BioStor
 | A revision of the bees of the genus Melissodes in North and Central America. Part III (Hymenoptera, Apidae) (1961) University of Kansas Science Bulletin 42: 283-663 |
 | First Report Of Calleida (Calleida) Purpurea (Coleoptera : Carabidae) In Minnesota And A Note On Its Occurrence On Pasque Flower P P Tinerella (2000) Entomological News 111: 193-195 |
 | New Records Of Five Ground Beetles (Coleoptera : Carabidae) From Tallgrass Prairie Remnants In Western Minnesota P P Tinerella and D A Rider (2001) Entomological News 112: 319-322 |