scholarly journals Review of the genus Chasmogenus Sharp, 1882 of northeastern South America with an emphasis on Venezuela, Suriname, and Guyana (Coleoptera, Hydrophilidae, Acidocerinae)

ZooKeys ◽  
2020 ◽  
Vol 934 ◽  
pp. 25-79
Author(s):  
Rachel R. Smith ◽  
Andrew Edward Z. Short
Keyword(s):  
New Species ◽  
South America ◽  
Cytochrome C Oxidase ◽  
Endemic Species ◽  
French Guiana ◽  
Molecular Data ◽  
Integrative Approach ◽  
Cytochrome C Oxidase I ◽  
Northern Brazil ◽  
Single Locality

The water scavenger beetle genus Chasmogenus Sharp, 1882 is reviewed in northeastern South America using an integrative approach that combines adult morphology and molecular data from the gene cytochrome c oxidase I (COI). Eighteen new species are described: Chasmogenus acuminatussp. nov. (Brazil, French Guiana, Guyana, Suriname), C. ampliussp. nov. (Venezuela), C. berbicensissp. nov. (Guyana), C. brownsbergensissp. nov. (Suriname), C. castaneussp. nov. (Venezuela), C. clavijoisp. nov. (Venezuela), C. cuspifersp. nov. (Venezuela), C. flavomarginatussp. nov. (Venezuela), C. gatosp. nov. (Venezuela), C. guianensissp. nov. (Suriname, Guyana), C. ignotussp. nov. (Brazil), C. ligulatussp. nov. (Suriname), C. lineatussp. nov. (Venezuela), C. pandussp. nov. (Brazil, French Guiana, Suriname), C. schmitssp. nov. (Suriname), C. sinnamarensissp. nov. (French Guiana), C. tafelbergensissp. nov. (Suriname), and C. undulatussp. nov. (Guyana). We found genetic support for an additional new species in Guyana which is currently only known from females that we refer to as Chasmogenus sp. C. We examined the holotypes of the four species previously known from the region, and found that C. occidentalis García syn. nov. and C. yukparum García syn. nov. are conspecific with C. bariorum García, 2000 and are synonymized with that species, which is here redescribed. We redescribe C. australis García and expand the range of this species to include northern Brazil, Guyana, and French Guiana. All species are aquatic, with most being associated with forested streams and forest pools. Of the 21 species, more than half (11) are only known from a single locality indicating the genus may have many more micro-endemic species yet to be discovered in the region. Characters of the male genitalia are essential for confirming the identity of some species, consequently it is not always possible to make positive identifications of unassociated female specimens based on morphology alone. Habitus images are provided as well as a revised key to the genus for northeastern South America.

New species and records of Chasmogenus Sharp, 1882 from the southwestern margin of the Guiana Shield (Coleoptera: Hydrophilidae: Acidocerinae)

Zootaxa ◽  
2021 ◽  
Vol 5048 (3) ◽  
pp. 435-443
Author(s):  
RACHEL D. GLYNN ◽  
ANDREW EDWARD Z. SHORT
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
French Guiana ◽  
Molecular Data ◽  
Integrative Approach ◽  
Guiana Shield ◽  
Adult Morphology ◽  
Northern Brazil ◽  
Southwestern Margin ◽  
Three New Species

The Neotropical water scavenger beetle genus Chasmogenus Sharp, 1882 is a diverse lineage with 34 described species. Here, three new species from the southwestern margin of the Guiana Shield are described using an integrative approach combining adult morphology and molecular data: Chasmogenus clinatus sp. n. (Brazil: Amazonas, Venezuela: Amazonas), C. gironae sp. n. (Venezuela: Amazonas), and C. inpa sp. n. (Brazil: Amazonas). Examination of the male genitalia is essential for confident identifications and thus unassociated females may prove extremely difficult to identify. New distributional records in Brazil for C. acuminatus Smith & Short, 2020 are provided as well as habitus images of newly described species and an updated key to the species from Venezuela, Suriname, Guyana, French Guiana and northern Brazil.  

