» Guide » Arthropods (Arthropoda)
» Hexapods (Hexapoda)
» Insects (Insecta)
» Ants, Bees, Wasps and Sawflies (Hymenoptera)
» Aculeata - Ants, Bees and Stinging Wasps
» Anthophila (Apoidea) - Bees
» Leafcutter, Mason, and Resin Bees, and allies (Megachilidae)
» Leafcutter, Resin, and Mortar Bees (Megachile)
» Subgenus Callomegachile, Giant Resin Bees (Megachile Subgenus Callomegachile, Giant Resin Bees)
» Shadow-winged Resin Bee (Megachile umbripennis)
Species Megachile umbripennis - Shadow-winged Resin Bee
Leafcutter and Mason Bees of the Genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and AlaskaBy Sheffield, Cory S. et al.
Canadian Journal of Arthropod Identification, 2011
"Our objective is to provide an up-to-date revision of the genus Megachile of this region, including an interactive key to the species, and summaries of biogeographic distribution and life history."
HTML version online
Phylogeny of the bee family Megachilidae (Hymenoptera: Apoidea) based on adult morphologyBy Gonzalez V.H., Griswold T.L., Praz C.J., Danforth B.N.
Syst. Entomol. 37: 261-286, 2012
California Bees & Blooms: A Guide for Gardeners and NaturalistsBy Gordon G. Frankie, Robbin W. Thorp, Rollin E. Coville, Barbara Ertter
Heyday (in collaboration with the California Native Plant Society), Berkeley, California, 2014
Info on this book, its focus, and its authors, can be found at this Univ. of Calif. Extension link
The book, including index, is 294 pages. The initial 8 chapters (126 pp.) focus on ecology, natural history, and family-by-family profiles of California bee taxa. Chapter 9 (pp. 127-144) addresses flowers and their relationship to bees. The remainder of the book focuses how to make home and other gardens more bee friendly to promote healthy and diverse urban/suburban bee populations. There are many fine photos.