Oecanthus buxixu sp. nov. (Orthoptera: Grylloidea: Oecanthidae): A new species of tree cricket from Brazilian Amazon rainforest.

The Tree Crickets of the genus Oecanthus Serville, 1831 are distributed across tropical and temperate regions, where they can be found in all strata of vegetation. In this work, we describe a new species of tree cricket from the Brazilian Amazon rainforest, where only one species was known until the date of this publication. This new species differs from the other 79 species in this genus by the absence of marks on the scape and pedicel of the antennae, as well as by its calling song composed of 3 to 5 chirps/s, 6 to 20 pulses per chirp, and peak frequency 3 to 3.

The Spine Raptor-a new genus of predatory katydid (Orthoptera: Tettigoniidae: Meconematinae: Phlugidini) from the Brazilian Amazon Rainforest.

The Phlugidini tribe (Meconematinae: Tettigoniidae) currently comprises 10 genera and 64 species of small predatory katydids with Neotropical distribution. Herein, we describe the new genus Spinaraptor gen. nov.

A new cryptic species of Galiblatta Hebard, 1926 (Blaberidae: Epilamprinae) from the Brazilian Amazon Basin and redescription of Galiblatta williamsi Roth, 1968.

Galiblatta Hebard, 1926 is a genus of the Poroblattini (Blaberidae: Epilamprinae) comprising so far G. cribosa Hebard, 1926 (type species) and G. williamsi Roth, 1968, respectively from Guiana and Brazil.

New genus of Steirodontini Brunner von Wattenwyl, 1878 (Orthoptera: Tettigoniidae: Phaneropterinae) from the Brazilian Amazon Rainforest.

The tribe Steirodontini (Phaneropterinae: Tettigoniidae) currently comprises five genera and 56 species, with its distribution restricted to the Neotropical region. In Brazil, four genera and 20 species of this tribe are recorded, all with records restricted to the Brazilian Southeast and South regions. This fact is a strong indication that the Brazilian fauna of this group is underestimated.

New species of Tyrannoraptor Mendes, Oliveira, Chamorro-Rengifo & Rafael, 2018 (Orthoptera: Tettigoniidae: Meconematinae: Phlugidini) with asymmetrical jaws from the Brazilian Amazon Rainforest.

Tyrannoraptor Mendes, Oliveira, Chamorro-Rengifo & Rafael, 2018 (Tettigoniidae: Meconematinae: Phlugidini) is currently a monotypic genus. The type-species Tyrannoraptor arboreus (Nickle, 2003) is recorded to Peru (Loreto) and Brazil (Amazonas). In this work, we describe the second species of the genus, Tyrannoraptor venator sp.

The Austral Predator Katydid-new species of Megatympanon Piza, 1958 (Orthoptera: Tettigoniidae: Listroscelidinae: Terpandrini) from the Brazilian Atlantic Rainforest.

Megatympanon Piza, 1958 (Tettigoniidae: Listroscelidinae: Terpandrini) is presently a monotypic genus and the only Terpandrini occurring in South America. The type-species M. speculatum Piza, 1958 is recorded in the Atlantic Forest biome in southeastern Brazil.

The Blue Legged Predatory Katydid-a new species of Listroscelis Serville, 1883 (Orthoptera: Tettigoniidae: Listroscelidinae: Listroscelidini) from the Atlantic Rainforest.

The genus Listroscelis is part of Listroscelidini (Tettigoniidae: Listroscelidinae) and comprises 11 species of predatory katydids only known from Brazil. Currently, the group's greatest richness is recorded in the Atlantic Forest biome. In this work, the new species Listroscelis cyanotibiatus sp.

The Little Fog Dragona new genus of Mountain Lichen Katydid (Orthoptera: Tettigoniidae: Phaneropterinae: Dysoniini) from the Serra do Sol, Roraima, Brazil.

The Dysoniini tribe (Phaneropterinae: Tettigoniidae) currently comprises 15 genera and 85 species with a Neotropical distribution. The group is notable for its representatives possessing morphological adaptations to camouflage with lichens and fungi. In this work, the new genus Nebulodraculus gen.

The Bromeliad Blue Horn Katydida new genus of the Cone-headed Katydid (Orthoptera: Tettigoniidae: Conocephalinae: Copiphorini) from the Serra da Jibia, Bahia, Brazil.

The tribe Copiphorini (Conocephalinae: Tettigoniidae) currently comprises 58 genera and 442 species widely distributed across all continents, with the exception of Antarctica. In Brazil, 19 genera and 100 species are recorded. The tribe stands out within the Conocephalinae for including several genera with the fastigium-vertex expanded, forming horns and other elaborate structures.

New species of Quiva (Paraquiva) Cadena-Castaeda amp; Gorochov, 2013 (Orthoptera: Tettigoniidae: Phaneropterinae: Dysoniini) from Brazilian Amazon Rainforest.

The genus Quiva belongs to the tribe Dysoniini (Phaneropterinae: Tettigoniidae) and is divided into two subgenera and seven species: Quiva (Quiva) with six species and Quiva (Paraquiva) with only one species, Quiva (Paraquiva) angieae which currently only is known for the type locality (Leticia-Colombia). This work describes the new species Quiva (Paraquiva) obscura sp. nov.

New species of Tintiyakus Cadena-Castaeda (Orthoptera: Anostostomatidae: Lutosinae) from the Brazilian Mountain Amazon Rainforest.

