This insect has been known in Grenada since 1898, and has been considered a pest of cacao by planters and others. At the present time thrips probably occurs in all parts of Grenada; at least, I found it or saw the results of its presence in all parts of the island which I visited, and I think I might say in every field. It was, however, only in certain fields, and often in small areas in those fields, that planters considered that damage had resulted. The remarkable thing about the occurrence of thrips is that it appears year after year on the same areas, even on the same trees, though sometimes spreading a little; but a thrips area one year is liable, or certain, to be athrips area every year.