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Biosystematics of the genus Trirhabda LeConte of America north of Mexico (Chrysomelidae: Coleoptera)
By Steve Munroe Hogue
Ph.D. dissertation, University of Idaho, 212 pp., 1970
Cite: 605155 with citation markup [cite:605155]
Apparently the most complete overall reference on Trirhabda to date...it's often repeatedly cited in later publications referring to the genus.

Hard to access in libraries, but can be ordered from UMI/ProQuest (for "UMI Publication Number", use "7027230").

Link
for UMI refers back to BugGuide.

 
Thanks for catching that, Brad
I fixed the link (seems I forgot to insert the URL when I initially posted).

PS: I haven't had the opportunity to view this work. So let me know what you think if you happen to purchase it. I'm very interested... seems well-respected in later publications that cite it.