A Revised History of the Butterflies and Moths of Sussex

Description:

Set of two CD-ROMs. Includes all Sussex records for each species, dating from the 1850s. 2,000 2 km-square distribution maps depicting 100,000 records. Information on population changes, flight times, food plants, lists of variations, races, major aberrations and forms. Other sections of general interest, including photographs and biographical details on leading collectors; list of 3,300 references