Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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


Species Megachile pugnata - Pugnacious Leaf-cutter Bee

Bee - Megachile pugnata Megachile ID Request - Megachile pugnata Bee - Megachile pugnata bee - Megachile pugnata - male Leaf-Cutter Bee - Megachile pugnata - female Bee - Megachile pugnata - female Bee - Megachile pugnata - male megachile - Megachile pugnata - female
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 Megachilinae
Tribe Megachilini
Genus Megachile (Leafcutter, Resin, and Mortar Bees)
No Taxon (Subgenus Sayapis)
Species pugnata (Pugnacious Leaf-cutter Bee)
Other Common Names
Sunflower Leaf-cutter Bee
Synonyms and other taxonomic changes
=scobiculata, bucephala, disparilis, lucrosa, temporalis
Explanation of Names
Author: Say, 1837
Female: 12-18 mm. Male 11-13 mm.
In the female the clypeus is shortened and thickened producing a vertical face.
most of NA north to LB-NW-BC south to GA-TX-CA(1)
Visits flowers from several families, pollen specialist on Asteraceae. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.