The paper presents new faunistic data of 27 beetle species belonging to the Ptinidae family. Among presented species, 19 of them belong to deathwatch beetles and 8 of them to spider beetles. One species, Xyletinus pseudoblongulus GOTTW., is new to the Polish fauna.
A new genus and species of flightless spider beetle from southwestern Madagascar, is described. The most notable morphological features are lateral spines on the pronotum and elytral epiplura and a diverse array of setal vestiture. Characteristics differentiating this new genus and species from all others are discussed and illustrated and the probable biology hypothesized.