C. B. Williams. 1922. A froghopper damaging cacao in Panama. Bulletin of Entomological Research 13 (3): 271-275.

Abstract: In the course of a search for parasites of Cercopidae in Central America, made on behalf of the Government of Trinidad in 1916 and 1917, I came across a froghopper of the genus Clastoptera destroying the flowers of cacao in various localities in Panama and just over the border in Costa Rica.

Keywords: froghopper injury to cacao.