South America - Latest works
1618 research works with geographic metadata for South America (Continent).
1618 works
Showing 751 to 800 of 1618 works
A new species of Halicyclops (Copepoda, Cyclopoida, Cyclopidae) from a lagoon system of the Caribbean coast of Colombia
Plankton samples obtained from the lagoon system Laguna Navío Quebrado, in northern Colombia, yielded male and female specimens of an undescribed cyclopoid copepod of the genus Ha…
Inferring population connectivity across the range of distribution of the stiletto shrimp Artemesia longinaris Spence …
Artemesia longinaris is a marine shrimp endemic to the southwestern Atlantic and distributed from Atafona, Rio de Janeiro (Brazil) to Rawson, Chubut (Argentina). In recent years, …
Morphological variation of freshwater crabs Zilchiopsis collastinensis and Trichodactylus borellianus (Decapoda, Trich…
Measures of hydrologic connectivity have been used extensively to describe spatial connections in riverine landscapes. Hydrologic fluctuations constitute an important macrofactor …
Relative growth and morphological sexual maturity size of the freshwater crab Trichodactylus borellianus (Crustacea, De…
The relative growth of a number of morphological dimensions of the South American freshwater crab Trichodactylus borellianus (Trichodactylidae) were compared and related to sexual…
Molecular and morphological differentiation between two Miocene-divergent lineages of Amazonian shrimps, with the descr…
Palaemon carteri (Gordon, 1935) and P. ivonicus (Holthuis, 1950) are morphologically similar species of South American freshwater shrimps. Past studies have questioned the taxonom…
A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colomb…
Hemibrycon sanjuanensis, new species, is described from the upper San Juan River drainage, Pacific versant, Colombia. It is distinguished from H. boquiae, H. brevispini, H. cairoe…
The first sexual associations in the genus Darditilla Casal, 1965 (Hymenoptera, Mutillidae)
New sex associations are proposed for four species of Darditilla: D. amabilis (Gerstaecker, 1874); D. bejaranoi Casal, 1968; D. debilis (Gerstaecker, 1874); and D. felina (Burmeis…
Description of two new Ecuadorian Zilchistrophia Weyrauch, 1960, with the clarification of the systematic position of t…
Two new species of the genus Zilchistrophia Weyrauch, 1960 are described from Eastern Ecuadorian rain forest: Zilchistrophia hilaryae sp. n. and Z. shiwiarorum sp. n. These two ne…
The Stenopodainae (Hemiptera, Heteroptera) of Argentina
In Argentina, 10 genera and 33 species of Stenopodainae (Hemiptera: Reduviidae) have been recorded. Diagnoses of the genera, subgenera and species are given, and an illustrated ke…
Amphibians of Serra Bonita, southern Bahia: a new hotpoint within Brazil’s Atlantic Forest hotspot
We studied the amphibian community of the Private Reserve of Natural Heritage (RPPN) Serra Bonita, an area of 20 km2 with steep altitudinal gradients (200–950 m a.s.l.) located in…
Taxonomic guide and historical review of starfishes in northeastern Brazil (Echinodermata, Asteroidea)
Presently more than 1900 species of sea stars are recognized, of which 77 are recorded for the coast of Brazil. Although the first starfish record in Brazil was published 363 year…
Bumba, a replacement name for Maraca Pérez-Miles, 2005 and Bumba lennoni, a new tarantula species from western Amazonia…
We propose the name Bumba as a new name for Maraca, preoccupied by Maraca Hebard, 1926 (Orthoptera). We describe and illustrate Bumba lennoni, a new theraphosid species from Caxiu…
Revision of the genus Pseudapanteles (Hymenoptera, Braconidae, Microgastrinae), with emphasis on the species in Area de…
Pseudapanteles is a moderately diverse genus of Microgastrinae parasitoid wasps (Hymenoptera: Braconidae), endemic to the New World and with the vast majority of its species (incl…
Longivena, a new robber-fly genus from Brazil (Diptera, Asilidae, Asilinae)
Longivena gen. n. and five new species are described and illustrated from caatinga and cerrado habitats from Brazil: Longivena digitata sp. n., type–species (Maranhão, Bahia, Mina…
New records of spider wasps (Hymenoptera, Pompilidae) from Colombia
New records of genera and species of spider wasps (Hymenoptera: Pompilidae) from Colombia are provided. Agenioideus, Cryptocheilus, Evagetes, Mystacagenia, and Xerochares are newl…
Cryptalyra (Hymenoptera, Megalyridae) from Maranhão, Brazil: three new species discovered after a large collecting effo…
Cryptalyra is a small genus of megalyrid wasps with three described species confined to South America. Our main goal in this work is to record an increase in the known diversity, …
A new genus of Strepsiptera, Rozenia gen. n. (Stylopidae), a parasite of bee genera Acamptopoeum and Calliopsis (Andren…
