scholarly journals Two New Species of Heteropterys (Malpighiaceae) from Southern South America

1998 ◽  
Vol 8 (3) ◽  
pp. 215 ◽  
Author(s):  
William R. Anderson
Keyword(s):  
New Species ◽  
South America ◽  
Southern South America ◽  
Two New Species

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

The genus Acellomyia González, a new taxonomic arrangement of its species and descriptions of a new genus and two new species from southern South America (Diptera: Tabanidae: Diachlorini)

Zootaxa ◽  
2017 ◽  
Vol 4337 (4) ◽  
pp. 523
Author(s):  
CHRISTIAN R. GONZÁLEZ
Keyword(s):  
Species Richness ◽  
New Species ◽  
South America ◽  
New Genus ◽  
Morphological Diversity ◽  
Southern Chile ◽  
Key To Species ◽  
Southern South America ◽  
Two New Species ◽  
Morphological Differences

The tabanid tribe Diachlorini (Diptera) is the most genus-rich tribe in the Tabanidae; the tribe is cosmopolitan, but the greatest species richness and morphological diversity are found in the Australasian and Neotropical Regions. A new arrangement for the species of Acellomyia González is given; Acellomyia lauta (Hine) is transferred to a new genus, Montismyia gen.n., based on its morphological differences from Acellomyia and geographical distribution. The morphological differences between Acellomyia and Montismyia gen. n. are discussed. Two new species, Acellomyia casablanca sp.n. and Acellomyia puyehue sp.n., are described from specimens collected in southern Chile. Comparison of the morphology of Acellomyia paulseni mapuche (Coscarón & Philip) stat.nov. indicate that they should be elevated to species rank. A key to species of Acellomyia is provided and diagnostic characters are illustrated. 

Two new species segregated from Hymenophyllum tunbrigense (Hymenophyllaceae) in southern South America, based on morphological, anatomical, molecular and distributional evidence

Phytotaxa ◽  
2017 ◽  
Vol 303 (3) ◽  
pp. 218 ◽  
Author(s):  
CRISTIAN LARSEN ◽  
MARCELO D. ARANA ◽  
JUAN M. ACOSTA ◽  
M. MÓNICA PONCE
Keyword(s):  
New Species ◽  
South America ◽  
Endemic Species ◽  
Southern Cone ◽  
Southern South America ◽  
Two New Species ◽  
Mountain System ◽  
Endemic Taxon ◽  
First Time ◽  
North Western

The cosmopolitan species Hymenophyllum tunbrigense was traditionally represented in southern South America by two allopatric varieties: H. tunbrigense var. tunbrigense in the Andean Patagonian forests of Argentina and Chile, and H. tunbrigense var. cordobense, an endemic taxon restricted to the mountain system of central and north-western Argentina. Given the diagnosable differences between these two taxa, and between these taxa and the European and African entity, based on morphological, anatomical, molecular, ecological and distributional evidence, we exclude H. tunbrigense for Southern Cone, propose to revalidate the name Hymenophyllum asperulum for the species present in the Magellanic and Valdivian forests and elevate H. tunbrigense var. cordobense to species rank. We consider these two taxa as endemic species, closely related to the widespread H. tunbrigense. We also cite Hymenophyllum cordobense for first time for the flora of Bolivia.

scholarly journals Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil

2004 ◽  
Vol 2 (2) ◽  
pp. 55-60 ◽  
Author(s):  
José Francisco Pezzi da Silva
Keyword(s):  
New Species ◽  
South America ◽  
Southern Brazil ◽  
Body Depth ◽  
Southern South America ◽  
Two New Species ◽  
Fin Rays ◽  
Eye Diameter ◽  
Fin Length ◽  
Pelvic Fin

Two new species of Bryconamericus are described from southern Brazil: B. patriciae, from the headwaters of rio Pelotas (rio Uruguay drainage) and rio das Antas (laguna dos Patos drainage) and B. ecai from lower rio Taquari drainage. Bryconamericus patriciae differs from other Bryconamericus species from southern South America, by the following combination of characters: body depth (25.5-30.3% SL); head length (25.2-27.6% SL); pelvic-fin length (11.0-14.4% SL); branched anal-fin rays 14-18; teeth of outer row of premaxilla regularly implanted; teeth of inner row of premaxilla pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins. Bryconamericus ecai differs from other Bryconamericus species from southern South America by the following combination of characters: body depth (33.1-36.9% SL); eye diameter (31.1-33.9% HL); snout length (26.8-32.4% HL); branched anal-fin rays 15-18; teeth of outer row of premaxilla regularly implanted; teeth of inner row of premaxilla tricuspid or pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins.

Further contributions to the lichen genus Leptogium in southern South America

2013 ◽  
Vol 45 (6) ◽  
pp. 787-789 ◽  
Author(s):  
Per M. JØRGENSEN ◽  
William R. BUCK
Keyword(s):  
New Species ◽  
South America ◽  
Distinct Species ◽  
Southern South America ◽  
Two New Species ◽  
Wet Rocks ◽  
Folded Structures ◽  
Cape Horn

AbstractTwo new species in Leptogium are described and illustrated from the Cape Horn region: L. auriculatum and L. adnatum both grow on wet rocks, the former by a river, the latter on coastal rocks. In addition to the special habitat the latter is easily identified on the closely appressed thallus which centrally often have densely packed squamules in intricately folded structures. Leptogium auriculatum is characterized by the regular, rounded lobes with thickened margins carrying granular isidia. The total number of Leptogium species known in the region at present is 19, including the previously doubtful L. patagonicum Zahlbr., which is here confirmed as a distinct species.

On Psoroma Species from the Southern Hemisphere with Cephalodia Producing Vegetative Dispersal Units

1999 ◽  
Vol 31 (4) ◽  
pp. 341-347 ◽  
Author(s):  
Per M. Jørgensen ◽  
M. Wedin
Keyword(s):  
New Species ◽  
New Zealand ◽  
South America ◽  
Southern Hemisphere ◽  
Strategy Development ◽  
Southern South America ◽  
Two New Species ◽  
Successful Establishment

AbstractTwo new species of Psoroma with unusual cephalodia are described: P. echinaceum with isidiate cephalodia, from southern South America and P. geminatum with fragile phyllidiate cephalodia, from New Zealand and Australia. These are additional to two previously described species producing dispersal units on their cephalodia, P. durietzii P.James & Henssen (with soredia) and P. aphthosum, Vain. (syn. nov. P. dimorphum Malme) (with isidia). This is a strategy development that ensures successful establishment of new thalli.

Description of a new genus of Elaphidiini with two new species (Coleoptera, Cerambycidae, Cerambycinae)

Zootaxa ◽  
2017 ◽  
Vol 4247 (3) ◽  
pp. 346
Author(s):  
ANTONIO SANTOS-SILVA ◽  
MARIA HELENA M. GALILEO
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
South America ◽  
New Genus ◽  
Generic Level ◽  
Southern South America ◽  
Two New Species

Elaphidiini Thomson, 1864 is a large tribe of Cerambycidae composed of 92 genera with species distributed from Canada to southern South America. Lingafelter (1998) performed a generic level phylogenetic analysis of the tribe and provided a key to the known genera. According to Lingafelter, Elaphidiini is characterized as follows: mesally-spined antenna (lost in some taxa), narrow metepisternum with a centrally positioned keel, strongly sclerotized below and membranous above; prosternal process between procoxae slightly to strongly expanded at apex (rarely linear and unexpanded); terminal palpomeres much wider at apex than base; and coarsely faceted eyes (with few exceptions). 

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

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