Calyptommatus sinebrachiatus Rodrigues, 1991

Figs 5.1 and 14

Type locality.

Santo Inácio, state of Bahia, Brazil.

Distribution.

Caatinga endemic species. It is registered in the states of Bahia and Piauí . It shows restricted distribution in the Caatinga and occurs along two ecoregions (Table 1; Appendix S3). Distributed in medium to high elevation areas (405-896 m a.s.l.), with annual mean temperature 22 to 26°C, and average annual rainfall between 622 and 831 mm.

Ecological notes.

Fossorial and nocturnal (Rodrigues 1991a, Rocha and Rodrigues 2005, Siedchlag et al. 2010). It is associated with sandy soil patches along the Caatinga (Rodrigues 1991a). Diet based mainly on arthropods, being Tenebrionidae the most representative item (Rodrigues 1991a). Oviparous, the female usually lays two eggs at a time (Rodrigues 1991a).