Description of a new species of Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from South America

Zootaxa ◽  
2017 ◽  
Vol 4231 (3) ◽  
pp. 442 ◽  
Author(s):  
THAMARA ZACCA ◽  
MIRNA M CASAGRANDE ◽  
OLAF H H MIELKE ◽  
BLANCA HUERTAS ◽  
ANDREW F E NEILD ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Trinidad And Tobago ◽  
French Guiana ◽  
Wing Pattern ◽  
Northern Brazil ◽  
A New Species

A new species of Magneuptychia Forster, 1964 (Lepidoptera: Nymphalidae, Satyrinae), Magneuptychia andrei Zacca, Casagrande & Mielke sp. n., is described and illustrated from Venezuela, French Guiana, Trinidad and Tobago and northern Brazil. A comparative diagnosis between the new species and Magneuptychia ocypete (Fabricius, 1776), M. fugitiva Lamas, [1997] and Cissia terrestris (Butler, 1867) is also provided due the similarities in wing pattern. 

scholarly journals A new species of Heliothrips (Thysanoptera, Panchaetothripinae), based on morphological and molecular data

Zootaxa ◽  
2019 ◽  
Vol 4638 (1) ◽  
pp. 143-150 ◽  
Author(s):  
YANLAN XIE ◽  
LAURENCE A. MOUND ◽  
HONGRUI ZHANG
Keyword(s):  
New Species ◽  
South America ◽  
Southern China ◽  
Molecular Data ◽  
Tropical Regions ◽  
Heliothrips Haemorrhoidalis ◽  
Northern Brazil ◽  
Morphological And Molecular Data ◽  
A New Species ◽  
Area Of Origin

Heliothrips longisensibilis sp. n. is described from the tropical regions of southern China, Yunnan and Hainan, based on morphology and data from mitochondrial and nuclear genes. However, specimens that are identical in colour and structure are reported from northern Brazil, and this is presumably the area of origin of this new species. The area of origin within South America of the Greenhouse Thrips, Heliothrips haemorrhoidalis, is discussed and remains in doubt. An identification key to the four species of Heliothrips is provided. 

A new riparian species of Ramalina (Ramalinaceae) from Brazil, with a key to neotropical saxicolous species

2018 ◽  
Vol 50 (5) ◽  
pp. 541-553 ◽  
Author(s):  
Emerson Luiz GUMBOSKI ◽  
Sionara ELIASARO ◽  
Mayara Camila SCUR ◽  
Aline Pedroso LORENZ-LEMKE ◽  
Rosa Mara BORGES DA SILVEIRA
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Habitat Preference ◽  
Molecular Data ◽  
Genetic Distances ◽  
Integrative Approach ◽  
Chemical Variation ◽  
Southern Brazil ◽  
Riparian Species ◽  
High Altitude Grasslands

AbstractThe new species Ramalina fleigiae from Brazil is described growing on rocks in riverbeds in high altitude grasslands of southern Brazil. It grows in areas with constant water flow, sometimes almost immersed, and always in exposed habitats. Through an integrative approach, the detailed description of R. fleigiae includes morphological, anatomical, ecological, chemical and molecular data. Ribosomal DNA-based phylogenies suggest that R. fleigiae is more closely related to a species that shares its habitat preference (R. laevigata) than to the morphologically and chemically similar R. exiguella and R. gracilis. Ramalina fleigiae and R. laevigata can be distinguished by thallus morphology (irregularly flat branches in R. fleigiae vs. flat to canaliculate in R. laevigata) and pattern of chondroid tissue, as genetic distances between them are compatible with the interspecific range. It is possible that many species of Ramalina still remain hidden within the morphological or chemical variation of currently accepted species. Combining ecological, anatomical and molecular data will improve our future understanding of this genus.

Revision of the genus Corythalia C.L. Koch, 1850, part 1: Diagnosis and new species from South America (Araneae: Salticidae: Salticinae: Euophryini)

Zootaxa ◽  
2020 ◽  
Vol 4806 (1) ◽  
pp. 1-144
Author(s):  
STEFFEN BAYER ◽  
HUBERT HÖFER ◽  
HEIKO METZNER
Keyword(s):  
New Species ◽  
South America ◽  
French Guiana ◽  
Valid Species ◽  
Nominal Species ◽  
Type Specimens ◽  
Incertae Sedis ◽  
The World ◽  
Primary Type ◽  
First Time

