Alfalfa Leafcutter Bee (Megachile rotundata)

Order: Hymenoptera (hy-men-OP-ter-a) (Info)
Family: Megachilidae
Genus: Megachile
Species: rotundata


This bug has been reportedly found in the following regions:

Marion, Arkansas
Modesto, California
Denio, Nevada
Columbus, New Mexico
Silverton, Oregon
Raymond, Washington
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Members' Notes:


On Jun 28, 2010, Pollafax from Denio, NV wrote:

This Bee almost completely distroyed my garden last 2 years. Tried everything. My son thought of something I had forgotten since it was never mentioned in ways to combat this evil bug. 7 Dust, start early in the season on your 1st flowers that you notice being cut. Dampon flowers lightly and load with 7 dust. You will see they have taken some but watch closely and in a few days they will be gone, When their favorite flower bloomed I dusted them just in case but if they came I could find no sign. I was told their was nothing I could do so I want people to know that this works. When I first went to bug sight their was a woman asking for help and now I cannot find her note. If you know who please let her know. I know what it's like to have this bee completely distroy your hard work.


On Aug 4, 2006, Hyblaean from Necedah, WI (Zone 4b) wrote:

Alfalfa leafcutter bee
From Wikipedia, the free encyclopedia

Scientific classification
Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Hymenoptera

Family: Megachilidae

Subfamily: Megachilinae

Tribe: Megachilini

Genus: Megachile

Species: rotundata

Binomial name
Megachile rotundata
Fabricius, 1787
The Alfalfa Leafcutter Bee (Megachile rotundata) is a European species of bee that has been cultured in the United States solely for pollination purposes. As a solitary but gregarious bee species, it does not build colonies or store honey, but is a very efficient pollinator of alfalfa... read more