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butterflies. There are plenty of gaps to be filled in
by the butterfly watchers.
The nine maps with this article show the recorded
distribution for some common, large, easily identified
moths. Apart from the Cream-spot Tiger and the Small
Elephant Hawkmoth, all of them are likely to be found
throughout the county - can you help fill the gaps? Send
your records to Lt. Col. A.M. Emmet, Labrey Cottage,
Victoria Gardens, Saffron Walden.
An extra meeting (not in the programme) has been arranged
to record butterflies and moths in the Thaxted area - part
of the county with many gaps in the records. If you would
like to learn something of identifying spring butterflies
and caterpillars meet at Thaxted Guildhall, 11.00 am on
Saturday 29th May. Bring lunch and rambling clothes.
David Corke
LONDON NATURAL HISTORY SOCIETY
HELP WANTED in the production of an Atlas of the
Butterflies of the London area. I am preparing a
distribution atlas of Londons butterflies for the London
Natural History Society, intended for publication in 1986.
Butterflies are being recorded for each tetrad in the
society's recording area, which is a circle of radius 20
miles centred on St. Paul's Cathedral. This circle is
defined at intervals by the following places: Tilbury;
Brentwood; Harlow; Hertford; Welwyn; St. Albans; Kings
Langley; Chorleywood; Charlfont St. Peter; Gerrards Cross;
Slough; Egham; Chertsey; Addlestone; Byfleet; Bookham;
Redhill; Limpsfield; West Kingsdown and Swanscombe, and
contains portions of Essex, Hertfordshire, Buckinghamshire,
Surrey and Kent, as well as all of Middlesex.
All records of butterflies are invited for these areas for
the following periods!
Pre-1900; 1900 to 1959; 1960 to 1979; 1980 onwards.
The maps will be prepared using tetrads, (Two by two
kilometre squares), as the basic recording units, and
records will ideally include a grid reference, date and