58 S. W. WILLISTON, M. D. 



and post-alar callosities more or less reddish, opaque, nearly bare, the short 

 sparse hair black, across the front thinly white pilose. Pleurae along the dorso- 

 pleural suture, in front, and on the front coxae, and in front of the halteres, ex- 

 tending down on to the hind coxae, with nearly white pile. Scutellum and first 

 three segments of the abdomen with long, abundant, white pile, the last two ab- 

 dominal segments with shorter white pile; venter wholly and abundantly long 

 white pilose ; the fourth and fifth segments above chiefly black pilose. Legs black, 

 or more or less deep red, bristles and hair chiefly lilack, but more or less inter- 

 mixed with white, especially on the hind pair; hind tibiae robust, on the outer half 

 behind with abundant white pile. Wings brown, first posterior cell broadly open. 



Hah. — Georgia, Florida. Two specimens (Prof. Riley, G. F. Frazar). 



Iflallophora orcina. 



A.silus orcinus Wiedemann, Auss. Zwei. i, 477, 79. 



Mallophora orcina Schiner, Ver. Z. B. Ges. xvi, 711 ; Osten Sacken, Cat. Dipt. 77. 



•J, . — Length lfi-22 mm. Black, black pilose. Head, thorax in front, before the 

 halteres, and on the scutellum, and the first four segments of the abdomen above, 

 with yellow pile. Basal joints of antennae and the bristle chiefly luteous. 

 Face shining, along the orbits with yellowish dust, a little pile near the base of 

 the antennae, and also a few bristles on the face, black; elsewhere the pile is 

 wholly yellow. Orbits thickly white pollinose. Thorax deep black, opaque; 

 with yellow pile across the front border, and a thin fan-like row in front of the 

 halteres, reaching down to the hind coxae, also a few hairs on the post-alar cal- 

 losities and in front of the root of the wings, of the same yellow color. Scu- 

 tellum and dorsum of the abdomen, except the last two segments, thickly and 

 long, yellow pilose ; the tip of the abdomen and the venter with black pile. Legs 

 pitchy black, witli blac-k pile, especially abundant on the hind tibiae, with a patch 

 in the middle in front of white pile, and their tarsi on the basal joints above with 

 more sparse hairs of the same color. Wings dark brown, the first posterior cell 

 wide open. 



5. Legs clothed wholly witli black. 



Eab.—G-Ji., D. C, Ariz., Ya. 



Mallophora ici:;ra n. sp. 



% ■ — Length 24 mm. Deep black, but little shining, everywhere black pilose, 

 except on head, humeri, and hind legs. Face with abundant light yellow hair, on 

 the sides above and on the front with short black pile. Basal joints of the an- 

 tennae reddish. Occiput and proboscis wholly light yellow bushy pilose; on the 

 sides of the thorax in front there is also some yellow pile. Dorsum of thorax 

 opaque black, hair on the scutellum and in front of the halteres with a reddish cast. 

 On the under side of the abdomen, near the tip, there are some yellow hairs. Legs 

 deep red, moderately pilose, on the front side of the hind tibial, before the tip, with 

 a small patch of silvery white pile, otherwise there is no light colored pile on the 

 legs. Wings yellowish brown, with similarly colored veins; first posterior cell 

 wide open. 



Hab. — Minn. One specimen, from Mr. Eugene Keen. The pile of 

 the abdomen and leu'S is not so long as in homhoides or orcina. 



