Family Heterocheilidae
Total number of species: 1.
| Genus | Species | Author | No. of specs. or vials in collection | Biogeographic Region |
| Heterocheila | buccata | (Fallén, 1820) | 3 | Palaearctic |
| Heterocheila | buccata | (Fallén, 1820) | 15 | Palaearctic (Faroe Islands) |
| Heterocheila | buccata | (Fallén, 1820) | 187 | Palaearctic (Danish) |
| Heterocheila | buccata | (Fallén, 1820) | 64 | Palaearctic (Iceland) |