Taxonomic revision of the Square-tailed Drongo species complex (Passeriformes: Dicruridae) with description of a new species from western Africa

Zootaxa ◽  
2018 ◽  
Vol 4438 (1) ◽  
pp. 105 ◽  
Author(s):  
JÉRÔME FUCHS ◽  
MORY DOUNO ◽  
RAURI C.K. BOWIE ◽  
JON FJELDSÅ

We describe a new species of drongo in the Square-tailed Drongo (Dicrurus ludwigii) complex using a combination of biometric and genetic data. The new species differs from previously described taxa in the Square-tailed Drongo complex by possessing a significantly heavier bill and via substantial genetic divergence (6.7%) from its sister-species D. sharpei. The new species is distributed across the gallery forests of coastal Guinea, extending to the Niger and Benue Rivers of Nigeria. We suspect that this taxon was overlooked by previous avian systematists because they either lacked comparative material from western Africa or because the key diagnostic morphological character (bill characteristics) was not measured. We provide an updated taxonomy of the Square-tailed Drongo species complex. 

2008 ◽  
Vol 35 (2) ◽  
pp. 129-146 ◽  
Author(s):  
David G. Chapple ◽  
Geoff B. Patterson ◽  
Dianne M. Gleeson ◽  
Charles H. Daugherty ◽  
Peter A. Ritchie

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 96-110
Author(s):  
JIŘÍ MORAVEC

A new species of the genus Odontocheila Laporte de Castelnau, 1834 is described from Brazil as Odontocheila parafemoralis sp. nov. Along with other species previously treated as subspecies of O. cajennensis (Fabricius, 1787), the new species is classified here as a species of the O. cajennensis species-complex (within the O. cajennensis species-group). It was commonly confused in collections with O. bipunctata (Fabricius, 1792) and O. femoralis Chaudoir, 1860. Specimens from Itaituba, Rio Tapajoz, Pará (the type locality of the new species) were previously considered by the present author to be aberrant adults of O. oseryi (Lucas, 1857) and were also included within the species in the taxonomic revision of the genus (Moravec 2018). A recent examination of numerous specimens from Itaituba has revealed that they represent an undescribed species, which is diagnostically separated from all taxa of the O. cajennensis species-complex. Consequently, it is described here as new to science. Illustrations of the habitus, diagnostic characters and variability of the new species and distinguishing characters of similar species are presented in colour photographs. A revised key to species of the O. cajennensis species-complex (within the complete O. cajennensis species-group) is presented with reference to the taxonomic revision of the genus (Moravec 2018). An essential map of distribution is also given.  


Zootaxa ◽  
2020 ◽  
Vol 4874 (1) ◽  
pp. 1-62
Author(s):  
ASHOK KUMAR MALLIK ◽  
ACHYUTHAN N. SRIKANTHAN ◽  
SAUNAK P. PAL ◽  
PRINCIA MARGARET D’SOUZA ◽  
KARTIK SHANKER ◽  
...  

We carried out a taxonomic revision of Ahaetulla species inhabiting Peninsular India, using a multiple criteria approach (including genetics, morphology, and geography). Our work included populations of the A. nasuta complex (widespread across the entire region, including the Western Ghats), the A. pulverulenta complex (in the Western Ghats, within Peninsular India) and the A. dispar complex (endemic to the Southern Western Ghats) which all revealed undocumented cryptic diversity. Here, we describe five new species and effect nomenclatural changes to some recognised taxa. In the A. nasuta complex, we describe four species from several latitudinal blocks of the Western Ghats and make nomenclatural emendations to the plains populations in the Indian peninsula. We effect nomenclatural change in the A. pulverulenta population of the Western Ghats and describe a new species from the A. dispar group. Our study highlights the use of a multi-criteria approach in unraveling cryptic diversity. This study also reveals a striking case of discordance between morphological and genetic divergence, and the way this is reflected in previous taxonomic and nomenclatural treatments of these populations. 


Phytotaxa ◽  
2013 ◽  
Vol 131 (1) ◽  
pp. 9 ◽  
Author(s):  
Lucas Charles Majure

In the course of a taxonomic revision of Miconia sect. Lima, we discovered a previously undescribed species, Miconia paralimoides, from the Cordillera Central, Dominican Republic. This species is part of the Miconia lima species complex, and is most similar morphologically to Miconia limoides. We illustrate and provide a distribution map of the species, as well as a key to distinguish M. paralimoides from other members of the Miconia lima complex, i.e., species with very well-developed, bulla-based hairs on the adaxial leaf surface, which mostly or completely cover the areoles. 


2019 ◽  
Vol 64 (3) ◽  
pp. 231-252
Author(s):  
J.I.M. Verwijs ◽  
R.W. Bouman ◽  
P.C. van Welzen

Within the morphologically diverse pantropical genus Phyllanthus, many subgenera, sections and subsections are recognized. While most taxonomic revisions often focus on local floras, closely related and often resembling species are not always treated in full. Subgenus Macraea is here revised for the first time over its whole distribution, including an identification key and descriptions of its species with distributions, ecology, uses and vernacular names. The currently acknowledged varieties of Phyllanthus distichus are rejected due to inadequate morphological differences. Phyllanthus panayensis is synonymized with P. lancifolius. Phyllanthus alpestris has now become a variety of P. glaucophyllus because of the resemblance in morphology and distribution. The species complex around Phyllanthus virgatus remains taxonomically difficult, but Phyllanthus virgatus var. gardnerianus and Phyllanthus virgatus var. hirtellus are here recognized on the species level as P. gardnerianus, stat nov. and P. tararae, stat & nom. nov. A new species from the Philippines, Phyllanthus ridsdalei, is described.


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