We propose a revision of the spider genus Corythalia C.L. Koch, 1850 (Salticidae: Euophryini) with a revised genus diagnosis based on examination of all species available to us. In this paper we redescribe all previously described species from South America with revised species diagnoses and describe 20 new species from South America (and the nearby islands). For C. latipes, the type species of the genus Corythalia, a neotype is designated. In total, 52 nominal species of the genus are herein treated, 46 species are recognized as valid. The females of C. waleckii Taczanowski, 1871, C. luctuosa Caporiacco, 1954 and C. latipes (C.L. Koch, 1846) are described for the first time. Corythalia sellata Simon, 1901, erroneously considered as nomen nudum in the present version of the World Spider Catalog, is here recognised as a valid species. Corythalia fulgipedia Crane, 1948 is also considered a valid species and is removed from the synonymy of C. tropica (Mello-Leitão, 1939). One name is considered a nomen dubium (Corythalia variegata Caporiacco, 1954), two are nomina nuda (C. major Simon, 1901; C. dimidiata Simon, 1901). Two species are transferred to other genera: C. argyrochrysos (Mello-Leitão, 1946) to Pachomius Peckham & Peckham, 1896 as Pachomius argyrochrysos (Mello-Leitão, 1946), comb. nov. and C. heliophanina (Taczanowski, 1871) to Neonella Gertsch, 1936, as Neonella heliophanina (Taczanowski, 1871), comb. nov. under incertae sedis. One species is synonymised: C. barbipes (Mello-Leitão, 1939) is a junior synonym of C. cincta (Badcock, 1932), syn. nov. The new Corythalia species are: C. conferta sp. nov. (♂♀, Brazil), C. concinna sp. nov. (♀, Brazil), C. drepane sp. nov. (♂♀, Brazil), C. drepanopsis sp. nov. (♀, Brazil), C. antepagmenti sp. nov. (♂♀, Brazil), C. ricti Bayer, sp. nov. (♂, Guyana), C. protensa sp. nov. (♂, Brazil), C. gasnieri sp. nov. (♂, Brazil), C. verhaaghi sp. nov. (♀, Brazil), C. scutellaris Bayer, sp. nov. (♂♀, Ecuador), C. dakryodes Bayer, sp. nov. (♀, Colombia), C. foelixi Bayer, sp. nov. (♂♀, French Guiana), C. longiducta sp. nov. (♀, Brazil), C. latior sp. nov. (♂, Bolivia), C. trochophora Bayer, sp. nov. (♂, Ecuador), C. lineata Bayer, sp. nov. (♂, Guyana), C. hamulifera Bayer, sp. nov. (♂, Ecuador), C. tribulosa sp. nov. (♂, Colombia), C. flagrans sp. nov. (♂, Brazil) and C. fragilis sp. nov. (♂♀, Brazil). Illustrations are provided for all of the new species and for all (primary) type specimens of the species re-described. Hypotheses of possible relationships among the different species of Corythalia are discussed. 

Revision of the Neotropical genus Domodon Reemer (Diptera: Syrphidae), with description of three new species

Zootaxa ◽  
2019 ◽  
Vol 4648 (3) ◽  
pp. 523-536
Author(s):  
FERNANDO DA SILVA CARVALHO-FILHO ◽  
MARLÚCIA BONIFÁCIO MARTINS ◽  
MATHEUS TAVARES DE SOUZA ◽  
MENNO REEMER
Keyword(s):  
New Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Male Genitalia ◽  
French Guiana ◽  
Type Material ◽  
Key To Species ◽  
Northern South America ◽  
Three New Species

The Syrphidae genus Domodon Reemer, 2013 so far included two species, D. zodiacus Reemer, 2013 and D. peperpotensis Reemer, 2014, both recorded only from Suriname. Additional specimens belonging to this genus have been collected in many other localities in South and Central America. In this paper, the genus is revised and three new species are described: D. caxiuana sp. nov. (northern South America), D. inaculeatus sp. nov. (northern South America), and D. sensibilis sp. nov. (Costa Rica). The distribution of D. peperpotensis is extended to include French Guiana. Photographs of the type material of the new species and illustrations of male genitalia of all species are provided, as well as a key to species. 

scholarly journals A Review of Philenis Champion, 1906 (Coleoptera: Curculionidae: Conoderinae), with Descriptions of New Species from Central and South America

Diversity ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 84 ◽  
Author(s):  
Henry Hespenheide
Keyword(s):  
New Species ◽  
Costa Rica ◽  
South America ◽  
French Guiana ◽  
Social Hymenoptera ◽  
Taxonomic Treatment ◽  
The Family ◽  
Trapping Methods ◽  
History Of ◽  
Unusual Type

A brief review of the history of the taxonomic treatment of the genus Philenis Champion is presented and characters are discussed. Philenisflavipes Champion and P.fuscofemorata Champion, and 11 new species are described, including the first records from South America: P.anzaldoinewspecies (Costa Rica, Panamá), P.costaricensisnew species (Costa Rica), P.laselvaensisnew species (Costa Rica), P.auritibiaenew species (Costa Rica), P.brunneanew species (Costa Rica, Panamá), P.muscamimeticanewspecies (Panamá), P.chiriquiensisnew species (Panamá), P.guyanensisnew species (French Guiana), P.ferrugineanew species (Ecuador), P.howdeninew species (Ecuador), and P.kuschelinewspecies (Colombia, Ecuador). A key is provided to separate the species, and an unusual type of “multifurcate” scale is reported for some species. Two species have been associated with plants of the family Araceae. Most collections of this genus by the Arthropods of La Selva (ALAS) biodiversity project in Costa Rica were made by passive trapping methods during the dry season and at lower to middle elevations along an altitudinal transect on the slopes of Volcan Barva. The coloration of some species in the genus is hypothesized to mimic social Hymenoptera or flies.

