Megachilidae In Da House

Well, on the marigolds at least. I found this little Osmia Sunday around noon in my wife’s little flower patch. Temperature was very nice, mid eighties, clear sky, low humidity, bright sun.

Did you know that “Osmia” is Latin for “odor” or “scent”. The reason the bee Genus Osmia are named that way is because they leave a marker scent, often described as “lemony”, at each nest hole they start so they can find their nest holes again after foraging trips.

Their use of scent is so specific in fact that a recent study found that even by moving the nesting tubes and rearranging them while the bee was absent. Osmia instead of just going back to where they last were, would instead go nearly directly to the new location.