@article {192, title = {A new minute riffle beetle (Coleoptera: Elmidae: Pagelmis) from the Brazilian Amazon}, journal = {Zootaxa}, volume = {5061}, year = {2021}, pages = {369{\textendash}376}, abstract = {

The monotypic genus Pagelmis Spangler, 1981 was described from six thousand specimens of Pagelmis amazonica Spangler, 1981 collected with blacklight traps in Ecuador. For many years the known distribution of this genus was restricted to its type-locality, and recently it was recorded in Venezuela, Suriname and Brazil (Roraima State). Now, 40 years after the description of the genus, we describe the second Pagelmis species, based on male and female collected in the Amazon forest (Amazonas State, Brazil).With the description of the second species in the genus we provide an emended diagnosis of Pagelmis. Since adults of this genus were previously collected only in light traps, no habitat information was known. We collected adults of the new species in the first- and second-order streams with black, acidic water and sandy streambeds. The main substrates available in these streams were leaves and roots of riparian vegetation.

}, keywords = {aquatic insects, Elminae, emended diagnosis, Neotropical, taxonomy}, doi = {https://doi.org/10.11646/zootaxa.5061.2.9}, author = {T.T.S. Polizei and N. Hamada} } @article {157, title = {Ictelmis, a new riffle beetle genus from Ecuador (Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {4695}, year = {2019}, pages = {483{\textendash}491}, abstract = {

A new minute riffle beetle genus Ictelmis gen. nov. and the type species Ictelmis martae sp. nov. are described from Ecuador. The description is supported by characteristic morphological features and DNA barcoding data, drawings and habitus photographs are provided. Based on molecular data and morphology it is suggested that Ictelmis is closely related with Onychelmis Hinton, and Notelmis Hinton.

}, keywords = {DNA barcoding, Elminae, Ictelmis, South America}, doi = {https://doi.org/10.11646/zootaxa.4695.5.5}, author = {F. {\v C}iampor Jr and M. Linsk{\'y} and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a}} } @article {66, title = {Two new species of Austrolimnius Carter \& Zeck (Insecta: Coleoptera: Elmidae) from Southeastern Brazil}, journal = {Zootaxa}, volume = {3389}, year = {2012}, pages = {14-24}, abstract = {

The genus Austrolimnius Carter \& Zeck has its greatest known diversity in Oceania, but its fauna in the Americas is poorly known. In this paper, two new species\—Austrolimnius uncatus sp. nov. and A. bocainensis sp. nov.\—are described and illustrated based on adult specimens collected at Serra da Bocaina National Park, S\ão Jos\é do Barreiro Municipality, S\ão Paulo State, and Nova Friburgo Municipality, Rio de Janeiro State, Brazil. Austrolimnius uncatus sp. nov. is characterized by the long setae on the mesotarsus, the medial expansion of the hind tibiae, and the hook-like shape of the male genitalia. Austrolimnius bocainensis sp. nov. can be recognized by the absence of setae on the mid-tarsus, the cylindrical hind tibiae, and the slightly curved genitalia with few setae. A pictorial key for the Brazilian species of the genus is given. New records of Brazilian species of the genus are reported.

}, keywords = {aquatic insects, Atlantic forest, Elminae, taxonomy}, author = {G.S. Miranda and B.H.L. Sampaio and M.I.S. Passos} }