scholarly journals A taxonomic revision of the Southern South American species of the genus Fannia Robineau-Desvoidy (Diptera: Fanniidae)

2007 ◽  
Vol 47 (24) ◽  
Author(s):  
Martha Cecilia Dominguez
Keyword(s):  
Taxonomic Revision ◽  
South American ◽  
South American Species

Taxonomic Revision of Euphrasia (Orobanchaceae) in South America

2021 ◽  
Vol 106 ◽  
pp. 392-423
Author(s):  
Ana Verónica Ortiz ◽  
Pablo Moroni ◽  
Fabiana Mirra ◽  
Rosa María Villanueva Espinoza ◽  
Nataly O'Leary
Keyword(s):  
South America ◽  
Native Species ◽  
Morphological Study ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
South American ◽  
South American Species ◽  
Arduous Task ◽  
First Time

Morphological boundaries between South American species of Euphrasia L. are controversial, rendering determination of specimens an arduous task. In this context, a comprehensive taxonomic revision of Euphrasia in South America is here provided for the first time. This study, based upon a classical morphological study of ca. 400 herbarium specimens, supports the recognition of eight species and one subspecies distributed in the Andean regions of Argentina, Bolivia, and Chile. From among native species, six belong to section Trifidae Benth. and one to the monotypic section Paradoxae Pugsley, endemic to Juan Fernández Islands; one adventive species, E. officinalis L., belongs to the section Euphrasia. The previously misunderstood presence of E. cockayniana Petrie is here untangled, and, consequently, the species is excluded from South America. A key to all Euphrasia taxa in South America, plus morphological descriptions, nomenclature items, geographical distribution and maps, habitat notes, illustrations, photographs, and discussion notes are included for the nine taxa. Eleven names are here synonymized, and lectotypes are designated for E. andicola Benth., E. debilis Wettst., E. flavicans Phil., E. intricata Phil., and E. philippii Wettst. Euphrasia andicola is reported for the first time for Argentina. This collaborative effort will represent a baseline for further investigations on Euphrasia in South America.

A taxonomic revision of Zamia montana and Zamia oligodonta, with notes on their conservation status

Phytotaxa ◽  
2015 ◽  
Vol 192 (4) ◽  
pp. 279
Author(s):  
Michael Calonje ◽  
GUSTAVO MORALES ◽  
CRISTINA LÓPEZ-GALLEGO ◽  
FRANCISCO JAVIER ROLDÁN
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Field Studies ◽  
South American ◽  
South American Species ◽  
Western Cordillera ◽  
Morphological Differences ◽  
High Elevations

The taxonomy of Zamia montana and Z. oligodonta, two poorly understood species occurring at high elevations in the Western Cordillera of Colombia, is discussed. Zamia oligodonta was recently synonymized under Z. montana, but information derived from recent field studies is provided showing the two species are quite distinct. A treatment of both species is presented, including discussion of the major morphological differences between them and also between other South American species with prominently-veined leaflets. The conservation status of both species is evaluated.

Taxonomic Revision of South American Species of the Genus Acacia Subgenus Acacia (Fabaceae: Mimosoideae)

2000 ◽  
Vol 25 (4) ◽  
pp. 588 ◽  
Author(s):  
John E. Ebinger ◽  
David S. Seigler ◽  
H. David Clarke
Keyword(s):  
Taxonomic Revision ◽  
South American ◽  
South American Species

A taxonomic revision of the South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini)

Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 61-86
Author(s):  
EVERTON E. NAZARÉ-SILVA ◽  
FERNANDO A.B. SILVA
Keyword(s):  
New Species ◽  
Literature Review ◽  
South America ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Valid Species ◽  
South American ◽  
The South ◽  
South American Species ◽  
Three New Species

The South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) are reviewed. In this work, 10 valid species and two subspecies are recognized for the genus. Among these species, five are recorded in South America, including three new species: P. perplexus (LeConte, 1847), P. xanthurus (Blanchard, 1847), P. vazdemelloi new species, P. pantanensis new species, and P. chaquensis new species. A lectotype is designated for P. xanthurus (Blanchard, 1847). In this revision, each species is analyzed as follows: a detailed literature review, an identification key for the South American species, a diagnosis, descriptions, illustrations of key morphological characters, list of examined material, and geographic distribution.  

scholarly journals Morfología comparada de diez taxones del género Celtis (Cannabaceae) del Cono Sur Sudamericano

2021 ◽  
Vol 9 (1) ◽  
pp. 217-244
Author(s):  
Débora C. Chamorro ◽  
Henrique B. Zamengo ◽  
Virginia Y. Mogni ◽  
Roseli B. Torres ◽  
André L. Gaglioti ◽  
...  
Keyword(s):  
Taxonomic Revision ◽  
Morphological Plasticity ◽  
Morphological Characters ◽  
Morphological Description ◽  
South American ◽  
South American Species ◽  
Tropical Regions ◽  
Specimen Collection ◽  
Morphological Differences

