scholarly journals Late Pleistocene echimyid rodents (Rodentia, Hystricognathi) from northern Brazil

2016 ◽  
Vol 88 (2) ◽  
pp. 829-845 ◽  
Author(s):  
THAIS M.F. FERREIRA ◽  
ADRIANA ITATI OLIVARES ◽  
LEONARDO KERBER ◽  
RODRIGO P. DUTRA ◽  
LEONARDO S. AVILLA
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Late Pleistocene ◽  
Fossil Record ◽  
South American ◽  
Squamate Reptiles ◽  
Northern Brazil ◽  
Northern South America ◽  
First Time

ABSTRACT Echimyidae (spiny rats, tree rats and the coypu) is the most diverse family of extant South American hystricognath rodents (caviomorphs). Today, they live in tropical forests (Amazonian, coastal and Andean forests), occasionally in more open xeric habitats in the Cerrado and Caatinga of northern South America, and open areas across the southern portion of the continent (Myocastor). The Quaternary fossil record of this family remains poorly studied. Here, we describe the fossil echimyids found in karst deposits from southern Tocantins, northern Brazil. The analyzed specimens are assigned to Thrichomys sp., Makalata cf. didelphoides and Proechimys sp. This is the first time that a fossil of Makalata is reported. The Pleistocene record of echimyids from this area is represented by fragmentary remains, which hinders their determination at specific levels. The data reported here contributes to the understanding of the ancient diversity of rodents of this region, evidenced until now in other groups, such as the artiodactyls, cingulates, carnivores, marsupials, and squamate reptiles.

The southernmost fossil record of Squamates

2017 ◽  
Vol 38 (1) ◽  
pp. 15-30 ◽  
Author(s):  
Adriana Albino ◽  
Santiago Brizuela ◽  
Sergio Vizcaíno
Keyword(s):  
South America ◽  
Fossil Record ◽  
Early Miocene ◽  
Substantial Part ◽  
South American ◽  
Santa Cruz ◽  
Origin And Evolution ◽  
Present Distribution ◽  
First Time

Squamates form a substantial part of the present-day South American herpetofauna, and their fossils constitute an indispensable evidence for understanding the origin and evolution of the main taxa. Squamates are relatively common in Miocene localities of Patagonia, especially in levels of the late early Miocene Santa Cruz Formation. In this contribution, remains of the three species of the extinct iguanidErichosaurusAmeghino 1899 (E. diminutus,E. bombimaxillaandE. debilis) are redescribed, and new squamate specimens are reported for first time. The genusErichosaurusis considered invalid.Erichosaurus debilis,E. diminutusand a new specimen are recognized as indeterminate species of the extant polichrotinePristidactylus, whereasE. bombimaxillaremains as an indeterminate iguanid. Snakes are represented by an indeterminate colubrid. All these specimens, together with a tupinambine teiid previously described for the same formation, represent the southernmost fossil record of squamates in South America and indicate the occurrence of the iguanidPristidactylus, the teiidTupinambisand the colubrid snakes south to their present distribution as back as during the early Miocene.

scholarly journals Taxonomic revision of the South American subgenus Canthon (Goniocanthon) Pereira & Martínez, 1956 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini)

2018 ◽  
Author(s):  
Luis Gabriel de O.A. Nunes ◽  
Rafael V. Nunes ◽  
Fernando Z. Vaz-de-Mello
Keyword(s):  
South America ◽  
Atlantic Forest ◽  
Taxonomic Revision ◽  
South American ◽  
The South ◽  
Senior Synonym ◽  
Northern Portion ◽  
Northern South America ◽  
First Time

In this article, the subgenus Canthon (Goniocanthon) Pereira & Martínez, 1956 is diagnosed within the tribe Deltochilini Lacordaire, 1856 and redefined with three species: 1) C. (Goniocanthon) bicolor Castelnau, 1840, from the Guyanas and northern South America, included for the first time in this subgenus; 2) C. (G.) smaragdulus (Fabricius, 1781), including two subspecies, C. (G.) smaragdulus smaragdulus, senior synonym of Canthon speculifer Castelnau, 1840 (neotype here designated), from the southern portion of the Atlantic Forest and C. (G.) smaragdulus subviridis Schmidt stat. rev. (lectotype here designated) from the northern portion of the Atlantic Forest; 3) C. (G.) fulgidus Redtenbacher, 1868, which includes three subspecies, C. (G.) fulgidus fulgidus from the southern Amazon (lectotype here designated), C. (G.) fulgidus martinezi subsp. nov., from the central and southern Amazon and C. (G.) fulgidus pereirai subsp. nov., from the western Amazon.

