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, RMS 9EP. MAMMALS: Mrs. F. Hughes, B.Sc, Ph.D., Westley Farm, Brent Pelham, Herts, SG9 0AU. REPTILES AMD 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.