Included taxa
Saaristo, M. I. (2007b). A new subfamily of linyphiid spiders based on a new genus created for the keyserlingi-group of the genus Lepthyphantes (Aranei: Linyphiidae). Arthropoda Selecta 16(1): 33-42. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Ipa keyserlingi | Linyphiidae | 39, f. 3-4, 7-8, 11-12, 14-16 (mf, T from Lepthyphantes) | Ipa keyserlingi |
| Ipa pepticus | Linyphiidae | 39, f. 28-29 (m, Df) | Ipa pepticus |
| Ipa spasskyi | Linyphiidae | 40, f. 26-27 (mf) | Ipa spasskyi |
| Ipa terrenus | Linyphiidae | 40, f. 24-25 (mf, T from Lepthyphantes, removed from nomen dubium, S of Lepthyphantes quadrimaculatus) | Ipa terrenus |
| Lepthyphantes minutus | Linyphiidae | 35, f. 1-2, 5-6, 9-10, 13 (mf) | Lepthyphantes minutus |
| Wubanoides uralensis | Linyphiidae | 34, f. 17-21 (mf) | Wubanoides uralensis |
Genera
| Genus | Family | Page |
|---|---|---|
| Ipa Saaristo, 2007 | Linyphiidae | 38 |