, female abdomen with segments subequal and a few scattered 

 hairs, male abdomen with the last three segments haired laterally, hypo- 

 pigium large, anal protuberance small, legs and coxae yellow, hind 

 tibise with distinct setulse which are longest on the middle; costa to 

 middle of wing, first division about as long as other two together, third 

 less than one-third as long as second, fringe very long and strong? 

 fourth vein leaving at fork with a distinct bend and ending with a 

 slight upward bend at distinctly in front of wing tip ; halteres yellow. 



Length, 3^ mm. 



Type.— Cat. No. 14881, U.S.N.M. 



