Citrus thrips
last 4-6 days. The larva will move towards the shady area of the tree to pupate, if a suitable site is not found, the larva will drop to the ground to pupate [...] most often in narrow crevices created by folds in leaves or under the calyx of a fruit due to their thigmotactic behaviour. Damage around the calyx appears [...] brown when exposed to the sun later in the season. Severe scarring of fruit can occur up to 13 weeks after petal fall, after which the damage appears as