Beetles Identification Guide

combination of having the surface of the head and pronotum smooth between
the punctures, the prosternum without dense pubescence anteriorly, and the
elytral pubescence long, suberect, and at most slightly curved.
Sexual dimorphism: Males have 2 exposed abdominal terga (as in Fig. 255) and a
spine-like prolongation on the posterior margin of the hind trochanter; females
have only 1 exposed tergum (as in Fig. 255) and lack the spine-like prolongation
of the hind trochanter.
Distribution: Exclusively North American. In Canada the species is known from
Manitoba west to British Columbia.
Economic importance: As stated for the family.
Anthicus punctulatus LeConte
Diagnosis: The species is distinctive among the anthicids discussed here by the
uniform coloration of the elytral integument, which varies from brown to (usually)
black. In the other species the integument is either entirely pale (usually
yellowish) or more commonly bicolorous. When the integument is bicolorous,
the elytra may be piceous to black, with a pair of pale spots behind the middle.
Sexual dimorphism: Males have 2 exposed abdominal terga, females only 1 (as in
Fig. 255).
Distribution: Exclusively North American. In Canada the species is known from
specimens collected in British Columbia and from a few found in Manitoba, Saskatchewan,
and Alberta.
Economic importance: As stated for the family.
Anthicus scabriceps LeConte
Diagnosis: The species differs from all other North American Anthicus in having
small tubercles between the punctures on the dorsum of the head (except medially)
and the pronotum.
Sexual dimorphism: Males have 2 exposed abdominal terga, females only 1 (as in
Fig. 255).
Distribution: Exclusively North American. The species occurs in Canada from
Newfoundland west to Alberta.
Economic importance: As discussed for the family.
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