Description of the first and second female and male instars of white mango scale Aulacaspis tubercularis Newstead (Coccoidea: Diaspididae)

The first and second female and male instars of the white mango scale, Aulacaspis tubercularis Newstead (Coccoidea: Diaspididae), are described and illustrated. Morphological differences between the first and second instars of this species are compared and discussed. A key to differentiate between the first- and second-instars, key to sexual dimorphism in the first nymphal instars and key to sexual dimorphism in the second nymphal instars, were constructed.