I know this is a member of the member of the subfamily Prioninae, but I'm having trouble getting it to genus and species. None of the ones I've found match the spinal pattern along the thoracic margin and using the key in Swift et al's article "The genus Trichocnemis LeConte, 1851 (Coleoptera, Cerambycidae, Prioninae" the closest I could get was Callergates gaillardoti, a Eurasian species. Any assistance in identifying this beetle would be greatly appreciated.

It was found in the wood of a long-fallen and deeply rotten Monterey Pine.