Muelleritermes: A new termite genus with two species from the Brazilian Atlantic Forest (Isoptera: Termitidae: Nasutitermitinae).

We present the description of Muelleritermes, new genus, and two new species: M. fritzi, sp. n. and M. globiceps, sp. n. Both species were found only in the Atlantic Forest of southern Brazil. All castes are described and illustrated, and a distribution map is provided. These species seem to be closely related to the genera Velocitermes and Diversitermes, sharing traits such as the presence of three types of soldiers and workers and a short mixed segment. This genus differs from Velocitermes and Diversitermes in the presence of a few ommatids on soldier's head, behind the antennae. It also differs from Velocitermes in the lack of a constriction on the head of major soldiers, and from Diversitermes in the presence of short hairs on top of the soldier's head, instead of microscopic ones.

A taxonomic revision of the soil-feeding termite genus Anhangatermes (Isoptera: Termitidae: Nasutitermitinae).

The taxonomy of Anhangatermes Constantino 1990 is revised. Four new species are described: Anhangatermes anhanguera, sp. n., Anhangatermes eurycephalus, sp. n., Anhangatermes juruena, sp. n., and Anhangatermes pilosus, sp. n. The imago of Anhangatermes is described for the first time (A. pilosus). A key to the species of the genus based on soldiers and workers is provided. The diagnosis of the genus is updated to accommodate the new species. The geographic range of the genus is expanded to the Cerrado region of Central Brazil. The gizzard armature of the worker of Anhangatermes is described in detail for the first time.