SOME NEW DIPTERA—COQUILLETT. 603 



14. Empodia wanting 15 



Empodia distinot, obovate, frintrrd witli sliort l)ristlt's. Black, the leg.s ])ro\vnish 

 yellow, knobs of halteres wliitish; joints 3 to o of antenna; broader than 

 long, mesonotum ])olished (abraded ?), the front corners opaque, legs destitute 

 of long hairs; wings hyaline, almost wholly covered with brown hairs, third 

 vein connected by a cross vein with the first, elsewhere distinctly separated 

 from it, reaching slightly beyond two-thirds length of wing, apex of (i st near 

 two-fifths length of third, fourth forking beyond the small cross vein; length, 

 slightly over 1 mm icebsteri, new specdes. 



Four females collected April 17, 1887, by Prof. F. M. Webster, for whom the 

 species is named. Ashwood, Louisiana. 



7]/j>..— Cat. No. 5-167, U.S.N.M. 



1.^. Wings unspotted, or at most with a few costal spots 18 



AVings covered with gray and whitish markings 16 



It). ^Markings of wings consist of many small whitish spots on a gray background. 17 

 ^larkings consist of a few gray, interrupted crosslmnds on a whitish hyaline 

 background. Head black, antennpe and mouth parts brown; body black, 

 humeri j'ellow, scutellum reddish brown, mesonotum opaque, den.sely gray 

 pruinose, legs dark yellow, middle tibiae outwardly fringed with rather long 

 yellow bristly hairs, knobs of halteres yellow; wings nearly covered with 

 ])rown hairs, whitish hyaline, a large gray costal spot near middle of costal 

 cell extending to the fifth vein, an interrupted crossband at tij:) of first vein, 

 extending to branching of the fifth, an irregular crossband l)eginning Ijeyond 

 apex of third vein and extending to apex of upper branch of the fifth, form- 

 ing a border to apical portion of both branches of fourth vein; third vein sep- 

 arated from the first except at its middle where it coalesces for a considerable 

 distance, costal vein greatly dilated from beginning of this union nearly to 



apex of third vein; length, 2 mm cockerellii. new species. 



Three female specimens, collected by Prof. T. D. A. Cockerel], for whom the 

 species is named. Custer County, Colorado. 



Ti/j)e.— Cat. No. 5468, U.S.N.M. 



17. Upper branch of fourth vein marked with a distinct w'hitish spot a short dis- 

 tance from its base. Black, legs brown, a whitish ring before apex of each 

 femur and both ends of each tibia, tarsi yellow, knobs of halteres yellow; 

 mesonotum opaque, brown, 2 vittte in the middle enlarging into a large spot 

 on the posterior half, also a curved row of 3 spots in front of each wing, and 

 the narrow lateral margins light gray pruinose; wings nearly wholly covered 

 with brown hairs, gray, three darker costal spots, one near middle of costal 

 cell, the second on the submarginal cells, the third beyond apex of third vein; 

 a white spot on small cross vein, a costal spot near middle of first posterior cell 

 ami a transverse one at three-fourths the length of this cell, one near three- 

 fourths length of second posterior cell, one below it in third posterior cell, 

 another near middle of lower branch of fourth vein, one in center of fourth 

 posterior cell, three in anal cell, and a very large one at base of wing; third 

 vein narrowly separated from the first nearly to its middle where it unites for 

 quite a distance, costal vein not dilated; length, 1 mm. . guttipennis, new' species. 

 Six females, collected Augu.st 5 l>y Prof. James S. Hine, who reports that they 

 bite severely. Medina, Ohio. 



Tt/pe.— Cat. No. 5469, U.S.N.M. 



Upper branch of fourth vein destitute of a white mark. Same as the preceding 

 species with the above and following differences: No dark spot near middle of 



