scholarly journals A review of the spider-attacking Polysphincta dizardi species-group (Hymenoptera, Ichneumonidae, Pimplinae), with descriptions of seven new species from South America

ZooKeys ◽  
2021 ◽  
Vol 1041 ◽  
pp. 137-165
Author(s):  
Diego G. Pádua ◽  
Ilari E. Sääksjärvi ◽  
Tamara Spasojevic ◽  
Kari M. Kaunisto ◽  
Ricardo F. Monteiro ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Species Group ◽  
Identification Key

The Neotropical Polysphincta dizardi species-group is revised. We describe seven new species from South America: P. bonitasp. nov., P. cosnipatasp. nov., P. incasp. nov., P. macroepomiasp. nov., P. organensissp. nov., P. pichinchasp. nov., and P. teresasp. nov. In addition, we provide a diagnosis and an identification key to all species of the group.

The Neotropical species of Clistopyga (Hymenoptera, Ichneumonidae, Pimplinae). Part II: the C. isayae species group, with the description of seven new species

Zootaxa ◽  
2018 ◽  
Vol 4442 (1) ◽  
pp. 101-121
Author(s):  
EDGARD PALACIO ◽  
SANTIAGO BORDERA ◽  
ILARI E. SÄÄKSJÄRVI ◽  
FRANCISCO DÍAZ
Keyword(s):  
New Species ◽  
South America ◽  
New World ◽  
Species Group ◽  
Identification Key ◽  
Undescribed Species ◽  
Neotropical Species ◽  
Tropical South America

The New World Clistopyga isayae species group is revised. Seven species are described as new: C. crassicaudata sp. nov., C. isayae sp. nov., C. kalima sp. nov., C. nigriventris sp. nov., C. panchei sp. nov., C. splendida sp. nov. and C. taironae sp. nov. An illustrated identification key to all species of the group is provided. The Clistopyga isayae species group is composed entirely of previously undescribed species mainly from Andean forests of tropical South America. 

A new species and distribution records of Dichotomius Hope, 1838 (Coleoptera: Scarabaeidae: Scarabaeinae) in Colombia

Zootaxa ◽  
2021 ◽  
Vol 4942 (2) ◽  
pp. 193-206
Author(s):  
WILLIAM CHAMORRO ◽  
ALEJANDRO LOPERA-TORO ◽  
MICHELE ROSSINI
Keyword(s):  
New Species ◽  
Systematic Position ◽  
Species Group ◽  
Identification Key ◽  
First Time ◽  
A New Species

Dichotomius (Dichotomius) quadrilobatus new species (Coleoptera: Scarabaeidae: Scarabaeinae: Dichotomiini), from western Amazonia (Brazil, Colombia, Ecuador and Peru) is described and its putative systematic position within the Dichotomius boreus species group is discussed. An updated identification key to the species of the Dichotomius boreus species group is provided. Additionally, Dichotomius (Selenocopris) fortepunctatus Luederwaldt, 1923 is recorded for the first time in Colombia. 

The new Belostoma fittkaui species group with supplemental descriptions of B. fittkaui De Carlo and B. sayagoi De Carlo

Zootaxa ◽  
2021 ◽  
Vol 4942 (4) ◽  
pp. 583-591
Author(s):  
FABIANO STEFANELLO
Keyword(s):  
New Species ◽  
South America ◽  
Comparative Morphology ◽  
Species Group ◽  
Type Material ◽  
Extreme Variation ◽  
Species Groups ◽  
A New Species ◽  
Tropical South America

The giant water bug fauna from tropical South America remains poorly known. Three species of Belostoma Latreille (Belostoma fittkaui De Carlo, B. sayagoi De Carlo and B. hirsutum Roback & Nieser) have been cited only a few times in the literature. These three species are remarkable since they represent an extreme variation for the genus, with article II of the labium distinctly shorter than article III. Here, the synonymy of B. hirsutum with B. sayagoi is proposed based on examination of type material and additional specimens. Further, B. fittkaui and B. sayagoi are redescribed, including discussion about comparative morphology with congeners. A new species group is proposed for these species and a key to the Belostoma species groups is provided. Distribution records are also updated. 

