scholarly journals Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island

ZooKeys ◽  
2021 ◽  
Vol 1061 ◽  
pp. 75-86
Author(s):  
Michele Rossini ◽  
Fernando Z. Vaz-de-Mello ◽  
Olivier Montreuil ◽  
Nicholas Porch ◽  
Sergei Tarasov

We describe a new species of dung beetle, Epactoides giganteussp. nov., from a single female specimen allegedly collected in the 19th century on Réunion island and recently found at the Muséum national d’Histoire naturelle, Paris. This species differs from other species of Epactoides by larger size and a set of other distinctive morphological characters. Epactoides giganteussp. nov. is the first native dung beetle (Scarabaeinae) of Réunion, and its discovery expands the known area of distribution of the genus Epactoides, which was hitherto believed to be endemic to Madagascar. Like other taxa from Madagascar and peripheral islands (e.g., Comoro, Seychelles, Mascarenes), E. giganteussp. nov. may have reached Réunion by over-water dispersal. Given the rapid loss of biodiversity on Réunion island and the fact that no additional specimens were re-collected over the last two centuries, it is very likely that E. giganteussp. nov. has gone extinct. However, we have unconfirmed evidence that the holotype of E. giganteussp. nov. might be a mislabeled specimen from Madagascar, which would refute the presence of native dung beetles on Réunion. We discuss both hypotheses about the specimen origin and assess the systematic position of E. giganteussp. nov. by examining most of the described species of Madagascan Epactoides. Additionally, we provide a brief overview of the dung beetle fauna of Mascarene Archipelago.

2015 ◽  
Vol 47 (5) ◽  
pp. 323-334 ◽  
Author(s):  
Didier Masson ◽  
Michel N. Benatti ◽  
Emmanuël Sérusiaux

AbstractBulbothrix johannis is described as new to science. The species is morphologically similar to the South American Bulbothrix pseudofungicola Benatti & Marcelli but has wider lobes, laminal ciliate isidia which frequently develop into phyllidia, larger cilia and rhizines, and longer ascospores. This epiphytic species occurs fairly frequently in the cloud forests and montane thickets on Réunion Island (Mascarene archipelago). The comparison of B. johannis with morphologically and chemically similar species shows that several different African taxa are currently grouped under the widely used but problematic name B. suffixa (Stirt.) Hale.


ZooKeys ◽  
2020 ◽  
Vol 962 ◽  
pp. 123-137
Author(s):  
Alexandra Magro ◽  
Julissa Churata-Salcedo ◽  
Emilie Lecompte ◽  
Jean-Louis Hemptinne ◽  
Lucia M. Almeida

We report here a new species belonging to Nephus (Nephus) Mulsant. Nephus (Nephus) apoloniasp. nov. was collected in the Reunion Island (Mascarene Archipelago, Indian Ocean). We describe this new species and redescribe and illustrate three other Nephus species already known from Reunion: Nephus (Nephus) oblongosignatus Mulsant, 1850, Nephus (Geminosipho) reunioni (Fürsch, 1974) and Nephus (Nephus) voeltzkowi Weise, 1910. Furthermore, we present a phylogenetic tree for these four species and calculate the genetic distances between them, using high-throughput DNA sequencing of the mitochondrial genome. The similar external morphology of N. apoloniasp. nov. and N. voeltzkowi very probably explains why individuals from the first species have been mistakenly identified as the latter and were not recognized as different until now. Other than external and genitalia traits, the present study provides molecular evidence confirming these are indeed two different species.


Phytotaxa ◽  
2013 ◽  
Vol 119 (1) ◽  
pp. 21 ◽  
Author(s):  
GILLES GASSIOLE ◽  
RENÉ LE COHU ◽  
MICHEL COSTE

Recent survey of the epilithic diatoms in the running waters of Réunion Island led to the discovery of a new species of Achnanthidium. Achnanthidium palmeti sp. nov. belongs to the group of Achnanthidium taxa with terminal raphe fissures curved to the same side of the valve. The new species differs from other taxa in this group by a higher stria density and the areolae morphology along the axial area; moreover, apart from Achnanthidium latecephalum H. Kobayasi, A. palmeti sp. nov. is the only species having raphe vestiges. The new species was found in oligotrophic waters with very low conductivity and circumneutral pH. 


