Galiblatta Hebard, 1926 is a genus of the Poroblattini (Blaberidae: Epilamprinae) comprising so far G. cribosa Hebard, 1926 (type species) and G. williamsi Roth, 1968, respectively from Guiana and Brazil. The latter species was described from the state of Amazonas, Manaus. We are describing the cryptic Galiblatta pipo sp. nov. that occurs in sympatry with G. williamsi, with a map with genus records. Furthermore, we provide images and redescribe G. williamsi.