406 
NEW NORTH AMERICAN BEES 
punctures that are as many as eight puncture widths apart, propodeal floccus 
very pale ochreous, nearly whitish; abdomen with its tergum polished and 
densely punctured, the punctures clear cut and mostly adjoining or one punc- 
ture width apart on the first tergite, from adjoining to one or two puncture 
widths apart on the elevated portion of the second, third and fourth tergites 
where the punctures are a little larger than on the depressed portions and from 
one to four puncture widths apart on the depressed portions of the second, 
third, and fourth tergites, second tergite with its elevated portion dowm the 
middle : depressed portion ; ; 10 : 18, fifth tergite with its surface finely reticu- 
lated and with nearly adjoining deep punctures, pygidium black, brownish at 
apex, its embossed area planate, the latter area bounded on each side by a 
deep furrow, pygidium truncate at apex, tergum with inconspicuous pale hairs, 
first, second, third, and fourth tergites with a broadly interrupted white hair 
band, fimbria pale golden. 
Allotype. — No. 21,145, U. S. National Museum, Washington. 
Based on a specimen collected in Maryland near Plummer’s Island, 
May 10, 1916, on flowers of Washingtonia (W. L. McAtee). 
Male. — Length 7 mm.; body black, mostly covered with bright ochreous 
hair; head covered with bright ochreous hairs throughout, with its facial line : 
transfacial line :: 46: 54, axial line : temporal line 23: 13, temples rounded, 
malar line : joint 3 of antennae : : 1 : 5, elevated portion of malar space virtually 
wanting, front striato-punctate, its striae indistinct and its punctures rather 
well defined, oceUocular line : ocelloccipital Une :: 10: 4, face polished and with 
large adjoining, or nearly adjoining punctures, clypeus apparently only slightly 
elevated directly above the apical margin, convex, polished and punctured 
much like the face, clypearea barely represented by a slight median longitudinal 
elevation, sculpture of the clypeus nearly hidden by the moustache, labrarea 
subemarginate, its width at base : length down the middle :: 7: 2.5, width at 
apex : length down the middle :: 4: 2.5, the latter length : greatest length :: 
2.5:3, labrarea at base : distance between lower angles of clypeus :: 7: 14, 
labrum with a fringe of golden hairs, joint 3 of antennae : 4 :: 5: 7.5, joint 4 
and following joints from nearly twice as long as thick to one and one-half 
times as long as thick, end joint twice as long as thick, flagel dulhsh, flagel 
somewhat undulate in outline, antennae blackish throughout, mandibles 
atypical, robust, extending a little beyond the lower corner of the clypeus, 
black except for the apical third which is very dark reddish, palpi nearly typi- 
cal; thorax covered with an abundance of slender, bright ochreous hairs, hairs 
of dorsulum somewhat shorter than the hair of mesopleura, dorsulum dullish, 
finely reticulated and coarsely punctured, the punctures ranging from adjoining 
to two puncture widths apart, notauli represented by an impressed duUish 
line, mesopleura with pale ochreous hairs throughout, mostly covered with 
shallow adjoining pits, scutel hairy and sculptured much like the dorsulum, 
metanotum hairy and densely sculptured, tegulae dark browmish stramineous, 
polished, and finely reticulated, wing base mostly blackish browm, subcosta 
blackish brown, stigma browmish stramineous, rest of Amins dull stramineous, 
first recurrent \min recei\md by the second submarginal cell beyond the middle 
