Abstract
Abstract The coconut moth, Atheloca subrufella, is responsible for most of the flower and fruit shedding in coconut cropping systems. Despite this, little is known with regard to its biology and behavior. In order to understand its biology, the duration and viability of the egg, larval, and pupal stages, number of instars, pupal weight of males and females, sex ratio, adult longevity, and fecundity were determined. In the mating behavior study, observations included mating time and duration. Duration and viability of the egg, larval, and pupal stages were 3.0 and 93.0, 14.3 and 85.0, and 11.2 d and 91.0%, respectively, totaling 28.5 d (egg-adult) with 72.0% viability. There were four instars, with head capsule means of 0.27, 0.45, 0.80, and 1.33 mm for the 1st, 2nd, 3rd, and 4th instars, respectively. The sex ratio was 0.55, and the mean pupal weight was 22.2 mg for males and 25.2 mg for females. The pre-oviposition, oviposition, and post-oviposition periods averaged 2.4, 7.5, and 5.5 d, respectively. The...
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