26 G Canadiari Arctic Expedition, 1913-18 
Queen.— Head, thorax and abdomen coloured like the male, but the 
abdommal segments 1 to 5 have complete pale bands, emargmate in front on 
each side and narrowly so in the middle; the sixth segment has two spots; the 
ventral segments 2 to 4 have margin'al bands interrupted in the middle; ventral 
segment 5 has two large spots. No red on second dorsal segment. Length, 
about 14 mm. 
Worker. — Black, the following parts creamy-white: mandibles except 
tips, clypeus except a broad longitudinal line, broadest in the middle, scape in 
front, a bilobate spot above antennae, a narrow line on lower side of emargination 
of eye, an elongate spot on cheek behind eye, a parallel sided line on margin of 
pronotum next mesonotum, a small spot on each side of scutellum near wing, 
complete bands on the apices of dorsal segments 1 to 5, that on segment 5 
deeply emarginate on either side anteriorly, narrowly emarginate in middle; 
that on segment 4 less and on segment 3 still less deeply so; segment 6 with a 
large spot on either side containing a small black spot; apical margin of ventral 
segments 2 to 5, greater part of ventral segment 6, apex of femora, line on tibia 
and part of basal tarsi. The following parts red: irregular spot, often absent, 
on side of dorsal segment 1; a large, in some specimens a small, spot on side 
of dorsal segment 2; apex of segment 5; middle of femora, tibiae and tarsi. 
Hairs on vertex, dorsum of thorax and abdomen mostly black. Hairs on sides 
and underside of head, thorax and abdomen and on first dorsal segment of 
abdomen mostly pale. Length, 10 to 11 mm. 
One male, Nome, Alaska, August 24-25, 1916 (F. Johansen). One queen 
and twenty-six workers from a nest taken at Teller, Alaska, by Mr. Johansen 
on July 26, 1913. The queen is in alcohol, the other specimens dried. Most 
of the workers are in perfect condition. The nest contained larvae and was in a 
hole under an old willow shrub at the brink of the lake. The nest was half 
hidden in the hole, half protruding from it, and attached to the thick root of 
the willow, while heather twigs supported the outer layers of the nest. 
I have here followed Du Buysson in considering this form to be the marginata 
of Kirby. Kirby's description, however, makes no reference to the red spots 
on the abdomen or the long malar space. 
An old and smaller wasp's nest was found at Teller on August 3, 1913, by 
Mr. Johansen in an old rusty tin-can lying free on the tundra. Neither this nest 
nor any of the wasps in it were brought home. Dr. Anderson saw a wasp's nest 
the size of a man's head on a willow branch on the Hula-Hula river, Alaska, in 
November, 1908. There is no information to show to which species either of 
these nests belonged. 
SPHECOIDEA. 
The collection contains no representatives of this super-family. 
APOIDEA 
Represented by 150 specimens of bumble-bees. These consist of eight 
species, belonging to three groups, of the genus Boinbus Lat. Five of the species 
were found in Canada. 
Bombus Lat. 
KirbyellUs Group. 
Kirhydlus Group, Franklin. Trans. Amer. Ent. Soc. XXXVIII, p. 289. 
Size large. Pile long and fine. Malar space very long, one-third to one-half 
as long as the eye. Red-haired areas on the abdomen if present, are at the tip 
only. Li the males the genitalia are very different to those of the other groups, 
and the posterior tibiae are more like those of the female. 
