Hurd, P.D. and E.G. Linsley (1970), “A classification of the squash and gourd bees Peponapis and Xenoglossa”, ... “South American squash and gourd bees of the genus Peponapis (Hymenoptera: Apoidea)”, Annals of the Entomology Society of ...
Principal sunflower beesofNorth America with emphasis on the southwestern United States (Hymenoptera: Apoidea). ... Comparative behavior of bees and Onagraceae V. Camissonia and Oenothera bees of cismontane California and Baja ...
P. D. Hurd, Jr., and E. G. Linsley, A classification of the Squash and Gourd Bees Peponapis and Xenoglossa (Hymenoptera: Apoidea), Univ. Calif. Publ. Entomol., Vol. 62 (1970). L. E. Gilbert, Pollen feeding and reproductive biology of ...
For years entomologists, ecologists, and botanists interested in pollination problems have urged bee specialists to prepare a key for identifying bee genera in North and Central America. Although regional keys...
Biosystematics of the Arizona, California, and Oregon Species of the Seed Beetle: Genus Acanthoscelides Schilsky (Coleoptera: Bruchidae)
"It is a masterpiece, an instant classic of entomology." -- Edward O. Wilson "This definitive reference by an acclaimed expert accounts for 1200 genera/subgenera and 16,000 species of bees in the world.