Desoria - covered in short setae (hairs)
Isotoma - long setae on all body segments
Isotomurus - long setae on abd5+6 only
The "Isotomurus palustris" group contain some of the commonest and most widespread springtails in the UK. In Isotomurus palustris sensu stricto, the central stripe is prominent and unbroken except at the dorsal margins of tergites, with a mottled pattern on the flanks.