scholarly journals Integrative Taxonomy, Phylogeny, and New Species of the Weevil GenusOnyxacallesStüben (Coleoptera: Curculionidae: Cryptorhynchinae)

2012 ◽  
Vol 2012 ◽  
pp. 1-22
Author(s):  
Peter E. Stüben ◽  
Jonas J. Astrin

A molecular phylogeny of the western Palearctic weevil genusOnyxacallesStüben, 1999 is presented, combining two mitochondrial genes (COI and 16S) in a Bayesian analysis. Based on molecular data,Onyxacalles pyrenaeusBoheman, 1844 is transferred into the genusKyklioacallesStüben 1999 (K. faustigroup) and—in an integrative taxonomy framework—the interaction between morphology and molecular analysis is illustrated. The species ofOnyxacalless. str. are assigned to three new species groups,O. henoni,O. luigionii, andO. portusvenerisgroups. The distribution of the related species in the Mediterranean area is illustrated with values of COI and 16S p-distances. Three new species are described and distinguished from their related species:Onyxacalles nuraghiStüben sp.n. from Italy (Sardinia),Onyxacalles torreStüben and Astrin sp. n. from France (Corsica) andOnyxacalles vilaeStüben sp. n. from Croatia (Velebit Mts.). A catalogue of all 20 species ofOnyxacallesis given, and a key is finally presented combined with image stacking of the habitus and aedeagus for all species.

Zootaxa ◽  
2010 ◽  
Vol 2662 (1) ◽  
pp. 28 ◽  
Author(s):  
PETER E. STÜBEN ◽  
JONAS J. ASTRIN

A molecular phylogeny of the western Palearctic weevil genus Kyklioacalles Stüben, 1999 is presented, combining two mitochondrial genes (CO1 and 16S) in a Bayesian analysis. Based on molecular data, the validity of the subspecies Kyklioacalles punctaticollis punctaticollis (Lucas, 1849) and Kyklioacalles punctaticollis meteoricus (Meyer, 1909) is discussed and the morphological differentiation of the endophalli and known distributions of both subspecies are verified. Glaberacalles subg. n. (formerly Kyklioacalles punctaticollis-group) and two new species are described, Kyklioacalles atlasicus sp.n. from Morocco and Kyklioacalles plantapilosus sp.n. from Spain. Kyklioacalles berberi (Stüben, 2005), comb. n. and Kyklioacalles olcesei (Tournier, 1873) comb. n. are transferred from Acalles Schoenherr. The molecular results further advocate a transfer of Onyxacalles pyrenaeus (Boheman, 1844) to Kyklioacalles; however this is not supported by morphological evidence. Kyklioacalles almadensis Stüben, 2004 syn. n. (Spain) is synonymized with Kyklioacalles bupleuri Stüben, 2004 (Tunisia). A catalogue of all 40 (sub-)species of Kyklioacalles is given and a key of the species of the subgenus Glaberacalles is presented.


Zootaxa ◽  
2017 ◽  
Vol 4347 (3) ◽  
pp. 511
Author(s):  
CHRIS H.S. WATTS ◽  
STEVEN J.B. COOPER ◽  
KATHLEEN M. SAINT

The phylogenetic relationships of 26 Australian species of Scirtes Illiger, Ora Clark and Exochomoscirtes Pic (Scirtidae) were investigated using adult morphology, particularly male and female genitalia, larval morphology and molecular data from the mitochondrial cytochrome c oxidase subunit I (COI) gene and the nuclear genes elongation factor 1-alpha (EF1- a) and topoisomerase I (TOP1). Four species of Scirtes and one of Ora from Europe, Southeast Asia and Japan were included. The genus Scirtes is shown to be paraphyletic with respect to the genera Ora and Exochomoscirtes. Australian Scirtes were shown to belong to four species groups: Scirtes elegans group (Yoshitomi 2009); S. helmsi group (Watts 2004); S. japonicus group (Nyholm 2002); and S. haemisphaericus group (Yoshitomi 2005). The prehensor and bursal sclerite of 15 species are illustrated as well as habitus illustrations of S. zwicki sp. nov. and S. albamaculatus Watts. Three new species from Australia are described: Scirtes lynnae, S. zwicki and S. serratus spp. nov. Scirtes nehouensis Ruta & Yoshitomi 2010 is synonymised with S. emmaae Watts 2004. Scirtes pygmaeus Watts, 2004 is synonymised with S. pinjarraensis Watts, 2006. Scirtes rutai nom. nov. is proposed as a replacement name for S. beccus Ruta, Kiałka & Yoshitomi, 2014 from Sabah as it is preoccupied by S. beccus Watts, 2004 from Australia. 


