A. Introduction
AA. Methods
1. Key to the subfamilies of Eastern Canada and Adjacent United States
2. Key to the tribes and subtribes of Staphylininae in ECAS
3. Key to the genera of Staphylinina in ECAS
4. Key to the Dinothenarus species in ECAS
5. Key to the Ocypus species in ECAS
6. Key to the Ontholestes species in ECAS
7. Key to the Platydracus species in ECAS
8. Key to the Tasgius species in ECAS
9. The subfamilies of ECAS (for Staphylininae see section 10 onwards)
9.1 Aleocharinae
9.2 Euaesthetinae
9.3 Habrocerinae
9.4 Megalopsidiinae
9.5 Micropeplinae
9.6 Olisthaerinae
9.7 Omaliinae
9.8 Osoriinae
9.9 Oxyporinae
9.10 Oxytelinae
9.11 Paederinae
9.12 Phloeocharinae
9.13 Piestinae
9.14 Proteininae
9.15 Pselaphinae
9.16 Pseudopsinae
9.17 Scaphidiinae
9.18 Scymaeninae
9.19 Steninae
9.20 Tachyporinae
9.21 Trichophyinae
10. The tribes and subtribes of Staphylininae in ECAS (for Staphylinina see section 11)
10.1 Diochini: Diochus schaumi
10.2 Othiini: Atrecus
10.3 Staphylinini: Anisolinina: Tympanophorus puncticollis
10.4 Staphylinini: Philonthina
10.5 Staphylinini: Quediina
10.6 Staphylinini: Tanygnathinina: Atanygnathus bicolor
10.7 Staphylinini: Amblyopinina: Heterothops
10.8 Xantholinini