Vol. XI] COLE AND LOVETT—LIST OF OREGON D1PTERA 329 



Body shining black, the eyes only slightly higher than 

 long; wing with a small apical brown spot. Length 5.5 mm. 



Female : Frons reddish brown, face yellow, occiput con- 

 vex and black. Cheeks brownish yellow, gena corrugated to 

 above antennae. Frons deeply punctate almost to front 

 ocellus. Eyes rounded, not much higher than long. Frons, 

 occiput, and first two joints of antennae with short, black, 

 bristly hairs. First two joints of antennae reddish, the third 

 dark brown; arista blackish. Ocellar tubercle black. Palpi 

 dark brown. 



Thorax and pleura black, mesonotum opaque, the short 

 hairs black and bristle-like; margins of the mesonotum shin- 

 ing black. Scutellum red with two apical black bristles; 

 metanotum shining black; halteres reddish; several weak 

 bristles along posterior edge of mesopleura and about eight 

 weak propleural bristles; sternopleura below with a number 

 of rather strong black bristles. 



Abdomen entirely black, semishining above, with short 

 black hairs which are sparse and hardly perceptible. Tibiae, 

 apices of femora, first two joints of tarsi and base of third 

 brownish yellow; remaining tarsal joints and most of femora 

 blackish brown. Middle tibiae with three distinct apical 

 spines which are lacking in the other tibiae. Wings faintly 

 infuscated, base and costal margin brownish, the veins mostly 

 yellow; apical third of costal vein, posterior cross-vein, and 

 apices of other veins dark brown. In the apex of the wing 

 there is a rounded brown spot (see fig. 45). 



Holotype, female, No. 842, Mus. Calif. Acad. Sci.; A. B. 

 Black, collector, May 13, 1917. 



Type locality, Corvallis, Oregon. 



This species is in the group with T. aldrichi and T. polita, 

 having rounded eyes, rugose and pitted frons, and black 

 body. 



854. Tetanops luridipennis Loew 

 Burns, VI-5 (Thompson). The single specimen is darker 

 than the typical form and lacks the usual yellow color in the 

 wings. It may be an undescribed species. 



December 14, 1921 



