The information given in this publication is 1) the systematic of the group, 2) the necessary characters for determination of the genera and the species, and for the 37 species found in the area, 3) the most given synonyms, 4) a short description of the species, 5) local name if any such is given, 6) ecology, 7) known distribution, 8) actual threats and 9) status and redlisting in each country.
The areas covered are Denmark, Faroe Islands, Finland, Greenland, Iceland, Norway and Sweden.
The book contains 102 pages, and is illustrated throughout in black and white with some colour photographs. 9788292173497