Two new species of Ctenitis (Dryopteridaceae) from South America and taxonomic notes on similar species

Phytotaxa ◽  
2015 ◽  
Vol 239 (1) ◽  
pp. 1 ◽  
Author(s):  
Raquel Stauffer Viveros ◽  
Alexandre Salino
Keyword(s):  
New Species ◽  
South America ◽  
Identification Key ◽  
Northeastern Brazil ◽  
Southeastern Brazil ◽  
Similar Species ◽  
New Synonyms ◽  
Two New Species

Two new species of Ctenitis (Dryopteridaceae) from South America are described and illustrated: Ctenitis christensenii is endemic to southeastern Brazil and C. glandulosa occurs from southeastern to northeastern Brazil and in Guyana. An identification key and notes about the distribution, habitat and taxonomy of the new species, C. falciculata and allies are provided. Moreover, seven lectotypifications and two new synonyms are proposed.

Up on the table mountains in Brazil: new Bromeliaceae and Eriocaulaceae (Poales) from the Pantepui in the Guayana Shield

2018 ◽  
Vol 151 (1) ◽  
pp. 130-141 ◽  
Author(s):  
Rafael G. Barbosa-Silva ◽  
Marcelo Trovó ◽  
Gustavo Martinelli ◽  
Rafaela Campostrini Forzza
Keyword(s):  
New Species ◽  
South America ◽  
Field Trips ◽  
Identification Key ◽  
Distribution Maps ◽  
Guayana Shield ◽  
Northern South America ◽  
Angiosperm Species ◽  
Herbarium Collections ◽  
Table Mountains

Background and aims – As “islands in the sky” of northern South America, the isolated ecosystems of the Pantepui province include a distinct flora with high levels of endemism and which are ancestral areas for many angiosperm lineages. About one fifth of Pantepui angiosperm species are distributed in Poales, a highly diverse angiosperm order.Methods – Recent field trips were carried out on two Brazilian tepuis, by foot and helicopter. Herbarium collections were consulted and compared with the proposed new species. Key results – Four new species of Poales, three Navia Schult. & Schult.f. (Bromeliaceae) and one Paepalanthus Mart. (Eriocaulaceae) were found. Descriptions, illustrations, and distribution maps of the new species, as well as an identification key to Brazilian Navia species, are provided.

scholarly journals A new synonym for Zelia Robineau-Desvoidy, 1830 (Diptera, Tachinidae), the genus Opsozelia Townsend, 1919, with the description of three new species

ZooKeys ◽  
2019 ◽  
Vol 880 ◽  
pp. 113-133
Author(s):  
Rodrigo de Vilhena Perez Dios ◽  
Marcelo Domingos de Santis
Keyword(s):  
New Species ◽  
Single Species ◽  
Species Group ◽  
Identification Key ◽  
Additional Material ◽  
New Synonym ◽  
Three New Species

The monotypic tachinid genus Opsozelia Townsend, 1919 (Diptera: Tachinidae) is synonymized with ZeliaRobineau-Desvoidy 1830, syn. nov. The single species of Opsozelia, O. discalis Townsend, 1919, is redescribed as Zelia discalis, comb. nov., based on examination of the holotype from Guyana and additional material from Suriname, Brazil and Paraguay. Three new species of Zelia similar to Z. discalis are described from Brazil: Z. magnasp. nov., Z. guimaraesisp. nov. and Z. formosasp. nov. These four species are treated informally as the Zelia discalis species group. An identification key to the species of this species group is provided based on male specimens. Descriptions and illustrations are provided for the male terminalia of all species and for the female terminalia of one species, Z. guimaraesi.

