Weevils - Entomological Society of Canada

than wide at apex, weakly curved; sides gradually diverging to apex;
surface smooth, with a few scattered, impressed points' Pronotum about
1.2 times wider than long, widest just behind middle; sides moderately to
strongly arcuate; disc evenly convex; surface shining and densely, deeply
punctured; setae brown, abundant, semirecumbent. Elytra about 1.5
times longer than wide and densely, randomly punctured; setae
brownish. erect. abundant. Abdominal sternites unmodified.
Distribution. British Columbia and Alberta, south in the
western United states to california and Nevada. Alberta: Banff. British
Columbia: Canal Flats, Cariboo, Chilcotin, Clinton, Indian Meadows,
"O'Keefe," Riske Creek, "sorenson Lake," and "Spious Creek."
Comments. Adults of this species can be readily distinguished
from those of other species in the family by the abrupt angle of the
junction of the rostrum with the head (Fig. 40) and by the fact that the
female lacks tufts of setae on the abdominal sternites. Nothingis known
of the biolory or life history of this species. Hamilton (1969) reports on a
single adult collectedonPinus species in California. Kuschel (1989) lists
lodgepole pine (Pinus contorta) and Jeffrey pine (P jeffreyl) as hosts.
Pityomacer Kuschel, 190: l-45.
Genus Pityomacer Kuschel
Three species are included in this genus by Kuschel (1989), one of
which occurs in western Canada. Members of this genus are
distinguished from those in Acromacer and Cimberls by the granulose
pronotum and by characters of the male genitalia. See Kuschel (1989)
for details of these differences. In addition, members of Pityomacer differ
from those in Cimberis by the antennae inserted closer to the middle of
the rostrum and by mandibles that are angulate on the outer margin and
unarmed on the inner margin. Members of this genus are distinguished
from those in Acromacer by the distinct punctures on the dorsum of the
basal portion ofthe rostrum and by other characters ofthe mouthparts.
Description. Head not retractile to eyes. Frons less than 2.0
times widei than rostral apex. Eyes small, round or slightly oval,
strongly convex. Rostrum slender, widened at apex, weakly curved, with
3 carinae or smooth lines separated by 2 rows of punctures' Scrobes
shallow. Antennae distant from mandibular sockets by about combined
length of first 2 antennal segments. Mandibles inserted laterally;
mandibular sockets partly exposed in dorsal view; sides of mandibles
angulate on outer margin, unarmed on inner margin. Pronotum
shallowly to deeply emarginate at apex, wider than long; surface of
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