When,during ontogeny,waxes in the blowfly (Calliphoridae) cuticle can act as phylogenetic markers

Cuticular compounds of three species of blowfly, Calliphora vomitoria (Linnaeus), Calliphora vicina (Robineau-Desvoidy) and Protophormia terraenovae (Robineau-Desvoidy), were analysed during ontogeny (eggs to 8-day-old adults) by gas chromatography. Discrimination among species is mainly due to quantitative rather than qualitative variations. Two different analytical approaches were used to judge if the cuticular hydrocarbons might be of interest as phylogenetic markers. Both methods, classical discriminant analysis and an original distance calculation method, led us to assume that the best phylogenetic congruence between cuticular compound profiles and both morphological and molecular phylogenies were found for young adult females.