To answer Kesler on light effect on the dance. You should contact Spangler at USDA in Tucson, AZ. He has done some interesting observing on how the dances are reduced to nil as the light intensity goes to nil!! Maybe they really don't dance in the dark? I would like to hear more about the effect of light on the dance from others... ================================================================== º Edward E. Southwick Department of Biology º º Phone 716-395-5743 State University of New York º º FAX 716-395-2416 Brockport, New York 14420 º º BITNET SOUTHWIK@BROCK1P U.S.A. º ==================================================================