Grillotopos (Orthoptera: Gryllotalpidae) en la isla caribeña de Granada

Resumen

Scapteriscus didactylus (Latreille) and Neocurtilla hexadactyla (Perty) are the two mole cricket species known from Grenada, Lesser Antilles. Damage to turf and to vegetable seedlings was found in June 1990 to be caused by S. didactylus. However, year-round ultraviolet light trap samples yielded only one specimen of S. didactylus among 186 specimens of N. hexadactyla. The proportions of the two species captured in light traps bear no relationship to their relative importance to agriculture and horticulture. Almost all (175) of the light-trapped N. hexadactyla were females, and all but one were trapped in September-April; this, and the similar ovarian condition of dissected females suggests that the reproductive cycle of this species has an annual rhythm in Grenada, but that the reproductive period is extensive. The reproductive cycle of S. didactylus in Grenada is not obvious.