Thermal Melanism in <i>Pachnoda iskuulka</i> (Coleoptera: Scarabaeidae: Cetoniinae).

ABSTRACT: Thermal polymorphism, usually represented by thermal melanism (darker coloration in cooler habitats), is a well-known phenomenon in animals. In Cetoniinae, several species in captivity tend to become darker after several generations of breeding, which is probably caused by a lower temperature than is typical for their native habitats. Pachnoda iskuulka is a beetle species occurring in Somaliland. This species is easy to breed in captivity, and it is colorful and variable in the proportions of yellow, red, and black coloration. We kept this species from the first instar larva to the adult stage at three different temperatures. Elytra and pronotum of the adults were photographed, and proportions of the three main colors were measured. The proportion of black coloration significantly i

SUBMITTER: Bogusch P 

PROVIDER: S-EPMC11765898 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature