Megachile inermis Provancher 1888

are host of

• Global Biotic Interactions: Melittobia chalybii Ashmead 1892
• Global Biotic Interactions: Leucospis affinis Say 1824

are parasitized by

• Global Biotic Interactions: Anthrax irroratus Say 1823

eat

• Global Biotic Interactions: Cirsium flodmanii (Rydb.) Arthur
• Global Biotic Interactions: Leucanthemum superbum (Bergmans ex J. Ingram) D. H. Kent
• Global Biotic Interactions: Spiraea tomentosa L.
• Global Biotic Interactions: Centaurea nigra L.
• Global Biotic Interactions: Monarda fistulosa L.

visit flowers of

• Global Biotic Interactions: Silphium perfoliatum L.
• Global Biotic Interactions: Cichorium intybus L. (Chicória)
• Global Biotic Interactions: Cichorium intybus L. (Chicória)
• Global Biotic Interactions: Cirsium arvense (L.) Scop.
• Global Biotic Interactions: Monarda fistulosa L.