LIFE TABLE CHARECTRISTICS OF RHYNOCORIS FUSCIPES FABRICIUS IN RELATION TO SEX RATIOSK. Sahayaraj and P. SelvarajAbstract Rhynocoris fuscipes'is an important reduviid predator predating upon more than 42 insect pests. In this study we evaluated the suitability of sex ratios (4:1, 2:1 , 3:2, I:1, 2:3 and 1:2 female : male) for the mass production of R. fuscipes by life table analysis.The gross reproductive rate, orbitrary value of innate capacity for increase and weekly multiplication were maximum in 3:2 sex ratio. This category also had minimum precise generation(75.6 i days) and doubling time (13.10 days) respectively.The present findings suggested that 3 female and 2 male combination of adults could be maintained at the time of mass rearing of this predator.
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