464 Transactions. 
except for a small tawny area at base, and ‘clothed with minute, golden 
pubescence ; style about two-thirds as long as third joint, fuscous but with 
minute golden pubescence. Face (fig. 65) broad, very short, practically 
concealed beneath antennae, and with a few short black bristle-like hairs. 
Cheeks restricted, golden-tawny, and with pair of short black bristle-like 
hairs. Proboscis longer than head-height, descending downward, tawny ; 
palpi tawny to golden, with long rigid black bristles on lower side but short 
prominent (fig. 66). 
Thorax tawny, golden-pruinose ; dorsum quadrate, darker to fuscous 
in some lights with indistinct narrow longitudinal stripes, chaetotaxy 
distinct (fig. 67); metanotum brownish-black and golden-pruinose; pro- 
pleurae with three black bristles and narrow black stripe above towa 
humeri; metapleurae with three large straight black bristles, the lower 
right angle and running for one-quarter of its length before curving abruptly 
to costa ; halteres tawny. а 
s tawny, minutely bristled and with numerous large black bristles, 
particularly on tibiae; none on tarsi except at apex of joints ; pulvilli 
en; claws tawny with fuscous tips. E 
Abdomen elongate, narrow, slightly tapering apically ; brownish-yellow, — 
posterior margin of each segment broadly tawny ; the whole clothed with. а 
short black bristles and with large ones across posterior margin of eac 
segment, particularly toward sides; a double row of these bristles on first 
segment. Genitalia (fig. 68) tawny, triangular in shape when seen 1701 
above, rather cone-shaped in profile, clothed with small black bristles, 
particularly at apex; the claspers tawny and elbowed. 
5. Length, 5-5 mm. 
Holotype: No. 1213, D. M. 
Habitat. —Watertalls, Humboldt Mountains (G. V. Hudson). 
