The Biotic Associations of Cockroaches

by Louis M. Roth; Edwin R. Willis

Experimental vectors.—Cockroaches, U.S.A. (Longfellow, 1913).

* Streptococcus sp. (pyogenic group)

Experimental vectors.—Blatta orientalis, Germany (Jettmar, 1935).

* Streptococcus sp. (viridans group)

Experimental vectors.—Blatta orientalis, Germany (Jettmar, 1935).

* Streptococcus spp.

Natural vectors.—Blatta orientalis, Germany (Jettmar, 1935).

Blattella germanica, Germany (Jettmar, 1935); U.S.A. (Janssen and Wedberg, 1952).

Cockroaches, U.S.A. (Longfellow, 1913).

Experimental vectors.—Blatta orientalis, Italy (Cao, 1898).