|scientific name Trechus oregonensis |
In moderately dense, usually mixed forests, with pronounced, slightly moist humus layer.
Member of the chalybeus group, with large head and short elytra, each eltron with at least 4 complete, punctate striae, elytra more or less iridescent. Microsculpture on disc of prothorax more open than in chalybeus, therefore disc lacks iridescence. Prothorax more cordate than in any other species in the group, hind angles more or less denticulate. Outer elytral striae better developed, 5th complete, or nearly so. Length 3.7-4.3 mm.
No information available.
Both larvae and adults are predatory.
This species is found in northwestern United States and western Canada. In Alberta, this species was recorded by Lindroth only from the south west corner. The Strickland Museum currently does not have any specimens from Alberta.
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