Checklist for Tribe Willowsiini Yoshii & Yayuk, 1989 and region Nearctic (Ecozones)
Class | Entognatha Stummer-Traunfels, 1891 Entognathids | 30 176 1195 | Families Genera Species | Taxom | Subclass | Ellipura Börner, 1910
| 24 147 1055 | Families Genera Species | Taxom | Order | Collembola Lubbock, 1870 Collembolans, Snow flies, Springtail, Springtails | 20 125 974 | Families Genera Species | Taxom | Suborder | Entomobryomorpha Börner, 1913 Elongate-bodied Springtails | 6 51 418 | Families Genera Species | Taxom | Superfamily | Entomobryoidea Womersley, 1934
| 3 14 158 | Families Genera Species | Taxom | | Family | Entomobryidae Schäffer, 1896 Damp grain springtails, Entomobryid Springtails | 12 154 | Genera Species | Taxom | | Subfamily | Lepidocyrtinae Wahlgren, 1906
| 3 62 | Genera Species | Taxom | | Tribe | Willowsiini Yoshii & Yayuk, 1989
| 1 4 | Genus Species | Taxom |
Genera for Nearctic 1 Genera with 4 Species
Species list for Nearctic 4 Species
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