Megachile brevis
Megachile brevis (Leafcutter bee)
Taxonomy
Megachile brevis is in the subgenus Litomegachile within the Megachile genus. The genus Megachile is known by the common name “leafcutter bees” because many members cut out circular or oval pieces of leaves and use them to line their nests. There are some exeptions; some Megachile use tree resin and others use chewed vegetation and mud in addition to leaf pieces. M. brevis is considered to be a prairie bee. It was found rarely in the Bee Atlas project, nesting in plant stems in Scott Co. and Cottonwood Co.
Description
Megachile are primarily characterized by having large chewing mandibles and scopae (pollen-collecting hairs) on the underside of the abdomens of females. Megachile brevis, like many Megachile species, is a mostly dark bee with light hair bands across the females' abdomens. Megachile brevis is small, relatively short, and wide-bodied compared to other Megachile.
Nest Structure
In the Minnesota Bee Atlas, we have only found Megachile brevis in nests made from plant stems. We have not found any in bee blocks.
Hole Sizes
no info at this time
Voltinism
Megachile brevis is known to have 2+ generations per year in other parts of the country. Unpublished evidence from Minnesota suggests 2-3 generations per year.
Activity Period
no info at this time
References
No information at this time.
Opened Megachile brevis nest, showing cells wrapped with cut leaf pieces