Biology of the immature stages of Strymon crambusa (Lycaenidae, Theclinae) on Oxalidaceae

ABSTRACT We document the biology and morphology of the egg, caterpillar, and pupa of Strymon crambusa (Hewitson, 1874), a Neotropical Eumaeini. In the Cerrado, the caterpillar feeds on the inflorescences and leaves of Oxalis L. S. crambusa has four larval instars, all of which are illustrated. The density of caterpillars on plants is higher than that recorded for leaf-feeding caterpillars and other flower-feeding Eumaeini, which suggests that the species is a specialist on Oxalidaceae in the Cerrado.

Fitoplancton en el invierno 1999 en un área seleccionada (7°-9°S). Crucero BIC Jose Olaya Balandra 9908-09

Se realiza una caracterización cualitativa y cuantitativa del fitoplancton en el área comprendida entre Pimentel y Chimbote

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