Fig. 17

Distribution map of Zercon forsslundi, Z. hamaricus and Z. polonicus. Empty markers (earlier records): circles—Z. forsslundi; diamonds—Z. polonicus; squares—Z. hamaricus. Filled markers (new records): black circles—Z. forsslundi; black squares—Z. hamaricus; gray stars – sympatric populations of Z. forsslundi and Z. hamaricus, dotted line—Arctic Circle.