* Discussion on an Australian species, "Sceliphron formosum"* Discussion on an American species, "Sceliphron caementarium"* Online guide to eastern North American Sphecidae Documents how to differentiate "Sceliphron caementarium" from other Sphecids__NOTOC__
* Discussion on an Australian species, "Sceliphron formosum"* "Sceliphron caementarium"* Online guide to eastern North American Sphecidae