Class MASTIGOPHORA
Order EUGLENOIDINA
Family EUGLENIDAE
Euglena sp.
Experimental host.—Periplaneta americana, U.S.A. (Hegner, 1929): When fed to the insects in concentrated culture, Euglena could withstand conditions in the crop up to 5 hours and were passed into the stomach in a viable state up to 6 hours. However, the majority were killed in the crop within 2 hours and very few reached the stomach alive.
Order PROTOMONADINA
Family OIKOMONADIDAE
Oikomonas blattarum Tejera
Natural host.—Cockroach, Venezuela (Tejera, 1926).