Re: [beemonitoring] Bee Specialists of Brassicaceae?
- I'm not of aware of any references focussing on Brassicaceae specialists but for North America, you might try A. R. Moldenke 1979 "Host-plant coevolution and the diversity of bees in relation to the flora of North America" Phytologia 43:357-419. It lacks a little something in rigor and some of the systematics are out of date but it is a useful starting point for those interested in host plant relationships of North American bees. Otherwise, one might check the original systematic literature. North American Brassicaceae specialists occur in Andrena (subgenera Holandrena, Leucandrena, Rhaphandrena, Scaphandrena and perhaps Melandrena) as well as Calliopsis (Micronomadopsis), Perdita (Perdita) - several species groups and Dufourea. I'm don't believe there are any Cardamine specialists in the North American fauna.bestJohn L. Neff
Central Texas Melittological Institute
7307 Running Rope
Austin,TX 78731 USA