David L. Wagner is a professor at the University of Connecticut with interests in Lepidoptera (butterflies and moths) and invertebrate conservation. He obtained his Ph.D. in entomology at the University of California, Berkeley. Wagner has published on bees, dragonflies, tiger beetles; insect behavior and insect ecology; the importance of early successional habitats to plants, insects, and other wildlife in forested landscapes; and many papers and a book on imperiled butterflies and moths. Much of his current focus is on the consequences of global insect declines, and especially the role of drought as a primary driver of faunal change across arid lands of the American Southwest and the Neotropics. He has authored 11 books & 240 scientific papers. His new book on Moths of the World is an accessible, introductory resource on these nighttime pollinators. His passion obsession is caterpillars: finding ones that have unknown early stages, photographing these, documenting their host associations and behaviors, and sharing this

information. His Caterpillars of Eastern North America: A Guide to Identification and Natural History (Princeton Field Guides) was featured in the New York Times, won a national book award, and has enjoyed wide usage—it is presently in its 13 th printing.