Extracted from Some Bees in the British Museum by Cockerell (1916).
.—Length about 9 mm; robust, the head and thorax dull
and rough (the face somewhat glistening), with erect dull white
hair; head broad, vertex elevated, eyes pale grey; head and thorax
black (with no red), the thorax with tubercles yellow, but no other
light markings; mandibles (except rufous ends, which are simple),
labrum (which has an apical patch of hair, but no tooth), band
on lower margin of clypeus (narrowest in middle), and narrow
lateral facemarks (shaped like the head and slender neck of a bird,upside down, ending narrowly but abruptly about level of antenna) ,
all bright yellow; posterior orbits wholly black; antennae long,
robust, not denticulate, third joint conspicuously shorter than
fourth, but much more than half its length; scape black and red,
hardly swollen; flagellum bright ferruginous, the basal half heavily marked with Ijlack above; area of metathorax rugose, but apically
with a pair of shining bosses; tegula? large, pale testaceous, black
at base, and with a yellow mark posteriorly; wings clear, with a
brownish apical cloud; stigma pnd nervures ferruginous; b. n.
going well basad of t. m.; second s. m. extremely broad, receiving
first r. n. far be\ond middle; third s. m. above about half as broad
as second; tibiie and tarsi bright red, the anterior and middle
tibiffi with a black spot behind; anterior and middle femora red,
largely black beneath and at base; hind femora black, with apex
and more than apical half above black; abdomen clear ferruginous;
first segment with basal half black except a V-shaped red mark
in middle; band on first segment, notched in middle, extremely
large but widely separated patches on second, large patches on
third (pointed and approaching in middle), and bands on 4 to 6,
bright yellow, the bands enclosing or nearly enclosing red spots
at sides posteriorly; apical plate notched; venter red, with a large
deeply bilobed black basal patch, and a small yellow spot beyond
middle.
Hab.—Vernon, British Columbia, April 15, 1902 {Miss
Ricardo), Brit. Mu&6um. A relative of A^. illinoensis Rob., but
much larger, and with the abdomen richly coloured. In the table
of Rocky Mountain species it runs to 47, but is not related to the
species there indicated.
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