Orthoptera and allied insects of Essex 2003
Acknowledgements
1 would like to thank the follow ing recorders for sending in their 2003 sightings: P. Bergdahl. J.P.
Bowdrey, B. Chapman. N. Harvey, P.R. Harvey, M.J. Heywood. P. MacGregor. R. Payne, M. Smith
and B. Watts.
References
BALDOCK, D. (2000) Songs of bush-crickets and grasshoppers and the use of ultrasound detectors. British
Wildlife. 11: 319-323.
BROWN, V.K. (1983) Grasshoppers. Cambridge. Cambridge University Press.
BURTON, J.R (2001) The responses of European insects to climate change. British Wildlife. 12: 188-198.
CLARKE, E.J. (1948) Studies in the ecology of British grasshoppers. Transactions of the Royal
Entomological Society of London. 99: 173-222.
HAES, E.C.M. & HARDING P.T. (1997) Atlas of grasshoppers, crickets and allied insects in Britain and
Ireland. London: The Stationery Office.
MARSHALL, J.A. & HAES, E.C.M. (1988) Grasshoppers and allied insects of Great Britain andlreland.
Colchester. Harley Books.
RICHARDS, O.W. & WALOFF, N. (1954) Studies on the biology and population dynamics of British
grasshoppers. Anti-Locust Bulletin. 17: 1-182.
VAN WINGERDEN, W.K.R.E., MUSTERS, J.C.M. & MAASKAMP, F.I.M. (1991) The influence of
temperature on the duration of egg development in west European grasshoppers (Orthoptera: Acrididae).
Oecologia. 87: 417-423.
WIDGERY, J. (2001) Wildlife reports: grasshoppers and relatives. British Wildlife. 13: 59-60.
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Essex Naturalist (New Series) 21 (2004)