Tintiyakus is a genus of Chevron Crickets and currently comprises three species with distributions in Colombia and Venezuela, restricted to Amazon rainforest environments between 200400 m altitude. In this work a new species Tintiyakus lari sp. nov.

Two new and rare genera of angle-winged katydids (Orthoptera: Tettigoniidae: Phaneropterinae: Microcentrini) from the Brazilian Amazon Rainforest.

Angle-winged katydids belong to the Microcentrini Brunner von Wattenwyl, 1878 (Phaneropterinae: Tettigoniidae). This tribe currently comprises 17 genera and 102 species with a Neotropical distribution. In this paper we described two new genera with two new species each: Capanema gen.

A new genus and three new species of Agraeciini (Orthoptera: Tettigoniidae: Conocephalinae) from the Brazilian Atlantic Forest, with comments on the function of some phallic components.

This contribution describes a new genus and three new species of Agraeciini from the Brazilian Atlantic Forest, Warimiri madiba gen. et sp. nov.

Redescription of emRaggophyllum/em Nickle, 1967 (Orthoptera: Tettigoniidae: Phaneropterinae) with description of a new species from Brazilian Amazon Rainforest and placement in Microcentrini Brunner von Wattenwyl, 1878.

Raggophyllum Nickle, 1967 is a monotypic genus, including Raggophylluym spinosum, and recorded in Peru and Bolivia. In this work, Raggophyllum is redescribed and assigned to the Microcentrini, based on the type species Raggophylluym spinosum. Raggophyllum rubrofemoratum sp.

Five new genera of angle-wing katydids (Orthoptera: Tettigoniidae: Phaneropterinae: Microcentrini) from the Amazon Rainforest.

Microcentrini Brunner von Wattenwyl, 1878 is within the subfamily Phaneropterinae and currently comprises 11 genera and 81 species with Neotropical distribution. In this paper, five new genera are described: Boroseiyla gen. nov.

Redescription of Acropsis Grant, 1958 (Orthoptera: Tettigoniidae: Phaneropterinae: Microcentrini) and description of new species from Brazilian and Colombian Amazon Rainforest.

Acropsis Grant, 1958 is a monotypic genus with records only for Peru (type locality). Acropsis is being redescribed, including the Acropsis tectiformis species and two new species: Acropsis solimoesensis sp. nov.

A new genus of chevron cricket (Orthoptera: Anostostomatidae: Lutosinae) from the Colombian and Venezuelan Amazon Rainforest.

Tintiyakus gen. nov., is described based on specimens from the Amazon region, including three species: Tintiyakus piaroa n.

Redescription of Polichnodes americana Giglio-Tos, 1898 (Orthoptera: Tettigoniidae) with a new record and habitat notes from Brazilian Amazon Rainforest.

In this work it was made the redescription of male of Polichnodes americana including new traits as internal genitalia and morphology of stridulatory files. Also it was recorded for the first time the distribution of this species to Brazil, in Amazonas, and notes on habitat.

The Little Harlequin Katydid-a new species of Paraxiphidium Redtenbacher, 1891 (Orthoptera: Tettigoniidae: Conocephalinae; Conocephalini) from the Amazonian Rainforest.

Paraxiphidium is a genus of flashy Neotropical katydids belonging to Conocephalini. Paraxiphidium iriodes sp. nov.

Systematics and biogeography of the genus Scaria Bolívar, 1887 (Orthoptera: Tetrigidae: Batrachideinae).

The Amazon rainforest is the world's most extensive tropical rainforest, holding a considerable ecological and taxonomic diversity. Speciation in this region arises from multiple factors, such as topography, climate fluctuations, oceanic transgression, vegetation and the delimitation of zones circumscribed by sub-basins within the greater Amazon basin. Different scenarios have been proposed to better understand the diversification of Amazonian taxa, whether by Pleistocene refugia or by areas of endemism.

The genus Bittacus Latreille (Insecta: Mecoptera) in Brazil: key to species, distribution maps, new synonym, and three new species.

The Brazilian species of Bittacus Latreille (Mecoptera: Bittacidae) are reviewed and one new synonym is proposed (Thyridates willmanni Collucci Amorin syn. n. of Bittacus diversinervis Souza Lopes Mangabeira).

Two new genera of predatory katydids (Orthoptera: Tettigoniidae: Meconematinae) from the Amazon rainforest.

Meconematinae comprise small predatory katydids. There are currently seven genera and 58 species recorded for the Neotropical region. Two new genera of Phlugidini are described from the Amazon region, Arboraptor gen.

New species and new behavioral data of Karny, 1907 (Orthoptera: Tettigoniidae: Meconematinae) from the Brazilian Amazonian Rainforest.

Phlugiola Karny, 1907 is a genus of small predatory katydids with six included species distributed in Brazil, Bolivia, Colombia, Peru and Suriname. In this paper two new Brazilian species are described, Phlugiola longipedes sp. nov.

Description of a new species of Walker, 1869 (Orthoptera: Anostostomatidae: Lutosinae) from the Brazilian Atlantic Forest, with biological and behavioral information.

Lutosa horribilis sp. nov., a new species of Anostostomatidae is described from a Brazilian Atlantic Forest environment.

A new genus of predatory katydids (Orthoptera: Tettigoniidae: Listroscelidinae) from the Amazonian Rainforest.

Most of the predatory katydids Listroscelidini species known were described from the Brazilian Atlantic Forest. Here a new genus and species from the Amazonian Rainforest is described. Based on its morphological characteristics, this new genus represents an intermediate form between two closely related genera, Listroscelis Serville and Monocerophora Walker.