Experimental hosts.—Blatta orientalis, Blattella germanica, Leucophaea maderae, France (Brumpt, 1931).
* Protospirura columbiana Cram, 1926
Experimental host.—Blattella germanica, U.S.A. (Cram, 1926).
* Protospirura muricola Geodoelst, 1916
Natural host.—Leucophaea maderae, Panama (Foster and Johnson, 1938, 1939).
* Seurocyrnea colini (Cram, 1927) Cram, 1931
Experimental host.—Blattella germanica, U.S.A. (Cram, 1931, 1931a, 1933a).
* Spirura gastrophila (Müller, 1894) Seurat, 1913
Natural hosts.—Blatta orientalis, Europe? (Deslongchamps, 1824, in Seurat, 1911); Italy (Grassi, 1888); Algeria (Seurat, 1916).