118 
Psyche 
[April 
2. Larger (14 mm.); apex of clypeus thickened and shallowly 
grooved semilaurita 
Smaller (10 mm.); apex of clypeus with a broad median 
produced area which is shining and impunctat e.suhlaurita 
Megachiloides umatillensis n. sp. 
6* Head broader than long, eyes somewhat converging 
below, densely covered with ochraceous pubescence in front, of 
the same general color but thinner above, short, thin and white 
on the cheeks, somewhat longer below; clypeus closely punc- 
tured, apex beneath beard entire ; mandibles obscurely reddish 
apically, strongly 3-dentate, rather thickly covered with whitish- 
ochraceous pubescence, inferior tooth subbasal, slender, acute, 
the pointed apex curved slightly back; cheeks broad, only slight- 
ly narrowed above, very closely and uniformly punctate through- 
out, the lower angle with a very slight hollow and tooth, these 
largely obscured by the pubescence; vertex very slightly round- 
ed, punctures close between ocelli and along the posterior margin, 
rather widely separated between eyes and ocelli; lateral ocelli 
about equally distant from eyes and edge of vertex; antennee 
black above, piceous below, the middle joints hardly twice as 
long as wide, the terminal joint longer, somewhat flattened but 
not dilated; tongue extremely long, the second joint of the labial 
palpus almost three times as long as the first. 
Thorax with entirely light pubescence, ochraceous above 
fading to whitish below; surface of mesonotum almost hidden 
by the pubescence, punctures fine and indistinct, the surface be- 
tween the punctures coarsely tessellate or granulate; scutellum 
densely pubescent, punctures close and fine; pleura very closely 
punctate, with long dense pubescence; propodeum largely bare 
laterally, with long dense pubescence behind, punctures fine any 
indistinct; tegulse piceous, densely pubescent anteriorly, closely 
and minutely punctate; wings subhyaline, faintly clouded api- 
cally, nervures testaceous, basal nervure beyond transverse me- 
dian, second recurrent nervure entering the second submarginal 
cell very near the apex, the first rather distant from the base. 
Legs with entirely pale pubescence, yellowish on middle and 
