“…Examples are polythene tapes (Williams & Obeng, 1962;Doby et al, 1967); polypropylene ropes (Fredeen & Spurr, 1978); ceramic tiles (Lewis & Bennett, 1974;Gersabeck & Merritt, 1979); cone-shaped traps (Johnson & Pengally, 1966;Benfield et al, 1974) and pieces of fabric (Tarshis, 1966). Examples are polythene tapes (Williams & Obeng, 1962;Doby et al, 1967); polypropylene ropes (Fredeen & Spurr, 1978); ceramic tiles (Lewis & Bennett, 1974;Gersabeck & Merritt, 1979); cone-shaped traps (Johnson & Pengally, 1966;Benfield et al, 1974) and pieces of fabric (Tarshis, 1966).…”