We describe and illustrate two new species of Atanatolica from Brazil and Peru, representing the first record of the genus from Peru and the first record of the genus from Ceará state, Brazil. Atanatolica nordestina sp. nov. is recognized by short inferior appendages, with their basal portions subquadrangular, in ventral view; and by tergum X without the typical digitate apical processes, but w...

BACKGROUND The caddisfly genus Oecetis currently contains 534 valid species. Its larval stages are found in freshwaters around the world. The adults can be distinguished from other Leptoceridae by the unbranched forewing M vein and the exceptionally long maxillary palps. In the Neotropical region, 55 species of Oecetis have been recorded and most of them can be placed in one of the six species ...