1909] Brues, Affinities of the Phoridw. 107 



The species is very distinct from any known to me, the bare 

 hind tibiae, with the peculiar flattened pit-like structure at the tip 

 serving at once to distinguish it from any other so far described. 



Puliciphora sylvatica 'P- nov - 



Male. Length 1 mm. Black, with long piceous legs and very large 

 quite strongly infuscated wings. Head rather small and considerably 

 flattened. Four anterior frontal bristles proclinate, slender, but un- 

 usually long. Lower lateral angles of front with a pair of reclinate 

 bristles as usual. Eow above rather strongly curved downward medi- 

 ally. Ocellar row long, but rather slender. Ocellar tubercle present, 

 but no median frontal groove. Eyes faintly pubescent; postocular 

 cilia delicate ; cheeks with a small patch of rather small macrochsetae. 

 Proboscis small, retracted; palpi very much enlarged and flattened; 

 leaf-like, nearly as long as the head height and as broad as the eye, 

 strongly bristly along the inferior edge near and at the apex. Antennae 

 of moderate size, oval with a pubescent arista. Mesonotum subshining, 

 with one pair of dorsocentral macrochsetae and four strong scutellar 

 bristles. Abdomen smooth, faintly shining along the sutures, with a 

 few sparse bristly hairs scattered over its surface. Second segment 

 elongated, but scarcely longer than the third ; following growing shorter. 

 Hypopygium not prominent, the superior lamella more strongly hairy 

 than usual. Legs long and slender, quite thickly clothed with short, 

 velvety pubescence, but without any external macrochaetae or bristles. 

 Tibial spurs obsolete on all the legs. Wings very large, strongly infus- 

 cated, especially in front and along the veins. Costal vein extending 

 to or a little beyond the middle of the wing ; its cilia very short and 

 delicate, almost obsolete. Mediastinal vein present, very distinct. Tip 

 of first vein slightly but very appreciably closer to the humeral cross- 

 vein than to the tip of the third. Third vein simple, not furcate or 

 swollen at the tip and connecting closely with the tip of the costal vein ; 

 fourth vein almost straight; fifth and sixth slightly sinuate; seventh 

 vein nearly straight, very distinct and close to the margin. Halteres 

 pure black. 



Described from a single male specimen taken from sweepings 

 collected along a mountain stream near the base of Mount Consti- 

 tution (Humid transition area), Orcas Island, San Juan Co., 

 Washington, during July, 1908. 



