The larva of the Neotropical caddisfly genus Centromacronema Ulmer, 1905 (Trichoptera: Hydropsychidae)

The Neotropical caddisfly genus Centromacronema (Hydropsychidae: Macronematinae) contains 17 species. Many of the species are taxonomically poorly known and their biology and immature stages are also very incompletely known. Here, we provide the first complete description of the larval stages of the genus, based on those of Centromacronema obscurum (Ulmer, 1905) collected from a stream flowing through a small fragment of the Atlantic Forest biomes of southeastern Brazil.