A new Strepsiptera genus from South America is described, Rozenia gen. n., with three new species: R. calliopsidis sp. n. (type species), R. peruana sp. n. and R. platicephala sp.…
A new genus and species for the first recorded cave-dwelling Cavernicola (Platyhelminthes) from South America
Species diversity of Brazilian cave fauna has been seriously underestimated. A karst area located in Felipe Guerra, northeastern Brazil, which is a hotspot of subterranean diversi…
Neoplecostomus doceensis: a new loricariid species (Teleostei, Siluriformes) from the rio Doce basin and comments about…
A new species of Neoplecostomus is described from the rio Doce basin representing the first species of this genus in the basin. The new species is distinguished from its congeners…
A shore-based preliminary survey of marine ribbon worms (Nemertea) from the Caribbean coast of Colombia
A checklist of benthic ribbon worm species from the Caribbean coast of Colombia is presented, including synonyms, distributions, a photographic record, and the main morphologic ch…
The ant genus Carebara Westwood (Hymenoptera, Formicidae): synonymisation of Pheidologeton Mayr under Carebara, establi…
In this paper the genus Pheidologeton Mayr, 1862 is synonymized under Carebara Westwood, 1840 and the Carebara polita group is established and revised. This species group currentl…
The genus Cephaloleia Chevrolat, 1836 (Coleoptera, Chrysomelidae, Cassidinae)
The species of the Neotropical genus Cephaloleia Chevrolat, 1836 are revised. We present a key to the known larvae of Cephaloleia (8 species), a key to the 95 species known to occ…
The description of a new species of the Neotropical land crab genus Gecarcinus Leach, 1814 (Crustacea, Decapoda, Brachy…
In this contribution a new species of the land crab genus Gecarcinus Leach, 1814, from the Neotropical Pacific coast of South America is described and illustrated. In addition to …
Description of the male of Tityus kuryi Lourenço, 1997 and notes about males of Tityus stigmurus (Thorell, 1877) and Ti…
The male of Tityus kuryi Lourenço, 1997 is described for the first time. Despite being very similar to the female, the male presents more robust metasomal segments. Additionally, …
Three new cecidogenous species of Palaeomystella Fletcher (Lepidoptera, Momphidae) from the Brazilian Atlantic Rain For…
Three new cecidogenous species of Palaeomystella Fletcher (Lepidoptera, Momphidae) from the Brazilian Atlantic Rain Forest are described. Larvae of P. fernandesi Moreira & Becker,…
The type material of Mantodea (praying mantises) deposited in the National Museum of Natural History, Smithsonian Insti…
The collection of Mantodea of the National Museum of Natural History, Smithsonian Institution, includes 26 holotypes, 7 allotypes, 4 lectotypes, 23 paratypes, and 1 paralectotype.…
A synopsis of the tribe Lachnophorini, with a new genus of Neotropical distribution and a revision of the Neotropical g…
This synopsis provides an identification key to the genera of Tribe Lachnophorini of the Western and Eastern Hemispheres including five genera previously misplaced in carabid clas…
A new species of Chiasmocleis (Microhylidae, Gastrophryninae) from the Atlantic Forest of Espírito Santo State, Brazil
Among Neotropical microhylids, the genus Chiasmocleis is exceptionally diverse. Most species of Chiasmocleis were described in recent years based on external morphology, but recen…
Intertidal and nearshore Nereididae (Annelida) of the Falkland Islands, southwestern Atlantic, including a new species …
The intertidal and nearshore Nereididae of the Falkland Islands are detailed and a new species of Gymnonereis described. The new species, Gymnonereis tenera sp. n., is the first r…
Review of the genus Fontidessus Miller & Spangler, 2008 (Coleoptera, Dytiscidae, Hydroporinae, Bidessini) with descript…
The genus Fontidessus Miller & Spangler, 2008 (Coleoptera: Dytiscidae: Hydroporinae: Bidessini) is reviewed. The genus now includes seven species with three previously described, …
An interactive multi-entry key to the species of Megalostomis Chevrolat, with description of a new species from Paragua…
The main goal of this contribution is to release an interactive multi-entry key to all known species of the genus IChevrolat. This key constitutes a new tool created to aid the id…
A new species of Dendrocerus (Hymenoptera, Megaspilidae) from southern Brazil
A new species of the megaspiline genus IRatzeburg is described and figured. Dendrocerus riograndensis sp. n., is known from a series of males from the central region of Rio Grande…
A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Cole…
The Neotropical species of the rarely collected genus Bolitogyrus (Coleoptera: Staphylinidae: Staphylininae: Staphylinini) are revised. The genus exhibits an uncommon, disjunct di…
