Primeiro registro de Seticornuta Morley (Hymenoptera, Ichneumonidae, Metopiinae) do Brasil e descrição de uma nova espécie.

A new species of Seticornuta from Brazil is described and illustrated, the frst record of this genus for the Brazilian fauna. This new species was found in a study that aimed to enhance knowledge of the Brazilian fauna of Metopiinae, analysing samples from the hydrographic basin of Rio Mogi Guaçu. A diagnosis, along with distribution information for Seticornuta species are provided

Phylogeny of the wasp subfamily Metopiinae and patterns of speciation in the Exochus albiceps species-group

Metopiinae is a moderately large subfamily with over 850 described species distributed in 28 genera. The validity of Metopiinae had been doubted as they were suggested to be a derived member of the Ctenopelmatinae; and four genera—Apolophus, Bremiella, Ischyrocnemus, and Lapton—were only tentatively placed within the subfamily. Thus, there have been some doubts regarding the monophyly of the subfamily as currently circumscribed, whether the subfamily renders others paraphyletic, what genera should be contained within Metopiinae, and how these genera are interrelated. The results presented here represent only a first step toward revising the systematics of metopiine wasps and creating a phylogenetically sound classification. The morphology-based phylogeny based on 101 terminal taxa (90 for the ingroup plus 11 outgroups) and 176 morphological characters, recovered Metopiinae as monophyletic, and sister to a clade formed by Tryphoninae, Mesochorinae, and Ctenopelmatinae. With respect to the four genera tentatively placed in Metopiinae, only Scolomus clustered well within the subfamily, while Bremiella, Ischyrocnemis, and Lapton were found as sister to the remaining metopiines, with their definitive placement remaining far from being resolved. Four main clades were recovered within the subfamily. The monophyly of most genera was recovered and with good support, and additional synapomorphies are proposed for several genera. However, in all the analyses Stethoncus was nested within Hypsicera; and the genus Forrestopius was not recovered as monophyletic, as Forrestopius larryi clustered within Leurus. Additionally, five new genera were found: Finisterra gen. nov., Huetzin gen. nov., Jirajara gen. nov., Wira gen. nov., and Yanesha gen. nov. The new genera inhabit high elevation regions of the Neotropical Region, areas that are poorly explored. Base on this phylogenetic analysis of the subfamily, the monophyly of Exochus albiceps species-group was demonstrated. The monophyly of the albiceps species-group was well supported by morphological characters but poorly supported by the gene 28S, the combined molecular (28S, ND1, and Wg), and the combined molecular and morphological analyses. In addition to E. albiceps and E. tegularis, three species are newly assigned—E. ablatus Gauld & Sithole, 2002, E. izbus Gauld & Sithole, 2002, and E. jacintus Gauld & Sithole, 2002—and another six species newly described from the Neotropical region. In order to investigate the spatial variation and niche requirements of the albiceps species-group, a climate-based modelling of species’ niches was employed to estimate the level of niche overlap between species within the E. albiceps species-group, seeking to elucidate the relationship between elevational range and niche breadth. Segregation in the environmental space was found between species inhabiting the lowlands and the ones inhabiting montane regions. There is niche partitioning among the species that inhabit in montane regions while the lowland species occupied similar ecological space. The species show to have a narrow physiological thermal tolerance and are specialized for life at specific elevations

Contributions to the taxonomy of the Brazilian Leurus Townes, 1946 (Hymenoptera: Ichneumonidae, Metopiinae)

