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Molecular phylogeny of the pond skaters (Gerrinae), discussion of the fossil record and a checklist of species assigned to the subfamily (Hemiptera: Heteroptera: Gerridae)

The phylogenetic reconstruction shows that Gerrinae is not monophyletic, since a clade comprising Gerris, Aquarius, Limnoporus, Tachygerris, Eurygerris and Gigantometra is more closely related to representatives of the subfamily Eotrechinae than to aClade comprising Limnogonus, Neogerris, Limmometra, Tenagogerris and Tenagogonus.
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Diversity in Morphology and Locomotory Behavior Is Associated with Niche Expansion in the Semi-aquatic Bugs

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Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil

Based on published information of about 200 references, 479 species of Gerromorpha and Nepomorpha have been recorded from Brazil and compiled here for the first time. Of these, 105 belong to the…
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Aquatic Insects from the Caatinga: checklists and diversity assessments of Ubajara (Ceará State) and Sete Cidades (Piauí State) National Parks, Northeastern Brazil

Rarefaction curves based on quantitative light trap samples suggest a much higher expected species richness of aquatic insects at Sete Cidades than at Ubajara National Park, possibly due to structural differences of water bodies sampled in each park.
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New species and new records of Veliidae from Espírito Santo State and adjacent Minas Gerais State, Brazil, with notes on nomenclature (Insecta: Heteroptera: Gerromorpha)

A review of the Veliidae occurring in Espírito Santo State, Brazil, is presented. The following new taxa are described: Oiovelia brasiliensis sp. nov., Paravelia capixaba sp. nov., Rhagovelia…
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Veliidae (Insecta, Heteroptera, Gerromorpha) from southeastern Brazil: three new species from Rio de Janeiro State, a new species group for Neotropical Rhagovelia Mayr, and notes on distribution and…

Corrections are presented for the previously published distributions of Rhagovelia aiuruoca, R.Lucida, macta, and R. triangula.
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Molecular phylogeny of the pond treaders (Insecta: Hemiptera: Heteroptera: Mesoveliidae), discussion of the fossil record and a checklist of species assigned to the family

The phylogenetic relationships among selected species and genera of Mesoveliidae were investigated in a parsimony analysis of 2858 bp of DNA sequence data from the genes encoding COI + II, 16S rRNA and 28S r RNA, supporting earlier ideas of species-complexes in these two clades.
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Identification key to the Gerridae (Insecta: Heteroptera: Gerromorpha) from the Amazon River floodplain, Brazil, with new records for the Brazilian Amazon

The main features used in the identification key and diagnoses are: body and leg segments proportions, coloration patterns, presence and distribution of setae, and modifications of the apical abdominal segments and external genitalia of the male.
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Taxonomy and distribution of aquatic and semiaquatic Heteroptera (Insecta) from Cuba.

A survey of aquatic and semiaquatic Heteroptera from Cuba is provided based on literature reports and field collections, with general data on species geographical distribution given, along with altitude and collection season.
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New distributional data concerning some Gerromorpha (Insecta: Hemiptera: Heteroptera) from Brazil

Distributional information is provided for 51 Gerromorpha species from Brazil, including first species records from the states of Alagoas, Paraiba, and Sergipe, and additional new records and distributional information are provided.
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