Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Rose-Chaffin, W. E. 1967b. The biology and ecology of Dendroctonusvalens Lec.; and the biology, ecology and control of Dendroctonus frontalis (=mexicanus) Zimm. central Mexico (Coleoptera: Scolytidae). Dissertation Abstracts 27B(11):4181-4182.