The Miridae (Hemiptera: Heteroptera) are one of the most species rich families of insects, with about 11 100 described species. Mirinae is the largest subfamily and its endemism becomes evident at the tribal level and below. Mirines of the tribe Restheniini are found throughout America, with most of the diversity confined to the Neotropics. Prepops Reuter is the largest genus in Restheniini wi...

The Neotropical otter (Lontra longicaudis) is a medium-sized semiaquatic carnivore with a broad distribution in the Neotropical region. Despite being apparently common in many areas, it is one of the least known otters, and genetic studies on this species are scarce. Here, we have investigated its genetic diversity, population structure, and demographic history across a large portion of its geo...

The “Barcode of Life” Consortium is a worldwide initiative devoted to perform a molecular inventory of Earth’s biodiversity. The Cytochrome Oxidase c subunit I (COI) gene of the mitochondrial DNA (mtDNA) has been successfully used for identification of North American bird species. However, this technique has not been previously employed to Neotropical birds’ identification. Typical antbirds (Th...

The freshwater crabs of the Neotropics comprise 311 species in two families (Pseudothelphusidae and Trichodactylidae) and one or both of these families are found in all of the countries in the Neotropical region (except for Chile and some of the Caribbean islands). Colombia (102 species, 81% endemic) and Mexico (67 species, 95% endemic) are the biodiversity hotspots of freshwater crab species r...

The Neotropical histerid genus Ebonius Lewis, 1885 is revised. Characters are provided for the recognition of the genus and its species. All three species are illustrated and keyed and information about the collection methods is given. Ebonius can be recognized by the "U"-shaped carinal stria, sutural region of elytra concave, first abdominal sternum stria present anteriorly and laterally, and ...

Three new genera and species of Mymaridae from the Neotropical region are described: Megamymar waorani Huber, gen. sp. nov. ; Neopolynemoidea chilensis Porcepicus herison Their possible relationships discussed to place them in context among previously described Mymaridae.

Two new species of Exetastes Gravenhorst, 1829 from the Peruvian Andes are described and illustrated: E. andensis sp. nov. tullu Presently, 38 have been recorded in Neotropical region. Our discoveries first records genus Peru Andean

Anomala eucoma Bates, 1888 is redescribed and a lectotype from Guatemala is designated. Three new species from Costa Rica, A. flavacoma new species, A. megaparamera new species, and A. pseudoeucoma new species, are described, and a distribution map is given. The internal sac (endophallus) of the species covered is illustrated, and its use in separating closely related species in this region is ...