Additions to the taxonomy of the armadillo ants (Hymenoptera, Formicidae, Tatuidris)

摘要

The taxonomy of the rare ant genus Tatuidris is revised by studying morphological variability among 118 specimens from 52 collection events in 11 countries, and sequences of Cytochrome Oxidase 1 (COl 'DNA barcodes') of 28 specimens from 13 localitiesin 6 countries. Tatuidris are cryptic ants that inhabit the leaf litter of Neotropical forests from Mexico to French Guiana, central Brazil, and Peru. Based on the extent of the morphological variability encountered throughout this broad geographic range, T kapasi is relegated to junior synonymy under T. tatusia. Analysis of barcodes indicated a pattern of genetic isolation by distance, suggesting the presence of a single species undergoing allopatric differentiation. The genus Tatuidris, thus, remainsmonotypic. Male and female reproductive castes are described for the first time.