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Taylor, J.S. (1962-04-01). "Notes on Heriades freygessneri Schletterer (Hymenoptera : Megachilidae)". Journal of the Entomological Society of Southern Africa. 25 (1). hdl:10520/AJA00128789_3472. ISSN0013-8789.
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Michener, Charles D. (1968). "Heriades spiniscutis, a Bee That Facultatively Omits Partitions between Rearing Cells (Hymenoptera, Apoidea)". Journal of the Kansas Entomological Society. 41 (4): 484–493. JSTOR25083741.
Griswold, Terry L. (1994). "Taxonomic Notes on Some Heriadines, with Descriptions of Three New Species (Hymenoptera: Megachilidae)". Journal of the Kansas Entomological Society. 67 (1): 17–28. JSTOR25085487.
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Wilson, Joseph S. (2015-11-24). The bees in your backyard : a guide to North America's bees. Messinger Carril, Olivia, 1976-. Princeton. ISBN9780691160771. OCLC907556559.{{cite book}}: CS1 maint: location missing publisher (link)
Taylor, J.S. (1962-04-01). "Notes on Heriades freygessneri Schletterer (Hymenoptera : Megachilidae)". Journal of the Entomological Society of Southern Africa. 25 (1). hdl:10520/AJA00128789_3472. ISSN0013-8789.
