FIGURE265 in Systematics, distributions and bionomics of the Catopocerini (eyeless soil fungivore beetles) of North America (Coleoptera: Leiodidae: Catopocerinae) 3077

FIGURE265. Distributions of species in the Pinodytes cryptophagoides species group in northwestern North America. Map A. P. cryptophagoides, dots, extending from southeastern Washington State, through coastal mainland and insular British Columbia, to Sitka, Alaska. The distribution may have been achieved by coastal currents and dispersal on slide rafts. Map B. P. haidagwaii, dots, restricted to the Haida Gwaii (Formerly Queen Charlotte) Islands. This distribution argues for Pleistocene survival on the islands, which served as a Pleistocene refugium, and possibly for a pre-Pleistocene speciation event on the islands.