39 MICRO-LEPIDOPTERA: Col. A. M. Emmet, M.B.E., T.D., M.A., F.R.E.S., F.L.S., Labrey Cottage, Victoria Gardens, Saffron Walden, CB11 3AF. DIPTERA: D. A. Smith, 12 Tring Gardens, Harold Hill, Romford, RM3 9EP. MAMMALS: Mrs. F. Hughes, B.Sc, Ph.D., Westley Farm, Brent Pelham, Herts, SG9 OAD. REPTILES AND AMPHIBIANS: D. Scott, Court Hill, Church Lane, Little Leighs, Chelmsford, CM3 1PG. SPIDERS: P. Harvey, 9 Kent Road, Grays, RM17 6DE. HETEROPTERA: P. Kirby, Ph.D., Nature Conservancy Council, Northminster House, Peterborough. The Recorders compile and maintain detailed records of Essex fauna and flora, archaeology and geology. They welcome records from members which should include species, date of observation, location and, where possible, a six figure grid reference and any habitat or relevant ecological data. They will assist with identifications and answer queries on their subjects, but where a reply is necessary, please enclose a stamped, addressed envelope.