Abstract
The genus Mesostrix Mazur, 1994 was erected to include a single species, M. pentatoma Mazur, 1994. It was originally placed within the tribe Platysomatini (Mazur, 1994: 46) as occupying an intermediate position between Eblisia and Platysoma. Subsequently, Ôhara & Mazur (2002: 20; Figs. 10A–F, 11A–F) redescribed the genus, providing additional characters separating the genus from other members of the tribe and giving a detailed description and figures of external and internal morphology of the type species, M. pentatoma. Most recently Mazur & Ôhara, 2009: 247) placed Mesostrix in the “Platysoma-section” of the tribe Platysomatini, having a longitudinal carina on the mesocoxa such as that found in the genera of this section. Among these genera the outwardly projected anterior pronotal margin and the presence of two metaventral depressions are also distinctive for the genus.