Sunday, March 15, 2009

Wrinkled Bark Beetles of Berrien County, Michigan

The wrinkled bark beetles (Family Rhysodidae) are a small family of beetles (Order Coleoptera) that "live under the bark of hardwood trees (ash, beech, or elm) and pine" (Dunn 1996), "in wood that is already partially decayed and moist so they are not economically important" (White 1998).

Of the several hundred species known worldwide, 8 species are found in the U.S. and Canada--including 6 primarily in the eastern U.S (Arnett 1993), with 2 known from Canada--including 1 in Ontario (Bousquet et al. 1991); least 2 genera and 2 species are likely to occur in Berrien County.

In the following list, numerical notations in parentheses are used to indicate the known distribution of genera and species (following Arnett 1993), where (0) denotes broad distribution and (1+5) denotes distribution across the northeastern U.S. and Canada and the north-central U.S. Numbers in brackets are number of known North American species in the family and each genus.
Family Rhysodidae (wrinkled bark beetles) [8]:
  • Omoglymmius sp. (0) [2]
  • Omoglymmius americanus (1+5) {IL,IN,MI,OH,ON}
  • Clinidium sp. (1+5) [6]
  • Last revised: 3/16/09.

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