Redefinition of the vittata species group of Epicauta Dejean (1834) (Coleoptera: Meloidae) and taxonomic revision of the species from southern South America

Zootaxa ◽  
2011 ◽  
Vol 2824 (1) ◽  
pp. 21 ◽  
Author(s):  
MARÍA PAULA CAMPOS-SOLDINI ◽  
SERGIO ALBERTO ROIG-JUÑENT
Keyword(s):  
North America ◽  
South America ◽  
Central America ◽  
Taxonomic Revision ◽  
Species Group ◽  
South American ◽  
South American Species ◽  
Southern South America ◽  
Northern South America ◽  
First Time

The Epicauta vittata group are commonly known as striped blister beetles and was defined by previous authors to include 32 species, 18 from North America, Central America and northern South America, and 14 from southern South America. In the present revision we revised 22 species from South America, excluding the following southern South American species: E. borgmeieri Denier, 1935; E. floydwerneri Martínez, 1955; E. franciscana Denier, 1935; E. fulginosa (Oliver, 1795); E. purpureiceps (Berg, 1889); E. rutilifrons Borchmann, 1930; and E. zebra (Dohrn, 1876) because they do not have the diagnostic characters of the group. The species of the E. vittata group from southern South America are: E. bosqi Denier, 1935; E. clericalis (Berg, 1881); E. grammica (Fischer, 1827); E. leopardina (Haag-Rutemberg, 1880); E. luteolineata Pic, 1933; E. missionum (Berg, 1881); E. monachica (Berg, 1883); E. rutilifrons Borchmann, 1930; plus two more species E. excavata (Klug, 1825); and E. semivittata (Fairmaire, 1875) until now not included in other groups. We provide a complete diagnosis of the E. vittata group from southern South America, redescribing and illustrating all included species. Detailed descriptions and illustrations of female and male genitalia are presented for the first time for these species. Finally, we provide an identification key for the ten species presently included in the E. vittata group, and update the geographic distribution of each species.

scholarly journals Liogenys Guerin-Méneville, 1831 (Coleoptera: Scarabaeidae: Melolonthinae: Diplotaxini) of northern South America and Central America: taxonomic overview with four new species

Zootaxa ◽  
2021 ◽  
Vol 4990 (2) ◽  
Author(s):  
MARIANA A. CHERMAN ◽  
DANIEL S. BASÍLIO ◽  
KLEBER M. MISE ◽  
JOHANNES FRISCH ◽  
ANDREW B.T. SMITH ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Trinidad And Tobago ◽  
Central America ◽  
Central American ◽  
New Combination ◽  
South American ◽  
Northern South America ◽  
First Time ◽  
Subjective Synonym

The biodiversity of northern South American and Central American Liogenys Guérin-Méneville, 1831 (Coleoptera: Scarabaeidae: Melolonthinae: Diplotaxini) is reviewed. Four new species are described: L. clipeosetosa Cherman, new species; L. genieri Smith & Cherman, new species; L. granadina Cherman, new species; and L. schneiderae Cherman, new species. The male of L. quadridens (Fabricius, 1798) and the female of L. quadridentata Blanchard, 1851 are described for the first time. Liogenys gebieni Moser, 1921 is a new junior subjective synonym of L. macropelma Bates, 1887. The northernmost record of Liogenys is emended to Trinidad and Tobago for L. granadina Cherman, new species and L. schneiderae new species. Diplotaxis puberea cuprascens (Bates, 1887) new combination, Diplotaxis puberea puberea (Bates, 1887) new combination, and Diplotaxis pubisternis (Bates, 1887) new combination are all transferred from Liogenys to Diplotaxis Kirby, 1837. Lectotypes are designated for Liogenys gebieni Moser, 1921; Melolontha quadridens Fabricius, 1798; and Liogenys quadridentatus Blanchard, 1851. An identification key to northern South American Liogenys is presented.

Late Pleistocene/early Holocene tropical forest occupations at San Isidro and Peña Roja, Colombia

Antiquity ◽  
1997 ◽  
Vol 71 (273) ◽  
pp. 683-690 ◽  
Author(s):  
Cristóbal Gnecco ◽  
Santiago Mora
Keyword(s):  
South America ◽  
Tropical Forest ◽  
Tropical Forests ◽  
Late Pleistocene ◽  
Human Beings ◽  
Hunter Gatherers ◽  
The World ◽  
Northern South America ◽  
American Tropics ◽  
Lines Of Evidence

Evidence of early occupations by hunter-gatherers in diverse tropical forests is increasing the world over (e.g. Gorman 1971; Pavlides & Gosden 1994), even in America (Roosevelt et al. 1996). This paper reports them in northern South America. Several lines of evidence suggest that many kinds of forests, some or all without modern analogues, existed in the American tropics during glacial times and remained there, with changing composition, until the present. According to evidence presented here, human beings adapted to those forests in northern South America since, at least, the end of the Pleistocene.