2020 ◽  
pp. 1-19
Author(s):  
Luis M. Díaz ◽  
Antonio Cádiz

Cuba has the highest diversity of snakes in the genus Tropidophis, representing 53 % of all the known species. Tropidophis steinleini sp. nov. is described from the eastern region of Cuba, raising the number of species to 17 in this archipelago. The new species is most closely related to T. wrighti, T. spiritus and T. morenoi. We discuss the phylogenetic relationships of this new species and other species of the genus in Cuba, based on molecular data, and classified them within three species groups according to the obtained tree topology.


Phytotaxa ◽  
2016 ◽  
Vol 286 (4) ◽  
pp. 232 ◽  
Author(s):  
K. N.ANIL RAJ ◽  
PATINJAREVEETTIL MANIMOHAN

Three new species of Entoloma belonging to the subgenus Nolanea, E. brunneoumbonatum, E. luteodiscum and E. brunneoapplanatum, are described from Kerala State, India based on morphology and molecular phylogeny. Comprehensive descriptions, photographs, and comparisons with phenetically similar and phylogenetically related species are discussed. The nuclear ribosomal internal transcribed spacer region (ITS) of the three species was sequenced and analyzed. The ITS-based phylogenetic analysis, performed using Maximum Likelihood (ML) method, supported both the novelty of these species and their infrageneric placement within the subgenus Nolanea. A key to the ten species of Entoloma subgenus Nolanea known from India is also provided.


2020 ◽  
Vol 189 (4) ◽  
pp. 1370-1397 ◽  
Author(s):  
Ya-Lian Wang ◽  
Hui-Luo Cao ◽  
Hong-Wei Chen

Abstract Phylogenetic relationships of the two largest species groups in the genus Amiota [the Amiota alboguttata group (29 known and six new species) and the Amiota basdeni group (17 known and three new species)] were reconstructed using two mitochondrial gene sequences (COI and ND2). The paraphyly of the A. alboguttata group was identified based on molecular evidence. The monophyletic A. basdeni group is found to be nested in the A. alboguttata group, rendering the latter paraphyletic. Automatic barcode gap discovery and Bayesian phylogenetics and phylogeography methods were used to assess species limits of the A. alboguttata and A. basdeni groups. The results indicate that most analysed species could be delimited clearly, including nine new species (Amiota beama sp. nov., Amiota cyclophylla sp. nov., Amiota flormontana sp. nov., Amiota obtusa sp. nov., Amiota planiceps sp. nov., Amiota scrobicula sp. nov., Amiota jianjuni sp. nov., Amiota tentacula sp. nov. and Amiota xinglaii sp. nov.), except for some closely related morphospecies. Furthermore, based on the highly biased distributions of these two groups, southwestern China is hypothesized to be a possible centre of origin and diversification for Amiota in East Asia.


Phytotaxa ◽  
2014 ◽  
Vol 180 (1) ◽  
pp. 1 ◽  
Author(s):  
Alfredo Justo ◽  
Ekaterina Malysheva ◽  
Tatiana Bulyonkova ◽  
Else C Vellinga ◽  
Gerry Cobian ◽  
...  

The taxonomy and phylogeography of Pluteus section Pluteus in the Holarctic region was investigated using morphological and molecular data. Over 300 specimens spanning the major areas of boreal and temperate forests of the Northern Hemisphere were studied and nrITS and tef1 were obtained for phylogenetic analyses. In order to stabilize the taxonomy of the group all available type collections were studied and, if possible, sequenced. A total of 26 species occurring in Eurasia and North America were recovered in the phylogenetic analyses. Twelve species are described as new (Pluteus rangifer, P. elaphinus, P. hibbettii, P. eos, P. orestes, P. methvenii, P. shikae, P. kovalenkoi, P. leucoborealis, P. sepiicolor, P. oreibatus, P. atrofibrillosus), one is provisionally named (P. parilis) and one variety is raised to species rank (P. americanus). In many cases separation of the species based on morphology alone is challenging. In general, tef1 distinguishes the species better than nrITS. Structured infraspecific genetic variation was detected in the nrITS phylogenies for five species (P. atromarginatus, P. hibbettii, P. orestes, P. primus and P. shikae) and in the tef1 phylogenies for P. cervinus. Phylogeographic patterns are strikingly different among the species in this group and include widespread Holarctic species, exclusively Palearctic, putative disjuncts and endemics in each Holarctic subregion (Eastern/Western Palearctic and Nearctic). Identification keys are provided for each subregion.


