Some interesting aculeate Hymenoptera records for 1999-2000 References ARCHER, M.E. (2000) The British Potter and Mason Wasps: A Handbook. Vespid Studies, York. BAKER, D.B. (1994) On the nomenclature of two sibling species of the Andrena tibialis (Kirby, 1802) group (Hymenoptera, Apoidea). Entomologist's Gazette 45: 281-290. BEAUMONT, A. (1903) Nomada guttulata. Schenck, at Gosfield, Essex. Entomologist's Monthly Magazine 39: 300. BONIFACE, T. (2000) Nationally Important Site in Essex. Essex Field Club Newsletter31: 15. BONIFACE, T. (2001) Fungus Foray - wax-caps in churchyards around Chelmsford, 4th November 2000. Essex Field Club Newsletter 34: 21-22. EDWARDS, R. (Ed) (1998) Provisional alias oj the aculeate Hymenoptera oj Britain and Ireland (Part 2). Biological Records Centre. ELSE, GR. (1995) The distribution and habits of the bee Hylaeus pectoralis Forster, 1871, (Hymenoptera: Apidae) in Britain. Bt: J. Ent. Nat. Hist. 8: 43-47. FALK, S. (1991) A Review of the Scarce and Threatened Bees, Hasps and Ants of Great Britain. Research and Survey in Nature Conservation 35. Nature Conservancy Council, Peterborough. HANSON, M..W. (1992) Bees Wasps and Ants, in Epping Forest through the eye of the naturalist. Essex Naturalist. 11 (New Series): 126-131. HARVEY P.R. (1998) Interesting Hymenoptera records for 1997-1998. Essex Naturalist (New Series) 15: 38-45. HARVEY, P. (1999a) Recorder Report for ants, bees and wasps (aculeate Hymenoptera). Essex Naturalist (New Series) 16: 41-45. HARVEY, P. (1999b) The mining bee Melitta haemorrhoidalls rediscovered in Essex. Essex Field Club Newsletter 30: 11. HARVEY, P. (2000) Observations on the bec Lasioglossum cupromicans. BWARS Newsletter Spring 2000: 23. HARVEY, P.R. (2001) Notes on Essex specialities. 5: the mining bee Colletes halophilus. Essex Naturalist (New Series) 18: 161-162. HARVEY, P.R. & HACKETT, D. (2001) Anew Essex record of the Yellow Loosestrife Bee Macropis europaea Warncke, 1973. Essex Naturalist (New Series) 18: 62-63. HARVEY, P.R. & PLANT, C.W. (1996) A provisional list of the bees, wasps and ants (Hymenoptera: Aculeata) of'Essex. Essex Naturalist (New Series) 13: 43-115. SAMUELS, A. (2001) The Grey Mining Hee Andrena cineraria refound in Epping Forest. Essex Naturalist (New Series) 18: 58-59. HARVEY P.R. & SCOTT, D. (2001) Odynerus simillimus Morawitz, F., 1867, rediscovered in Essex. Essex Naturalist (New Series) 18: 60-62. KNOWLES, A. (2001) Chrysura radians (Harris) (Hymenoptera: Chrysididae), a cuckoo-wasp new to Essex. Essex Naturalist (New Series) 18: 60. NICHOLSON, C. (1928) Notes on the solitary bees and wasps of Essex. Essex Naturalist 22 (2): 81-95. PAYNE, R. (1997) Two rare insects found in 1996. Essex Field Club Newsletter 20: 7-8. SMITH, F. (1846) Descriptions of the British species of bees belonging to the genera Chelostoma, Heriades, Ceratina, Eucera. Panurgus, and Anthidium; with observations on their economy etc. Zoologist 4: 1445-1454. TATTERSFIELD, P., O'TOOLE, C. & ISMAY, J. (1996) Chafford Hundred, Grays Thurrock Essex. A survey of aculeate Hymenoptera (bees, wasps and ants) and Diptera (true flies) and recommendations for their conservation. Penny Anderson Associates. 94 Essex Naturalist (New Series) 18 (2001)