The paper presents a description of the hitherto unknown larva of Drusus nigrescens Meyer-Dür, 1875. Information on the morphological and genetic identification of this species is given, and the most important diagnostic features are illustrated. Its systematic position within the genus Drusus is affirmed and some zoogeographical and ecological notes are added.

Systematics of the genus Itauara Müller, 1888 are reviewed. A generic diagnosis, illustrations, and descriptions are provided for males. The genus can be identified by several features of the male genitalia including an extremely reduced phallobase and a phallic apparatus that consists of a sclerotized dorsal sheath covering a very membranous ventral portion. A total 18 species are described as...

Three new species of Notidobiella Schmid (Insecta: Trichoptera) are described from South America: Notidobiella amazonianasp. n. (Brazil), Notidobiella brasilianasp. n. (Brazil), and Notidobiella ecuadorensissp. n. (Ecuador). In addition, the 3 previously described species in the genus, Notidobiella chacayana Schmid, Notidobiella inermis Flint, and Notidobiella parallelipipeda Schmid, all endemi...

Insects of the order Trichoptera (caddisflies) are represented in Baltic amber by 22 families and comprise about 2% of all inclusions (Wichard & Weitschat 1996). Among these, the genus Rhyacophila (Rhyacophilidae) is a rare taxon presented with six so far known fossil species (Rhyacophila kutscheri Mey, 1988; R. laminata Ulmer, 1912; R. liedtkei Wichard & Caspers, 1991; R. occulta Hagen, 1856; ...

New species and records of Chimarra Stephens (Trichoptera, Philopotamidae) from Central Amazonia, Brazil. Chimarra (Curgia) paucispina sp. nov., of the aurivittata group Flint, 1998 is described and illustrated from specimens collected in Amazonas State. The key to species of Chimarra (Curgia) Walker, 1860 presented by Flint was modified to include the new species. Chimarra (Chimarrita) chela B...

The Hydroptilidae constitute the most diverse and widespread family of Trichoptera in the world. About 90 species of microcaddisflies have been recorded from Brazil, but the northeastern region is one of the least-sampled. In this work we describe a new species of Metrichia from Pernambuco State. Furthermore, we present the first records of Flintiella andreae Angrisano 1995 and Oxyethira bettya...

Persistent organic pollutants (POPs) have been at the forefront of environmental contamination research even before their ban in 2001 Stockholm Convention. Their relation to different compartments environment (biotic and abiotic) has thoroughly investigated. This article aims identify whether benthos could represent a reliable indicator with POPs highlight its potential transfer role between ab...

Wolbachia is a genus of intracellular bacteria typically found within the reproductive systems of insects that manipulates those systems of their hosts. While current estimates of Wolbachia incidence suggest that it infects approximately half of all arthropod species, these estimates are based almost entirely on terrestrial insects. No systematic survey of Wolbachia in aquatic insects has been ...