Zootaxa ◽  
2018 ◽  
Vol 4403 (3) ◽  
pp. 540 ◽  
Author(s):  
GABRIEL E. RAMOS-TAFUR

A new species of deep water alpheid shrimp, Alpheus luiszapatai sp. nov., from Arusí, Chocó, Pacific coast of Colombia is described. The single female known was collected between the discarded bycatch of deep water shrimp trawls dedicated to the commercial fisheries of the “coliflor” shrimp Solenocera spp. This new species is placed putatively in the Alpheus brevirostris (Olivier, 1811) species group, and share some external morphological characters with Alpheus hephaestus Bracken-Grissom & Felder, 2014. It can be differentiated by the shape and ornamentation of major and minor chelipeds, the propodi and dactyli of third to fifth pereopods, the diaresis of uropodal exopod, the length of the rostral carina, color in life and bathymetric distribution. Additional comparison with another congeners pertaining to this species group complex from the eastern Pacific, western Atlantic and other oceanographic regions is discussed. A key for Alpheus brevirostris species group from the eastern Pacific is presented. 


2006 ◽  
Vol 97 (6) ◽  
pp. 965-974 ◽  
Author(s):  
CLAIRE MICHENEAU ◽  
JACQUES FOURNEL ◽  
THIERRY PAILLER

1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.


Zootaxa ◽  
2011 ◽  
Vol 2734 (1) ◽  
pp. 63 ◽  
Author(s):  
ARTHUR ANKER

A miniature alpheid shrimp, Leslibetaeus caribbaeus n. sp., is described on the basis of a single female specimen collected in Sandy Bay, Tobago, in 1992. The new species is closely related to L. coibita Anker, Poddoubtchenko & Wehrtmann, 2006 from the Pacific coast of Panama, the type species and the only other known species of Leslibetaeus Anker, Poddoubtchenko & Wehrtmann, 2006, differing from it in several morphological characters. With the discovery of L. caribbaeus n. sp., Leslibetaeus becomes a genus with transisthmian (= amphi-American) distribution. In addition, L. coibita is reported for the first time since original description and its range is extended by 400 km southwards. The generic diagnosis of Leslibetaeus is slightly emended.


Phytotaxa ◽  
2019 ◽  
Vol 422 (2) ◽  
pp. 144-156
Author(s):  
LING-LING LIU ◽  
JING YANG ◽  
NING-GUO LIU ◽  
YA-YA CHEN ◽  
XIAO-XIA GUI ◽  
...  

During a survey of freshwater fungi in Guizhou Province, China, a collection from a submerged decaying twig in Baihua Lake was identified as a new species of Sporidesmium sensu lato based on morphological characters and phylogenetic analyses of combined LSU, SSU, ITS, TEF1α and RPB2 sequence data. Phylogenetic analyses supported its placement in Sordariomycetes but the fungus grouped distant from Sporidesmium sensu stricto, and its ordinal or familial position within the class remained inconclusive. Sporidesmium guizhouense sp. nov. is introduced with an illustrated account and notes on its taxonomy, phylogeny and systematic position are provided.


Zootaxa ◽  
2019 ◽  
Vol 4544 (2) ◽  
pp. 251
Author(s):  
SAMADHAN PHUGE ◽  
K.P. DINESH ◽  
RAMNATH ANDHALE ◽  
KALYANI BHAKARE ◽  
RADHAKRISHNA PANDIT

In the recent past the systematic position and taxonomy of genus Fejervarya, Bolkay is undergoing changes in its systematic position due to fairly good amount of phylogenetic resolution, cryptic morphological characters and lack of systematic sampling for phylogenetic studies across the range of distribution. In our sampling in the northern Western Ghats, we encountered a new lineage sister to the phylogenetic cluster which comprises the 'Rufescens complex'. This new lineage is described here as new species Fejervarya marathi sp. nov. based on distinctness in a combination of morphological characters, genetic distance and geography. The problems in morphological groupings for the Fejervarya frogs of the Western Ghats in the recent studies are discussed with the sub-clade composition based on geography in the phylogenetic tree. 


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