Protomagalhaesia serpentula (de Magalhães)
Synonymy.—Gregarina serpentula [Pinto, 1918a, 1919; Semans, 1943].
Natural host.—Periplaneta americana, Brazil (Magalhães, 1900): In the coelom and alimentary canal. The host of this parasite (fig. 2, K) was incorrectly cited as Blatta orientalis by Watson (1916).