Levantamento da ordem heteroptera( gerromorpha e nepomorpha) do laboratório de entomologia aquática leaq

Abstract

Heteroptera is a group of aquatic insects considered predators, found in all environments ,. This order has aquatic individuals represented by the infra-order Nepomorpha, and semiaquatic individuals represented by the infra-order Gerromorpha. Heteropterans occur on all continents, except Antarctica, and are more numerous in the Tropical region, although there are species that are distinctly well adapted to the cold. The infra-order Gerromorpha, live on the surface of the water, and can be found on floating plants, stones, hygropetric environments or on the margins of aquatic environments. Biological Collections can be considered as biological archives that lend themselves to teaching and research, and have importance as a record of the biological diversity of a given area, offering different types of technical-scientific information, accumulating years in research and development projects. This work aims to carry out a taxonomic survey of the order Heteroptera (Gerromorpha and Nepomorpha) from the collection of the Laboratory of Aquatic Entomology - LEAq. A taxonomic survey was carried out of the Heteroptera infra-orders present at the Laboratory of Aquatic Entomology (LEAq), at the Center for Higher Studies in Caxias, State University of Maranhão - UEMA. 736 specimens belonging to the Gerromorpha and Nepomorpha infra-orders were examined, distributed in six families and 11 genera. Gerridae was the most representative family with 57% of the species listed, with five genera and 424 specimens. Thus, studies with a focus on taxonomic inventory are relevant to know the biodiversity of aquatic insects in the state of Maranhão, especially in the municipality of Caxias, where areas of natural vegetation have undergone major anthropic actions.