2. Eretes sticticus (Linnaeus) .

Dytiscus sticticus Linnaeus, Syst. Nat. 1 (2): 666, 1767.

Eretes sticticus (Linnaeus) Schultze, Philip. Jour. Sci. 11, D: 15, 1916.

Piti, May 23, Usinger; Agana Swamp, June 26, Usinger; five specimens. (Determined by L. L. Buchanan, U. S. National Museum.)

E. sticticus is a widely distributed species.