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Species Megachile pugnata - Pugnacious Leaf-cutter Bee

Megachile ID Request - Megachile pugnata Megachile sp? - Megachile pugnata Leafcutter bee  - Megachile pugnata - female Megachile? - Megachile pugnata Bee for ID - Megachile pugnata - female Megachile? - Megachile pugnata Megachilidae, head - Megachile pugnata - female Megachile with big jaws on Black-eyed susan - Megachile pugnata
Classification
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
Size
Female: 12-18 mm. Male 11-13 mm.
Identification
In the female the clypeus is shortened and thickened producing a vertical face.
Range
most of NA north to LB-NW-BC south to GA-TX-CA(1)
Season
Jun-Sep(1)
Food
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.