response to other visual and physical parameters during pre-oviposition stage and oviposition response to certain combination of factors IDOMAL:0002334 IDOMAL:0002334 Pairs of factors to which the responses were compared and contrasted when exposed singly and in combination were: (i)type of surface-open water or moistened filter paper. (ii)Surface texture-rough or smooth, moistened filter paper, affecting olfactory receptors. (iii)Smell-presence or absence of the odour of horse-dung suspension, affecting olfactory receptors. (iv)Salinity-distilled water or 0,086M NaCl, affecting contact chemoreceptors. (v)Lightness- of grey or black filter paper-affecting visual receptors. The responses of gravid females to particular oviposition-site characteristics might change when experienced simultaneously with other characteristics. idomal_namespace