Taxonomic studies in the Aganisia complex (Orchidaceae, Zygopetalinae)

Phytotaxa ◽  
2015 ◽  
Vol 238 (1) ◽  
pp. 1 ◽  
Author(s):  
Thiago E. C. Meneguzzo ◽  
José F. A. Baumgratz ◽  
Cássio Van den Berg
Keyword(s):  
South America ◽  
Coastal Vegetation ◽  
South American ◽  
Southern Brazil ◽  
New Synonyms ◽  
Northern South America ◽  
Taxonomic Studies ◽  
First Time ◽  
The Guianas ◽  
Eleven Species

The Aganisia complex (Orchidaceae, Epidendroideae, Cymbidieae, Zygopetalinae), which comprises the genera Aganisia, Cheiradenia, Koellensteinia, Otostylis and Paradisanthus, are all revised except Koellensteinia, for which a synopsis is proposed. We reviewed 109 generic, sectional, specific and infraspecific names. Of these, five are for the first time listed as names in scheda. We propose two new combinations, 17 new synonyms, 30 typifications, and two types for which the category is corrected. Doubtful, misapplied and non-applicable names are also treated. We recognize three species and two forms of Aganisia, one species of Cheiradenia and Paradisanthus, eleven species of Koellensteinia and two species Otostylis. The Aganisia complex is completely South American, with exception of K. tricolor, which also occurs in Belize, and A. pulchella, C. cuspidata and K. graminea, in Trinidad. Aganisia and Otostylis occur predominantly in lowland areas of western and northern South America; Cheiradenia in Trinidad and the Guianas Shield; Paradisanthus mainly on the coast of eastern and southern Brazil; and Koellensteinia the most widely distributed, occurring predominantly in South America strictly north of the Tropic of Capricorn. Aganisia and Cheiradenia grow in rainforests; Paradisanthus in rainforests and coastal vegetation; Otostylis in grassy areas; and Koellensteinia in all of these.

New species of South American Agalliinae leafhoppers (Homoptera: Cicadellidae)

1979 ◽  
Vol 10 (4) ◽  
pp. 244-256 ◽  
Author(s):  
Dwight M. Delong ◽  
Rauno E. Linnavuori
Keyword(s):  
New Species ◽  
South America ◽  
Male Genitalia ◽  
South American ◽  
First Time

AbstractThe following new Agalliinae species from South America are described: Agalliopsis atahualpa n.sp. (Peru), A. lamellaris n.sp. (Bolivia), A. bifida n.sp. (Bolivia), A. appendiculata n.sp. (Bolivia), A. imitator n.sp. (Peru), A. vittata n.sp. (Peru), A. harpago n.sp. (Bolivia), A. virgator n.sp. (Bolivia), A. curiche n.sp. (Colombia), A. spinosa n.sp. (Peru),A. bicuspidata n.sp. (Peru), Agallia santarema n.sp. (Brazil), A. sinchona n.sp. (Peru), A. estebana n.sp. (Bolivia), A. longicauda n.sp. (Brazil). The male genitalia of Euragallia lata Om. are described for the first time.

The bee genus Psaenythia in northern South America (Hymenoptera: Andrenidae)

2021 ◽  
Vol 157 (3) ◽  
pp. 153-167
Author(s):  
Michael S. Engel ◽  
Diego A. Guevara ◽  
Rodulfo Ospina-Torres ◽  
Victor H. Gonzalez
Keyword(s):  
New Species ◽  
South America ◽  
Southern South America ◽  
Two New Species ◽  
Northern South America ◽  
First Time

The diverse bee genus Psaenythia Gerstaecker (Panurginae, Protandrenini), hitherto known from central and southern South America, is recorded from northern South America for the first time. Two new species are described: Psaenythia diceratops, sp. n., from northeastern Colombia, and P. guaricoensis, sp. n., from central Venezuela. The males of P. diceratops are noteworthy for possessing prominent apicolateral clypeal horns, elongate scythe-like mandibles, and displaying macrocephaly with strong dimorphism. Keywords: Andrenidae, Anthophila, Apoidea, Panurginae, taxonomy, Neotropical

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