2019 ◽  
Vol 27 (3) ◽  
pp. 165-195
Author(s):  
Charlotte M. Taylor

Psychotria subg. Heteropsychotria Steyerm. has been shown by morphological and molecular analyses to be polyphyletic. Most of its species, including its type, belong to Palicourea Aubl. (“Pal.”). Thirty-two species of this group are reviewed here, and 17 species in Psychotria L. are transferred to Palicourea and one to Rudgea Salisb. Two replacement names, Pal. agudeloana C. M. Taylor and Pal. tabayensis C. M. Taylor, are published. Taxonomic studies here clarify circumscriptions of similar, often-confused species for several distinctive species groups found variously in Mesoamerica and the Andes: the Palicourea aschersonianoides group, the Palicourea galeottiana group, the Palicourea sulphurea group, and the Palicourea tristis group. Three new species of Palicourea are described: Pal. aschersonianula C. M. Taylor, Pal. gonzaleziana C. M. Taylor, and Pal. wachterae C. M. Taylor. Nineteen names are newly typified, and infrageneric classifications are noted for the species of Palicourea studied.


Nematology ◽  
2016 ◽  
Vol 18 (5) ◽  
pp. 517-536 ◽  
Author(s):  
Sergio Álvarez-Ortega ◽  
Thi Anh Duong Nguyen ◽  
Joaquín Abolafia ◽  
Thi Thanh Tam Vu ◽  
Michael Bonkowski ◽  
...  

Three new species of the genus Sectonema collected from natural habitats in Vietnam are studied, described and illustrated, including line drawings, LM and/or SEM pictures. Sectonema birrucephalum sp. n. is characterised by its 2.73-4.35 mm long body, lip region 18-20 μm broad and offset by deep constriction, odontostyle 10.0-11.5 μm long on its ventral side, 659-989 μm long neck, pharyngeal expansion occupying 63-68% of total neck length, uterus a simple tube, 221-277 μm long, pars refringens vaginae present, V = 54-56, tail short (31-43 μm, c = 85-111, c′ = 0.6-0.8) and rounded, spicules 72-75 μm long, and four or five irregularly spaced ventromedian supplements beyond the range of the spicules. Sectonema buccociliatum sp. n. is distinguished by its 2.00-2.46 mm long body, lip region offset by constriction, 19-20 μm broad and bearing perioral cilia-like structures, odontostyle 13-14 μm long at its ventral side, 530-625 μm long neck, pharyngeal expansion occupying 62-69% of total neck length, uterus a simple tube, 116-152 μm long, pars refringens vaginae present, V = 56-62, tail short (23-31 μm, c = 72-104, c′ = 0.6-0.8) and rounded, spicules 56-68 μm long, and 3-5 spaced and weakly developed ventromedian supplements beyond the range of the spicules. Sectonema ciliatum sp. n. is characterised by its 2.79-3.13 mm long body, lip region offset by constriction, 21-22 μm broad and bearing perioral cilia-like structures, odontostyle 14-15 μm long at its ventral side, 699-722 μm long neck, pharyngeal expansion occupying 60% of total neck length, uterus a simple tube, 201-244 μm long, pars refringens vaginae present, V = 52-53, tail short (33-35 μm, c = 82-92, c′ = 0.6-0.7) and rounded, spicules 70-72 μm long, and three or four spaced and weakly developed ventromedian supplements beyond the range of the spicules. Molecular data obtained for S. ciliatum sp. n. and the derived evolutionary tree show a close phylogenetic relationship with other species of the genus.


Zootaxa ◽  
2021 ◽  
Vol 5048 (3) ◽  
pp. 435-443
Author(s):  
RACHEL D. GLYNN ◽  
ANDREW EDWARD Z. SHORT

The Neotropical water scavenger beetle genus Chasmogenus Sharp, 1882 is a diverse lineage with 34 described species. Here, three new species from the southwestern margin of the Guiana Shield are described using an integrative approach combining adult morphology and molecular data: Chasmogenus clinatus sp. n. (Brazil: Amazonas, Venezuela: Amazonas), C. gironae sp. n. (Venezuela: Amazonas), and C. inpa sp. n. (Brazil: Amazonas). Examination of the male genitalia is essential for confident identifications and thus unassociated females may prove extremely difficult to identify. New distributional records in Brazil for C. acuminatus Smith & Short, 2020 are provided as well as habitus images of newly described species and an updated key to the species from Venezuela, Suriname, Guyana, French Guiana and northern Brazil.  


Zootaxa ◽  
2021 ◽  
Vol 5061 (2) ◽  
pp. 340-352
Author(s):  
MARCOS FIANCO ◽  
OSCAR J. CADENA-CASTAÑEDA ◽  
NEUCIR SZINWELSKI ◽  
LUIZ R. R. FARIA

Three new species of Anaulacomera are described, Anaulacomera (Anaulacomera) mariellae sp. n. and Anaulacomera (Anallomes) arlindoi sp. n., belonging respectively to the Inermis and Lanceolata species group, and Anaulacomera angelinae sp. n., placed as incertae sedis. The individuals were collected at the Iguaçu National Park and adjacent small fragments of Atlantic Forest, in southwestern Paraná state, Brazil. The description was based on external morphology of males. We also present distribution maps for the species of the Inermis and the Lanceolata species groups.  


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