The genus Celtis L. (Cannabaceae) comprises around 73 species distributed in temperate and tropical regions of both hemispheres. Most South American species belong to the subgenus Mertensia Planch., and they are characterized by showing high morphological plasticity. A recent taxonomic revision of this group was carried out with an excessively reductionist criterion regarding the number of accepted species and that does not clearly reflect the morphological differences among them. In order to contribute to the correct delimitation of the specific entities, a morpho-descriptive approach is presented for ten taxa of the genus Celtis (C. brasiliensis, C. chichape, C. clausseniana, C. fluminensis, C. pallida var. pallida, C pallida var. discolor, C. serratissima, C. spinosa, C. spinosissima and C. tala) growing in South American Southern Cone. The morphology was analyzed through the use of a stereomicroscope and/or the tpsDig program for digital images of specimens. As a result, a key is provided for the determination of the aforementioned species and a detailed morphological description of the vegetative (habit, bark, branches, spines, brachyblasts, indumentum and leaves) and reproductive structures (inflorescences, flowers, fruits and endocarp -pyrene-). In addition, a specimen collection guide is proposed with a list of the main morphological characters that should be observed in the field, to facilitate future identifications.

A taxonomic revision of South American species of the seed-harvester ant genus Pogonomyrmex (Hymenoptera: Formicidae). Part II

Zootaxa ◽  
2021 ◽  
Vol 5033 (1) ◽  
pp. 1-230
Author(s):  
ROBERT A. JOHNSON
Keyword(s):  
New Species ◽  
Natural History ◽  
Taxonomic Revision ◽  
Junior Synonym ◽  
South American ◽  
South American Species ◽  
Distribution Maps ◽  
Harvester Ant ◽  
Senior Synonym ◽  
Ergatoid Males

This paper provides a taxonomic revision and reviews natural history for 35 South American species of the seed-harvesting ant genus Pogonomyrmex. Species treated herein mostly comprise the P. rastratus-group; four species are revived from synonomy, three taxa are elevated from subspecies to species, five taxa are synonymized, and 20 new species are described. The following taxa are revived from synonomy: P. intermedia Menozzi, P. semistriata Emery, P. spinolae Emery, and P. weiseri Santschi. The following taxa are raised from subspecies to species: P. leonis Kusnezov, P. pulchellus Santschi, and P. sanmartini Kusnezov. The following new synonymies are proposed, with the senior synonym listed first, and the junior synonym(s) in parentheses: P. carbonarius Mayr (= P. kusnezovi Cuezzo & Claver, = P. weiseri var. neuquensis Santschi, = P. variabilis Santschi); P. vermiculatus Emery (= P. vermiculatus var. chubutensis Forel, = P. vermiculatus var. jorgenseni Forel). The following new species are described: P. apterogenos, P. araucania, P. atacama, P. bolivianus, P. colca, P. cusquena, P. excelsior, P. forelii, P. granulatus, P. lagunabravensis, P. loaensis, P. mapuche, P. maulensis, P. pichachen, P. propinqua, P. santschii, P. strioligaster, P. tafi, P. varicolor, and P. wilsoni. One species treated herein has brachypterous queens (P. atacama), one species has dimorphic queens (winged and brachypterous in P. longibarbis), and two species have ergatoid (permanently wingless) queens and ergatoid males (P. apterogenos, P. laguanbravensis); the latter two are the only known ant species in which both sexual castes are only ergatoid. I also provide keys for workers and queens (in English and Spanish), diagnoses for males, photographs of known castes, distribution maps, and a summary of known biology.  

A taxonomic revision of the Colombian species of Urosigalphus Ashmead (Hymenoptera: Braconidae)

Zootaxa ◽  
2012 ◽  
Vol 3411 (1) ◽  
pp. 1
Author(s):  
ARIAS-PENNA _ ◽  
DIANA CAROLINA ◽  
JAMES B. WHITFIELD
Keyword(s):  
New Species ◽  
Parasitoid Wasp ◽  
Taxonomic Revision ◽  
South American ◽  
Malaise Trap ◽  
South American Species ◽  
Lowland Forest ◽  
Seasonally Flooded ◽  
Almost All ◽  
First Time

The Colombian species of parasitoid wasp Urosigalphus are revised for the first time, based on specimens deposited inmuseums. Almost all the material was collected by Malaise trap in the understory stratum of the seasonally flooded forest(varzea), submontane forest, and lowland forest, located in protected areas. 23 new species are described and illustrated:U. aliuslongitudinis Arias-Penna, n. sp., U. amandae Arias-Penna, n. sp., U. carinaverticis Arias-Penna, n. sp., U.cavusscuti Arias-Penna, n. sp., U. colombiensis Arias-Penna, n. sp., U. colordissimilis Arias-Penna, n. sp., U.faciescarinae Arias-Penna, n. sp., U. fimbriaeplanae Arias-Penna, n. sp., U. frequens Arias-Penna, n. sp., U. inaequalisArias-Penna, n. sp., U. macarenaensis Arias-Penna, n. sp., U. margo Arias-Penna, n. sp., U. metanotuminsignum Arias-Penna, n. sp., U. monticola Arias-Penna, n. sp., U. notauliremoti Arias-Penna, n. sp., U. ocellivicini Arias-Penna, n. sp.,U. ordoincompositus Arias-Penna, n. sp., U. sharkeyi Arias-Penna, n. sp., U. singularis Arias-Penna, n. sp., U. taniaeArias-Penna, n. sp., U. tredecimantennae Arias-Penna, n. sp., U. triacarinae Arias-Penna, n. sp., and U. whitfieldi AriasPenna, n. sp. An updated key to the known South American species is presented.

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