NO. 1988. THE DIPTEROUS FAMILY PHORIDM—MALLOCH. 515 



line with upper post-antennals, and distinctly nearer middle of frons 

 than outer pair, center pair in second row distinctly in front of outer 

 pair in same row and about one-fourth the distance from ocellar 

 triangle to upper post-antennals, antennae dusky yellow, arista pubes- 

 cent, distinctly longer than frons, palpi large, pale yellow, moder- 

 ately bristled; thorax yellow, very slightly shining, thickly covered 

 with short hairs, those of the posterior margin immediately in front 

 of scutellum longer, four equally long scutellar bristles, mesopleurae 

 with numerous short bristles; abdomen brownish black, segments 

 subequal, fifth and sixth with long hair-like bristles laterally and 

 posteriorly, ovipositor yellow, with long distinct hair-like bristles; 

 legs yellow, apices of hind femora distinctly darkened, basal third of 

 hind femora with long curled hairs on ventral surface, mid and hind 

 tibial setulas distinct, the terminal one on the latter almost spur-like; 

 wings clear, costa to middle, first division one and one-half times as 

 long as second, third about one-fourth as long as second, fringe barely 

 longer than diameter of costal vein, close and delicate, fourth vein 

 leaving at fork with a slight downward sweep and running with an 

 even arcuation to distinctly in front of wing tip; halteres yellow. 



Length, 2\ mm. 



One female, Hawaii, Maui (Koebele). 



Type.— Cat. No. 14908, U.S.N.M. 



APmOCH.ETA VARIATA. new species. 



Male and female. — Yellow; frons at least as long as broad, yellow, 

 with the ocellar region brownish, both pairs of post-antennal bristles 

 strong and of nearly equal size in male, both pairs in female much re- 

 duced but of equal size, center pair of bristles in first row very slightly 

 below the upper post-antennal pair transversely, and about equidistant 

 from them and the outer bristle in first row, which latter is considerably 

 higher on frons and near to eye-margin, antennae yellow, browned at 

 tip, more distinctly darkened in male, arista brown, bare, about one- 

 third longer than frons, palpi pale yellow, normal; thorax dull yellow 

 in female, brownish in male, mesopleurse bare, scutellum with two 

 strong bristles and two microscopic hairs anterior to them in male, 

 four nearly equal, strong bristles in female, in color the scutellum is 

 whitish yellow almost all over m female, in male the posterior margin 

 broadly yellowish; abdomen of male black, all segments very dis- 

 tinctly, posteriorly whitish yellow bordered, the sixth more broadly so, 

 second segment elongate but not greatly so, hypopygium yellow, anal 

 protuberance mconspicuous, yellow, female abdomen brownish except 

 first segment and posterior margms of remainder, which are yellow, 

 ovipositor yellow, no noticeable hairs on abdomen in either sex; 

 legs yellow, apices of hind femora distmctly darkened, hind tibise 

 slightly darker than other tibiae, mid tibial setulae indistinct, those on 

 hind tibiae distinct on apical two-thirds, two distinct end spurs on 



