| Description | Alex Paramov, Universidad de Los Andes; Mr Cyril F. dos Passos, Washington Corners; Dr J.A. Pastrana, R. Perry, Charles Darwin Research Station; Mr Per Inge Persson, Naturhistoriska riksmuseet; Bruno Pohl; Dr V.B. Poláček; E. Pollard, Monks Wood Experimental Station; Dr P. Popov, Plant Protection Institute; R. Pujol |