Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Genus Lithurgopsis - Northern Cactus Woodborers

bee h - Lithurgopsis apicalis Megachile? Bee collecting pollen on ventral abdomen - Lithurgopsis Bee in cactus flower - Lithurgopsis apicalis Black Wasp - Lithurgopsis apicalis Mason Bee In Cactus Flower - Lithurgopsis - female Mason Bee Encounter - Lithurgopsis - female Mason Bee Sipping Cactus Nectar - Lithurgopsis - male Megachilidae? - Lithurgopsis apicalis - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Megachilidae (Leafcutter, Mason, and Resin Bees, and allies)
Subfamily Lithurginae (Woodborer Bees)
Genus Lithurgopsis (Northern Cactus Woodborers)
6 spp. in our area, 9 total(1)
Female clypeus

is extremely bulbous with a raised ridge at the top. This is a good example.

The tibia

has lots of dull spines and bumps on the outer surface as shown here . More pronounced in females. (2)
North and South America