1910] Cockerell—Bees from Eldora, Colorado Q45 
‘extending upwards broadly, then abruptly ending, except for a line along the 
eye, the whole like a closed hand with index finger pointed; a narrow yellow stripe 
along lower half of posterior orbits; scape yellow; flagellum yellow beneath; 
anterior knees yellow and their tibize broadly yellow in front; tubercles and two 
marks on upper border of prothorax yellow; middle legs with much yellow, but 
hind legs with only knees yellow; abdominal bands yellow, broad, entire, except 
the first, which is narrowly interrupted. A marked character of the species is the 
dull hairy mesothorax. 
Panurginus didirupa Ckll. Both sexes taken; the females at Grindelia. 
Panurginus bakeri Ckll. Both sexes at Phacelia. The female is new; it is 
about 514 mm. long, with the legs black, including tarsi; face all black, shining; 
wings smoky; nervures and stigma dark. , It resembles the female of P. pauper, 
but is easily separated by the dark tegule and more distinctly punctured meso- 
thorax. 
Nomada accepta Cress. One female at Grindelia. 
Triepeolus subalpinus n. sp. One at Grindelia. 
9. Length about 1114 mm.; a species with “false pygidium” relatively small, 
related to T. micropygius Rob., but anterior legs black, with tarsi reddish; middle 
femora black above, red beneath; hind femora and middle and hind tibie and 
tarsi red; spurs black; upper part of pleura covered with dull pale yellowish 
hair, thin in middle posteriorly, lower half bare, coarsely and closely punctured, 
but some of the shining surface visible on the lower part; labrum black, densely 
punctured; mandibles black, faintly reddish toward apex; clypeus closely, very 
minutely punctured, with scattered large punctures; antenne black, third joint 
reddish apically; mesothorax very densely punctured, with a light hair-margin at 
sides and behind, and a pair of short and broad, not dense, anterior longitudinal 
bands; teeth at sides of scutellum hardly produced; tubercles black; tegulz 
reddish-brown, closely punctured; second submarginal cell narrowed almost to a 
point above; black area of first abdominal segment a broad transverse band, 
truncate laterally; apical and basal light bands of first segment narrowly inter- 
rupted, the others entire, fifth with a large, light patch on each side; band on 
second segment with anterior lateral extensions broadly triangular, the angle 
formed very obtuse. Superficially like 7. pectoralis Rob., but easily separated by 
the reduced axillar teeth, form of band on second abdominal segment, much denser 
punctures on lower part of pleura, etc. 
Epeolus eldoradensis n. sp. Two at Grindelia. 
co. Length about 8 to 9 mm.; very close to E. argyreus Ckll., but wings brown- 
ish, middle and hind legs more or less red, and third antennal joint without red. 
The metathoracie area is larger than in argyreus, the cheeks are broader, and the 
femora are not so hairy. 
Eyes sage green; hair of face pure shining white; clypeus densely minutely 
punctured, without large punctures; antennz black; mesothorax with rather thin 
pale creamy hair, rather evenly distributed, so that there are no definite markings; 
axillar teeth very short and blunt; tubercles black; tegule dark reddish-brown; 