Leurus Townes, 1946 is a small genus of Metopiinae (Hymenoptera: Ichneumonidae), consisting of 13 described species distributed in the Neotropics and the Nearctic region. The present work aims to contribute to the taxonomic knowledge of Leurus in Brazil. A total of 109 specimens were identified and 15 literature records were analyzed. The genus geographical occurrence was evaluated according to data obtained from the literature and labels of analyzed specimens. Five species of Leurus were identified for the Brazilian fauna: L. angustignathus, L. caeruliventris, L. discus, L. gracius and L. nostrus. New municipality records of occurrence were made for L. angustignathus in the state of São Paulo, L. caeruliventris in the states of Bahia, Distrito Federal, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Piauí and Rondônia; for, L. discus in the state of Alagoas and São Paulo, and L. gracius in the state of Minas Gerais, Rio de Janeiro, and São Paulo. Females of L. angustignathus and L. gracius were described for the first time in the present study. The genitalia of males of L. caeruliventris, L. discus and L. gracius were described and illustrated for the first time

First record of Seticornuta Morley (Hymenoptera, Ichneumonidae, Metopiinae) from Brazil and description of a new species

A new species of Seticornuta from Brazil is described and illustrated, the first record of this genus for the Brazilian fauna. This new species was found in a study that aimed to enhance knowledge of the Brazilian fauna of Metopiinae, analysing samples from the hydrographic basin of Rio Mogi Guaçu. A diagnosis, along with distribution information for Seticornuta species are provided

Primeiro registro de Seticornuta Morley (Hymenoptera, Ichneumonidae, Metopiinae) do Brasil e descrição de uma nova espécie.

A new species of Seticornuta from Brazil is described and illustrated, the frst record of this genus for the Brazilian fauna. This new species was found in a study that aimed to enhance knowledge of the Brazilian fauna of Metopiinae, analysing samples from the hydrographic basin of Rio Mogi Guaçu. A diagnosis, along with distribution information for Seticornuta species are provided.201

First record of Seticornuta Morley (Hymenoptera, Ichneumonidae, Metopiinae) from Brazil and description of a new species

A new species of Seticornuta from Brazil is described and illustrated, the first record of this genus for the Brazilian fauna. This new species was found in a study that aimed to enhance knowledge of the Brazilian fauna of Metopiinae, analysing samples from the hydrographic basin of Rio Mogi Guaçu. A diagnosis, along with distribution information for Seticornuta species are provided

Checklist of South Korean Metopiinae Förster, 1869 (Hymenoptera, Ichneumonidae) with new South Korean species and a note on Seticornuta koreana

The subfamily Metopiinae (Hymenoptera: Ichneumonidae) was represented in South Korea as 96 species belonging to 13 genera. In this study, six additional species belonging to the genus Triclistus are recorded for the first time from South Korea. A checklist of South Korean Metopiinae and a note on Seticornuta koreana are provided

Darwin wasps of the genus<I> Seticornuta</I> Morley, 1913 (Ichneumonidae: Metopiinae) in the Neotropical region, with a key to species

The genus Seticornuta Morley, 1913 currently comprises nine described species; here, nine new species are described: S. anchanchu sp. nov., S. carinata sp. nov., S. cuckoo sp. nov., S. curupira sp. nov., S. flava sp. nov., S. muqui sp. nov., S. nigroflava sp. nov., S. quilmes sp. nov., and S. rufa sp. nov. The genus is redescribed to encompass the features found in Neotropical species and distinctions between the species in the New World and Old World are presented. The genus is recorded for the first time for Argentina, Bolivia, Ecuador, Guatemala and Peru

Darwin wasps of the genus Seticornuta Morley, 1913 (Ichneumonidae: Metopiinae) in the Neotropical region, with a key to species

The genus Seticornuta Morley, 1913 currently comprises nine described species; here, nine new species are described: S. anchanchu sp. nov., S. carinata sp. nov., S. cuckoo sp. nov., S. curupira sp. nov., S. flava sp. nov., S. muqui sp. nov., S. nigroflava sp. nov., S. quilmes sp. nov., and S. rufa sp. nov. The genus is redescribed to encompass the features found in Neotropical species and distinctions between the species in the New World and Old World are presented. The genus is recorded for the first time for Argentina, Bolivia, Ecuador, Guatemala and Peru