BioStor
 | A catalogue of the Acarina, or mites, of the United States N Banks (1907) Proceedings of the U. S. National Museum 32: 595-625 |
 | New species of Acarina H E Ewing (1909) Transactions of the American Entomological Society 35: 401-418 |
 | A synopsis of the genera of beetle mites with special reference to the North American fauna H E Ewing (1917) Annals of the Entomological Society of America 10: 117-132 |
 | The arthropod fauna on the bark of deciduous and coniferous trees in a mixed forest of the Itasca State Park, MN, USA V Nicolai (1993) Spixiana 16: 61-69 |