Orr, M.C. et al. 2015. Megachile (Megachile) montivaga (Hymenoptera: Megachilidae) nesting in live thistle (Asteraceae: Cirsium). Journal of Melittology. 48 (Mar. 2015), 1–6. DOI:https://doi.org/10.17161/jom.v0i48.4847.