MAP

In national or regional maps small 'squares' are necessary to express the distribution of a species and its changes; thus one dot could indicate, for instance, a 'square' of the size of approximately 10 × 10 km. Such dots scaled down to fit a European map of the size of some 17 × 13 cm would become almost invisible and the quantity of records would reach intolerable proportions. For the purpose of this project 'squares' based upon the latitude and longitude expressed in grades and minutes are utilised, one MEB basic recording field (BRF) - i.e. grid unit or 'square' - measuring 30' × 60'. It appears that an area of 30' × 60' makes the ideal grid on a European scale... (translated into English: "milestone in the history of European lepidopterology"). The author of the Atlas is very proud of this appraise pronounced by an internationally a highly acknowledged expert.

Primary location: Stenstrup Denmark