160 Annals Entomological Society of America [Vol. IV, 



Proctacanthus coquillettii n. sp. 



Total length 25 to 27 millimeters. Mystax and beard white or very 

 pale yellowish, palpi black with white hair, antennae dark, nearly black, 

 third segment short, oval, arista nearly three times as long as the seg- 

 ment which bears it. Thorax dark, brownish gray pollinose and with 

 black and gray hair; legs with black and gray bristles and gray hair; 

 femora uniformly dark, nearly black, tibiae and tarsi brownish red ; wing 

 hyaline with the middle third quite distinctly brown, abdomen uni- 

 formly dark, gray pollinose and with numerous gray hairs. Male geni- 

 talia rather short, appendages and other parts margined with dense 

 rows of gray hair. Female genitalia with the end piece densely pilose 

 but devoid of a terminal circlet of enlarged spines. 



It is easily known by the brown patch on the middle of each 

 wing, by the short third antennal segment and by the gen- 

 italia of the male. The female genitalia agree rather closely 

 with occidentalis but differs from all other species by the 

 spines at the tip being small and not plainly differentiated 

 from others of the last segment of the ovipositor. 



The female type and a male from Los Angeles, California, 

 collected by coquillett, for whom I am pleased to name the 

 species. 



Proctacanthus micans Schiner. 



Total length 26 to 36 millimeters. Mystax pale yellow, beard white, 

 palpi black with most of the hairs with which they are clothed white, 

 although there may be a few black ones. Occipito-orbital bristles 

 mostly pale but in some specimens there are plenty of black ones. 

 Thorax brown in ground color, grayish brown pollinose and with the 

 usual dorsal markings, numerous black bristles on the posterior part 

 with some gray hairs intermixed, anterior part with short black hairs; 

 wings nearly hyaline with the veins quite distinctly margined with 

 brown; legs rather dark from general view, femora dark before, brown 

 behind, tibiae and tarsi in large part brown but somewhat variable. 

 Abdomen dark, grayish brown pollinose; male genitalia rather small 

 and compact, appendages scarcely protruding beyond the other parts, 

 of nearly the same width throughout from side view and clothed with 

 fine white hair. Female genitalia black or brown, end piece sparsely 

 hairy and with a distinct circlet of strong spines at the tip. 



The small compact male genitalia and hyaline wings with 

 brown margined veins are characteristic. 



Numerous specimens from Colorado, Arizona and New 

 Mexico. 



Proctacanthus duryi n. sp. 



Total length 26 to 28 millimeters. Mystax pale yellow, beard and 

 hair of the palpi nearly white, in fact all the bristles and hairs of the 

 head are white or very pale yellowish. Whole body yellowish gray 



