Experimental vector.—Blatta orientalis, Italy? (Giordano, 1950).
* Trichuris trichiura (Linnaeus, 1771) Stiles, 1901
Natural vectors.—Blatta orientalis, Italian Somaliland (Mariani and Besta, 1936); U.S.S.R. (Sondak, 1935).
Blattella germanica, U.S.S.R. (Sondak, 1935).
Periplaneta americana, Gold Coast Colony (Macfie, 1922); Formosa (Morischita and Tsuchimochi, 1926).
Experimental vectors.—Periplaneta americana, Gold Coast Colony (Macfie, 1922); India (Chandler, 1926); Uruguay (Pérez Fontana, 1955).
Periplaneta americana, Periplaneta australasiae, and Neostylopyga rhombifolia, Formosa (Morischita and Tsuchimochi, 1926).
[XII. ARTHROPODA]
The classification follows Brues et al. (1954) with the following exceptions. The Acarina are arranged according to Dr. J. H. Camin (personal communication, 1955). Family Eupelmidae of the Hymenoptera follows the classification of Peck (1951).