New cytogenetic data for three species of Pentatomidae (Heteroptera): (Dallas, 1851), (Palisot de Beauvois, 1805), and (Dallas, 1851).

In this paper, we present new cytogenetic data for three species of the family Pentatomidae: (Dallas, 1851), (Palisot de Beauvois, 1805), and (Dallas, 1851). All studied species presented holocentric chromosomes and inverted meiosis for the sex chromosomes. has 2 = 12 (10A + XY); showed 2 = 14 (12A + XY); and showed 2 = 14 (12A + XY). C-banding was performed for the first time in these species and revealed terminal and interstitial heterochromatic regions on the autosomes; DAPI/CMA staining showed different fluorescent patterns. In all species, fluorescence hybridization (FISH) with 18S rDNA probe identified signals on one autosomal bivalent, this being the first report of FISH application in the species and . The results obtained add to those already existing in the literature, enabling a better understanding of the meiotic behavior of these insects.