86 
J'SYCHE 
[October 
4. Larger: flagellum not red beneath; hair of thorax above ochraceous; 
stigma dark brown; second submarginal cell broader (La Jolla, Calif.) 
^audialis Ckll 
Smaller: flagellum red beneath; hair of thorax above white; stigma 
ferruginous; second submarginal cell narrower. ( Las Cruces, N. M. ) 
prosopidis Ckll. 
5. Malar space a little longer than broad; mesothorax with much dark 
hair; abdomen comparatively narrow and parallel-sided covipacta Cr 
Malar space a little broader than long; mesothorax with little dark 
hair; abdomen broader; otherwise much like the last (Hanover, N. H. ) 
incequalis Say. 
Like compacta, with the same transverse ridges on lower part of area of 
metathorax; but differing from compacta by its shorter malar space and 
shorter fourth antannal joint; differing from inccqualis by its narrower 
abdomen, smaller size, and much less yellow pubescence of thora.x 
skinnai Viereck. 
6. liasal (lower) margin of second .submarginal cell about as long as basal 
margin of third: tegulae black. ( Washington State ) kincaidii Ckll 
Basal (lower) margin of second submarginal cell much longer than that 
of third; tegulae light rufous. (New Mexico) . sp. incert. (placed 
in series of conson, but distinct from the type of that species). 
7. Hair of face and thorax above all pure white, with no dark intermixed: 
malar space about twice as broad as long: flagellum all dark. 
gypsico/ens Ckll. 
Hair of face not white; or if so, that of thora.x partly dark. ... 8 
8. Hair of thorax above decidedly yellow or fulvous (very pale ochraceous 
in zonafiis) 9 
Hair of thora.x above greyish or whitish, or partly black . . . .15 
Hair of thorax with long fuscous hairs intermixed; abdomen strongly 
punctured; second submarginal cell very broad (Colorado) 
s 1711 III ans Cr. 
Hair of thorax without fuscous hairs intermixed; flagellum at most very 
faintly reddish beneath 10 
10. Tegulae light reddish, size small ii 
Tegulae dark 12 
II. Hind tarsi dark like their tibiae; abdomen less hairy (Illinois) 
ame/'icaiia Cr. 