On a new Melanosuchus species (Alligatoroidea: Caimaninae) from Solimões Formation (Eocene-Pliocene), Northern Brazil, and evolution of Caimaninae

Zootaxa ◽  
2020 ◽  
Vol 4894 (4) ◽  
pp. 561-593
Author(s):  
JONAS PEREIRA DE SOUZA-FILHO ◽  
EDSON GUILHERME ◽  
PETER MANN DE TOLEDO ◽  
ISMAR DE SOUZA CARVALHO ◽  
FRANCISCO RICARDO NEGRI ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Phylogenetic Inference ◽  
Generalist Predator ◽  
Quantitative Morphology ◽  
Upper Miocene ◽  
The Andes ◽  
Geological Unit ◽  
Northern Brazil ◽  
A New Species

The Solimões Formation (Eocene-Pliocene) is a well-known geological unit due to the great diversity of crocodylian species. Here we describe a new species of Melanosuchus, M. latrubessei sp. nov., from the Talismã locality, state of Amazonas, from the Upper Miocene of the Solimões Formation (Solimões Basin, Brazil). A new phylogenetic inference focused on Caimaninae is provided and the different evolutionary scenarios involving this new species are discussed. In addition, quantitative morphology studies are carried out and comments regarding the paleoecology aspects of this new species are made. M. latrubessei represents a medium-sized generalist predator, being proportional to the medium-sized M. niger. This new species inhabited the drainages of the Solimões Formation and was ecologically related to other taxa of crocodylians during the proto-Amazon Miocene. The evolutionary advantages of Melanosuchus genus are discussed to better understand the biogeographical occurrence of M. niger in South America, a species which survives to this day in contrast to several other species that became extinct during the Miocene-Pliocene periods. The extinction of the Miocene-Pliocene crocodylian taxa of the Solimões Formation, including Melanosuchus latrubessei, seems to be directly related with the uplift of the northern portions of the Andes, which generated significantly changes in drainages and Amazon paleoenvironments. 

A new, narrowly endemic species of Blumenbachia (Loasaceae subfam. Loasoideae) from Brazil

Phytotaxa ◽  
2015 ◽  
Vol 236 (2) ◽  
pp. 196 ◽  
Author(s):  
Tilo Henning ◽  
Samuel Siriani De Oliveira ◽  
Clemens Schlindwein ◽  
Maximilian Weigend
Keyword(s):  
New Species ◽  
South America ◽  
Endemic Species ◽  
Leaf Morphology ◽  
The Other ◽  
Flower Size ◽  
Unique Combination ◽  
Southern South America ◽  
In The Wild ◽  
A New Species

The genus Blumenbachia is restricted to Southern South America and comprises 10 species. Within that genus, monophyletic B. sect. Blumenbachia is a clearly delimited group of four previously known species. Here, a new species from Minas Gerais, Brazil, is described. Blumenbachia amana differs from the known species in ovoidal (versus spherical) capsules and in the unique combination of the inflorescence characters of B. insignis with the leaf morphology of B. latifolia, while approaching the flower size of B. catarinensis. Like all its close allies, the new species is facultatively autogamous, but pollinated by a highly specialized pollinator in the wild. It is geographically isolated from the other species and only known from two collections sites.

Adenia barthelatii (Passifloraceae), a new endemic species of Mayotte and its phylogenetic status within the genus Adenia

Phytotaxa ◽  
2013 ◽  
Vol 99 (1) ◽  
pp. 40 ◽  
Author(s):  
MARC PIGNAL ◽  
ROXANA YOCKTENG ◽  
DAVID J. HEARN ◽  
JEAN-NOËL LABAT
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Morphological Characters ◽  
Molecular Data ◽  
Phylogenetic Status ◽  
Morphological And Molecular Data ◽  
A New Species

Morphological characters support the description of a new species of Passifloraceae from Mayotte Island: Adenia barthelatii M. Pignal, Yockteng, Hearn & Labat. Morphological and molecular data suggest that A. barthelatii belongs to the ‘warty-gland’ subclade of Clade V defined by Hearn elsewhere. Since the warty-gland clade is restricted to the Malagasy region we suggest a Malagasy origin of this Maorian species of Adenia.

Sign in / Sign up

Export Citation Format

Share Document