A new species of Ocotea (Lauraceae) from Espírito Santo, Brazil
Ocotea Aubl. is the largest genus amongst the Neotropical Lauraceae, estimated to have 469 recognised species in the Americas, 183 of them occurring in Brazil, 117 being endemic t…
Aiouea altomacaensis (Lauraceae), new species from the mountains of Rio de Janeiro, Brazil
The Brazilian Atlantic Rainforest is one of the centres of diversity for the genus Aiouea (Lauraceae). This Neotropical genus comprises approximately 85 species, 35 of which occur…
Sub-Antarctic subtidal and intertidal macroalgae in rocky ecosystems of Inútil Bay, Tierra del Fuego in Southern Patago…
The sub-Antarctic region is notable for its high macroalgal diversity. Although a number of studies have documented the species richness of macroalgae along the Chilean sub-Antarc…
New records of semi-aquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from the South Region of Brazil
Semi-aquatic bug (Hemiptera, Heteroptera, Gerromorpha) constitute a monophyletic group of predatory insects that play crucial roles in limnic environments. The Oriental and Neotro…
Birds of the Tolima Department of Colombia’s central Andean Region
The information in this article corresponds to a compilation of data from scientific journals, ornithological collections and virtual libraries (xeno-song, eBird and Biomap), as w…
Unveiling hidden molluscan diversity: New species records in Bougainville Bay, Strait of Magellan
The Chilean Fjords and Channels ecoregion presents unique oceanographic conditions that are sensitive to environmental impacts and socio-ecological systems. To assess how these im…
Gnaphalieae (Asteraceae): diversity and distribution in Rio de Janeiro – Brazil
As an area of great diversity and suffering from many threats, the Brazilian Mata Atlântica and its floristic zones, such as Restingas, Rock Outcrops and Grasslands, call for atte…
Type catalogue of the Simuliidae (Diptera) Collection of the Oswaldo Cruz Institute
An annotated catalogue of the Simuliidae (Diptera) type specimens housed in the Simuliidae Collection of the Oswaldo Cruz Institute (CSIOC) is presented, comprising 350 primary ty…
Poorly known names authored by Antonio Raimondi
Nine nomenclatural acts by Antonio Raimondi are assessed and commented. These include a new genus, six new species and two new combinations that are absent from or incorrectly cit…
Easy prey: opportunistic predation of great fruit-eating bat (Artibeus lituratus) by ocelot (Leopardus pardalis) with o…
Despite their suitable size, bats (Chiroptera) represent rare to occasional prey for the ocelot (Leopardus pardalis), a generalist carnivorous feline with a wide geographic distri…
Avian composition in the rural ‘Amazon Front Yard’ still retains its humid tropical identity
The Bragantina region is one of the most densely settled regions of the Amazon Basin. Rainforests were clear-cut during the last two centuries and replaced by a tessellated rural …
Arboreal mammal use of canopy walkway bridges in an Amazonian forest with continuous canopy cover
The Amazon Basin is a biodiversity hotspot, with vertically stratified forests fostering complex habitats and high mammal diversity. Although mammals play a critical role in maint…
Records of Polycladus gayi (Tricladida, Geoplanidae) preying on the invasive slug Limax maximus (Gastropoda, Limacidae)…
Terrestrial planarians are important soil predators of a variety of invertebrate groups, including exotic and invasive mollusc species. However, data on prey in natural conditions…
Genetic structure and microsatellite-based genetic variation influenced by habitat fragmentation in pudu deer (Pudu pud…
Landscape alterations have strong impacts on the distribution of genetic variation within and between populations, and understanding these effects can provide insights for design …
Dietary composition of Oxyrhopus trigeminus in the Brazilian semiarid: new records, a literature review, and an inciden…
The Caatinga, the largest seasonal dry tropical forest in South America, has been experiencing significant environmental disturbances due to deforestation, agricultural expansion,…
Development of lip protrusion in trahira, Hoplias malabaricus (Bloch, 1794), associated with aquatic surface respiration
The histological organization of labial development of trahira Hoplias malabaricus found in a drying pool was compared with normal fish from a similar environment. It was found th…
New records of domestic dog negative impacts on native vertebrates in the Ecuadorian Andes
Domestic dogs (Canis familiaris) significantly threaten endangered vertebrates worldwide. In this study, we report 11 documented cases of dogs chasing, harassing, competing for fo…
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