|scientific name Chrysobothris trinervia |
This common species is one of the hardest to identify, it is similar to many other species of Chrysobothris. The beetles are black with a brassy to greenish lustre. Callosities on the front of the head are conspicuous to reduced by the coarse punctures, the front of the head is brassy green to coppery with green along the inner edge of the eye. Each elytron has 4 costa, the first is distinct, the others, are interrupted by the foveae.
Known from pines, spruce and Douglas fir (Fisher 1942, Bright 1987). In Alberta it has been reared from lodgepole pine and tamarack, and associated with white spruce, balsam fir and pines.
This species ranges from north of the Arctic Circle in Alaska and the Yukon in the North, south to Utah, Colorado in the west and North Carolina in the east (Fisher 1942, Bright 1987).
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