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Species Page - Arhopalus rusticus obsoletus
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scientific name    Arhopalus rusticus obsoletus    

Boreal North America west to the Rocky Mountains and south to Guatamala (Linsley 1962).

Adult flight period is June through July (Linsley 1962).

Color brown; head with gula finely rugose; maxillary palpi with last segment triangular (Linsley 1962). Eyes hairy, pronotal surface smoother than A. foveicollis, with shallow depressions, elytra dull with weak ridges (Yanega 1996). Lenth 16-25mm (Linsley 1962). Attracted to u-v lights. There is a possible record of a sub-species, A. rusticus nubilus (LeConte), from Indiana; it is virtually indistinguishable, but slightly darker, with coarser sculpture beneath the head, slightly more projected mandibles, and a lightly more smoothly convex pronotum. The somewhat similar western species A. productus (LeConte), though their ranges do not seem to overlap, is distinctly more elongated and slender (Yanega 1996).

life history
Breeds on Pinus, larvae feed on the bases of roots and dead pine trees (Downie and Arnett 1996).

No information available.

diet info
Hosts include Pinus sp, including P. tenuifolia (Linsley 1962).

This species is found in the Northwest Territories, British Columbia, Alberta and Saskatchewan in Canada (Bousquet 1991), and in Nebraska, Montana, southern California, New Mexico and Texas in the United States.

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References (4)
Specimen Info
There are 2 specimens of this species in the online database
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Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (2)


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