He. Evans, OBSERVATIONS ON THE NESTS OF PARANTHIDIUM-JUGATORIUM-PERPICTUM (COCKERELL) (HYMENOPTERA, MEGACHILIDAE, ANTHIDIINI), The Pan-Pacific entomologist, 69(4), 1993, pp. 319-322
Nests of Paranthidium jugatorium perpictum (Cockerell) are described f
rom a small aggregation in Larimer County, Colorado. Nests are dug fro
m the ground surface and contain cells in closely packed series, each
cell lined with plant gums.