Changes in the genus Euplocania (Psocodea: Ptiloneuridae): invalidation of the species group Marginata and establishment of the species group Uariniensis, with description of two new species.

The recent examination of the morphology of the wings, hypandrium and phallosome, of Brazilian and Colombian species of Euplocania, initially assigned to the species group Marginata, suggested that the group was wrongly established and therefore, must be removed. As a consequence, the new species group Uariniensis is proposed to include E. atlantica Silva-Neto, E.

Three new species of Lachesilla in the rufa group (Psocodea: Psocomorpha: Lachesillidae) from the Sierra Tarahumara, Mexico.

Three species of Lachesilla, in species group rufa, from the Sierra Tarahumara, Chihuahua, Mexico, are here described and illustrated: L. byei n. sp.