The present study aims to identify the helminth fauna of Spheniscus magellanicus Foster, 1781 from themunicipality of Ilha Comprida, southern São Paulo State. A total of 28 individuals were analyzed,resulting in an identification of three helminth species: Contracaecum pelagicum Johnston &Mawson, 1942, Cardiocephaloides physalis Sudarikov, 1959 and Tetrabotrium lutzi Parona, 1901.Contracaecum pelagicum and C. physalis were core species, while T. lutzi was considered a satellitespecies. All individuals examined were infected with at least one species (overall prevalence = 100%).The host specimens were all juveniles and the infection may be associated with food items eaten duringmigration to the Brazilian Coast.

The tRNAleu-COX2 intergenic region of the mitochondrial DNA has been used for assessing diversity in honey bee (Apis mellifera L.) populations worldwide. However, differential mutation rates in different partitions of the mitogenome may produce incongruent results. In this study, we sequenced 123 mitogenomes of 7 subspecies from lineages A, M, and C. This allowed generating a comprehensive dataset to investigate the phylogenetic and phylogeographic congruence among the mitogenome, individual genes, and the tRNAleu-COX2 region. We showed that the diversity patterns inferred from the tRNAleu-COX2 marker are not fully paralleled by those obtained with the mitogenome and the individual genes; while the three lineages are supported by these, the African sub-lineages and the haplotypes are not. Thus, conclusions drawn from the tRNAleu-COX2 region need to be taken with caution and this marker m...