|scientific name Dicerca tenebrosa |
June and July.
Dicerca tenebrosa is easily confused with other Dicerca species. The character combination of a short second segment on the antennae and the large tooth on the male's mesotibia is diagnostic. The head has an irregular raised area on the top, between the eyes. The rough sculpture of the elytra and pronotum is similar to beetles of D. crassicollis.
Common, this species is frequently encountered basking on spruce and pine logs.
Breeds on most conifers, including white spruce, balsam fir, Douglas fir, lodgepole pine, limber pine, and jack pine (Bright 1987, Nelson 1975).
From near tree line in the north with a subspecies found as far south as Florida (Bright 1987, Nelson 1975).
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