Report on Encyrtidae associated with Mealybugs on Cacao in Trinidad, and on some other Species related thereto

Abstract

The taxonomy of a complex of parasites associated with mealy-bugs on cacao in Trinidad is dealt with. The descriptions of nine species new to science are given and species not new have been treated in comparable detail. Fresh taxonomic or other data have been given for some related species. The inclusion of an aberrant Thysanid species of biological importance necessitated a comparative study of characters that have been used within this group. In this connection, Thysanid parasites of T achinidae attacking moth larvae in sugar-cane were considered and found separable into three closely related species, two of which are described as new.