Diversity of Staphylinidae, some subfamilies in Northern Eurasia. A Megarthrus denticollis (Beck, 1817) (Proteininae) 0.5 mm; B Claviger longicornis Müller, 1818 (Pselaphinae) 0.5 mm; C Scaphidium quadrimaculatum Olivier, 1790 (Scaphidiinae) 1 mm (image by Anders Illum); D Euconnus hirticollis (Illiger, 1798) (Scydmaeninae) 0.5 mm; E Staphylinus erythropterus Linnaeus, 1758 (Staphylininae) 1 mm; F Gauropterus fulgidus (Fabricius, 1787) (Staphylininae) 1 mm; G Quedius levicollis (Brüllé, 1832) (Staphylininae) 1 mm; H Philonthus decorus (Gravenhorst, 1802) (Staphylininae) 1 mm; I Stenus comma Le Conte, 1863 (Steninae) 1 mm; J Sepedophilus testaceus (Fabricius, 1793) (Tachyporinae) 0.5 mm; K Tachinus bipustulatus (Fabricius, 1793) (Tachyporinae) 1 mm.