A new species of the genus Gaucha Mello-Leitão, 1924 from Minas Gerais, Brazil (Solifugae, Mummuciidae)

Zootaxa ◽  
2021 ◽  
Vol 5061 (3) ◽  
pp. 559-572
Author(s):  
MAYSA F.V.R. SOUZA ◽  
RODRIGO L. FERREIRA ◽  
LEONARDO S. CARVALHO
Keyword(s):  
New Species ◽  
South America ◽  
Species Group ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Spider Species ◽  
A New Species

A new sun-spider species of the ibirapemussu species-group of the genus Gaucha is described based on males and a female collected in Southeastern Brazil. The newly described species can be readily distinguished from its congeners by the reduction of the cheliceral fixed finger, distal tooth (FD), closely positioned and smaller than the medial tooth (FM); the presence of cheliceral fixed finger profondal subproximal (PFSP) and retrofondal submedial (RFSM) teeth; and by the cheliceral movable finger, medial tooth (MM) well developed, larger than submedial tooth (MSM) and smaller than proximal tooth (MP). This is the thirteenth described species in the genus Gaucha, all known from South America.  

New subgenus and four species of Lepidocyrtus Bourlet (Collembola, Entomobryidae, Lepidocyrtinae) from Amazon

2019 ◽  
Vol 50 (2) ◽  
pp. 189-234 ◽  
Author(s):  
Nikolas G. Cipola ◽  
José W. de Morais ◽  
Bruno C. Bellini
Keyword(s):  
New Species ◽  
South America ◽  
Antennal Segment ◽  
Identification Key ◽  
New Subgenus

Here a new subgenus of Lepidocyrtus Bourlet from South America is proposed. Fractocyrtus subgen.n. differs from other subgenera by tergal polychaetosis, dental tubercle truncate and dentes with numerous spine-like chaetae. Four new species of Lepidocyrtus are described, two of Setogaster Salmon and two of Fractocyrtus subgen.n. Lepidocyrtus (S.) amazonicus sp.n. and L. (S.) multisensillatus sp.n. are similar to L. nigrosetosus Folsom by basomedian field with chaetae smooth and dental tubercle rounded, but differ in dorsal chaetotaxy. Lepidocyrtus (F.) americanus sp.n. and L. (F.) mateosi sp.n. are similar by presence of numerous dental spines, but differ in chaetotaxy. Due to inconsistencies concerning scales on appendages of Lepidocyrtus subgenera, four synonyms are proposed, and the characteristics diagnostic to subgenera are shape and presence of dental tubercle, dental spines, mucronal spinelet and apical bulb of fourth antennal segment. An identification key to subgenera is also provided.

A further contribution to the knowledge of Uroleucon species (Hemiptera, Aphididae) living on Adesmia (Fabaceae) in southern South America, with description of a new species from Chile

Zootaxa ◽  
2020 ◽  
Vol 4748 (3) ◽  
pp. 548-560
Author(s):  
M. PILAR MIER DURANTE ◽  
JAIME ORTEGO ◽  
CAROL D. VON DOHLEN ◽  
JUAN MANUEL NIETO NAFRÍA
Keyword(s):  
New Species ◽  
South America ◽  
Identification Key ◽  
Southern South America ◽  
Viviparous Female ◽  
A New Species

Uroleucon (Hemiptera, Aphididae, Macrosiphini) is a highly diverse and widely distributed genus. Most of its species are hosted by plants of the Asteraceae or Campanulaceae, but three species from the southern end of South America have specialized to live on plants of the genus Adesmia (Fabaceae). New morphological and chorological data are provided for U. adesmiae Mier Durante and Ortego and U. naheulhuapense Nieto Nafría & von Dohlen, with a description of the alate viviparous female of the latter species. U. australe Nieto Nafría & Mier Durante, sp. n. is described from apterous viviparous females, oviparous females and males from four localities in the Chilean regions of Aysén and Magallanes; it is very close to U. nahuelhuapense, both morphologically and genetically. Contrary to what is typical for aphids, the males of U. australe have a greater number of distinguishing characters than are found in viviparous females. A modification of the identification key to the apterous viviparous females of the known Uroleucon species in South America by Nieto Nafría et al. (2019) is presented. 

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