Diadasia is a genus of bees in family Apidae. Species of Diadasia are oligolectic, specialized on a relatively small number of plant species.
Their host plants include asters, bindweeds, cacti, mallows, and willowherbs, although mallows are the most common and likely ancestral host plant for the whole genus. Its tribe is Emphorini.[1]
In the Sonoran Desert, Diadasia rinconis is considered the "cactus bee" as it feeds almost exclusively on a number of Sonoran Desert cactus species, its life cycle revolving around the flowering of the native species of cacti.[2] Members of this genus suffer attacks from a variety of parasitoids, including these families: Bombyliidae, Mutillidae, Ripiphoridae, Meloidae.
[3]
^Sipes, Sedonia D.; Tepedino, Vincent J. (2005). "Pollen-host specificity and evolutionary patterns of host switching in a clade of specialist bees (Apoidea: Diadasia)". Biological Journal of the Linnean Society. 86 (4): 487–505. doi:10.1111/j.1095-8312.2005.00544.x.
^"Bees".
^Linsley, E. G.; MacSwain, J. W. (Fall 1957). "The Nesting Habits, Flower Relationships, and Parasites of Some North American Species of Diadasia (Hymenoptera: Anthophoridae)". Wasmann Journal of Biology. 15 (2). University of San Francisco.
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