Memoir 7
James P. Tuttle, Daniel Schönberger, Thomas W. Carr, and Julian R. Dupuis. Paper. (ISBN 979-8-9963673-0-6) 52 pages. Glossy full color.
The Hemileuca maia complex is a widespread and charismatic group of saturniid moths ranging from southern Canada to the southern United States yet remains one of the most taxonomically contentious in North America. This Memoir presents the most comprehensive review of the group’s diversification and phylogeography to date, integrating distributional data, genomic analyses, hostplant associations, pheromone trials, and paleo-ecological context. Genomic analyses place the diversification of the complex in the late Pliocene–Pleistocene. Regional case studies from the Southwest Border Region, Great Plains, Appalachians, Northeast, and Florida illustrate how glacial cycles, aridification, and habitat fragmentation shaped the mosaic of oak- and salicaceous-associated populations observed today. With an updated understanding of current distributions achieved through citizen-science platforms and integrating paleobotanical, genetic, and behavioral evidence, the authors propose a phylogeographic framework in which Pleistocene climate oscillations and shifting hostplant distributions drove cycles of isolation and expansion and offer testable hypotheses for future research.
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