"Microvertebrate, Highland" gives on the first page a simplified key, to help figure out what species you have found in the highland.
This page also includes a short introduction to how an insect and an aracnid is built.
On the opposite side the same species are presented, along with a schematic setup of the different habitats which include freshwater lakes and surrounding areas in the Greenlandic highland.
 
Jørgen Steen, Ilinniusiorfik 2014, 2 pages