scholarly journals Kaindipsocinae is a sister taxon to the rest of Psocidae (Insecta:Psocodea:'Psocoptera'

2011 ◽  
Vol 25 (2) ◽  
pp. 81 ◽  
Author(s):  
Kazunori Yoshizawa ◽  
Emilie Bess ◽  
Kevin P. Johnson
Keyword(s):  
Strong Support ◽  
Molecular Data ◽  
Species Group ◽  
Sister Taxon ◽  
Sister Relationship ◽  
Systematic Status ◽  
Data Support ◽  
Morphological And Molecular Data

The systematic status of Kaindipsocinae (formerly Kaindipsocini) is revised based on morphology of the male terminalia and on molecular data. The genera Clematostigma, Lasiopsocus and Tanystigma are newly assigned to this subfamily. The ‘Blaste’ lunulata species-group is also placed within Kaindipsocinae and is probably closest to Kaindipsocus. Both morphological and molecular data provide strong support for monophyly of Kaindipsocinae and molecular data support a sister relationship between this subfamily and the rest of Psocidae.

First record of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from Vietnam with description of a new species

Zootaxa ◽  
2021 ◽  
Vol 4969 (3) ◽  
pp. 492-510
Author(s):  
DZUNG TRUNG LE ◽  
SALY SITTHIVONG ◽  
TUNG THANH TRAN ◽  
L. LEE GRISMER ◽  
TRUONG QUANG NGUYEN ◽  
...  
Keyword(s):  
New Species ◽  
First Record ◽  
Molecular Data ◽  
Species Group ◽  
Molecular Analyses ◽  
Hind Limbs ◽  
Morphological And Molecular Data ◽  
Dorsal Pattern ◽  
A New Species ◽  
Dorsal Tubercle

A new species of the genus Cyrtodactylus is described from Dien Bien Province, northwestern Vietnam based on morphological and molecular data. Cyrtodactylus ngati sp. nov. can be distinguished from remaining congeners by the following combination of characters: maximum SVL 69.3 mm; dorsal pattern consisting of six dark irregular transverse bands between limb insertions; inter-supranasals one; dorsal tubercles present on occiput, body, hind limbs and on first half of tail; 17–22 irregular dorsal tubercle rows at midbody; lateral folds clearly defined, with interspersed tubercles; 32–38 ventral scales between ventrolateral folds; 13 precloacal pores separated by a diastema of 5/5 poreless scales from a series of 7/7 femoral pores in enlarged femoral scales; precloacal and femoral pores absent in females; 1–3 postcloacal tubercles on each side; transversely enlarged median subcaudal scales absent. In the molecular analyses, the new species is shown to be the sister taxon to C. interdigitalis from Thailand. This is the 47th species of the genus Cyrtodactylus and the first member of the C. brevipalmatus species group recorded from Vietnam. 

Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae)

Zootaxa ◽  
2018 ◽  
Vol 4401 (1) ◽  
pp. 1 ◽  
Author(s):  
ROGER A. BURKS ◽  
JOHN M. HERATY ◽  
CHRYSALYN DOMINGUEZ ◽  
JASON L. MOTTERN
Keyword(s):  
Biological Control Agent ◽  
Sister Group ◽  
Molecular Data ◽  
Species Group ◽  
Control Agent ◽  
Wasmannia Auropunctata ◽  
Secondary Infections ◽  
Tropical America ◽  
Morphological And Molecular Data ◽  
The Tropics

Twenty-nine species are recognized in the Orasema stramineipes species group, including 22 new species in what is now the most diverse species group of the New World ant-parasitoid genus Orasema Cameron. Orasema aenea Gahan syn. n. is synonymized with O. freychei (Gemignani), the holotype of which has been rediscovered. Orasema smithi Howard syn. n. is synonymized with Orasema minutissima Howard. Orasema violacea Gemignani syn. n. and its replacement name Orasema gemignanii De Santis syn. n. are synonymized with O. worcesteri (Girault). Twenty-two species are described as new: O. arimbome Dominguez, Heraty & Burks n. sp., O. carchi Heraty, Burks & Dominguez n. sp., and the following 20 species by Burks, Heraty & Dominguez: O. chunpi n. sp., O. cozamalotl n. sp., O. evansi n. sp., O. hyarimai n. sp., O. kaspi n. sp., O. kulli n. sp., O. llanthu n. sp., O. llika n. sp., O. mati n. sp., O. nyamo n. sp., O. pirca n. sp., O. pisi n. sp., O. qillu n. sp., O. qincha n. sp., O. rikra n. sp., O. taku n. sp., O. tapi n. sp., O. torrensi n. sp., O. woolleyi n. sp., and O. yaax n. sp. The stramineipes-group has much greater diversity in tropical America than outside the tropics, and is much more diverse than its sister-group, the susanae-group, which is mainly present in temperate regions of Argentina. A hypothesis of phylogenetic relationships is proposed based on an analysis of 28S-D2 rDNA and cytochrome oxidase I (COI) for 14 stramineipes-group species. Species concepts were established using both morphological and molecular data. Most species in the stramineipes-group have a tropical distribution, with only a few species in temperate regions. Ant hosts for the group include Pheidole Westwood, Wasmannia Forel, and possibly Solenopsis Westwood (Formicidae: Myrmicinae). Orasema minutissima is a common parasitoid of Wasmannia auropunctata Roger in the Caribbean and has the potential to be a biological control agent in other areas of the world. Two distinct size morphs are recognized for O. minutissima, which are correlated with attacking either Wasmannia (small morph) or different castes of Pheidole (medium to large size morphs). Some species of Orasema have been regarded as pests due to scarring or secondary infections of leaves or fruit of banana, yerba mate or blueberry, but outbreaks are rare and the threat is usually temporary. 

Systematics and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda : Brachyura : Sesarmidae) based on morphological and molecular data

2018 ◽  
Vol 32 (1) ◽  
pp. 196 ◽  
Author(s):  
Adnan Shahdadi ◽  
Peter J. F. Davie ◽  
Christoph D. Schubart
Keyword(s):  
Genetic Data ◽  
Morphological Characters ◽  
Molecular Data ◽  
Geographic Range ◽  
The Philippines ◽  
Mitochondrial Genes ◽  
Width Ratio ◽  
Sister Relationship ◽  
Mangrove Crabs ◽  
Morphological And Molecular Data

Parasesarma semperi (Bürger, 1893) was first described from Bohol in the Philippines and is considered to be widely distributed in Southeast Asia. Parasesarma longicristatum (Campbell, 1967) was originally described as a subspecies of P. semperi from Queensland, Australia, and later recognised as a full species. In this study, we re-examine specimens of the two species from across their entire geographic range using genetic markers, a morphometric analysis, and traditional morphological characters. Previous taxonomic species diagnoses were found to be unreliable, but morphometric principle component analyses consistently separate the two species, with the length to width ratio of the propodus of the fourth pereiopod being of particular importance. Genetic data corresponding to the mitochondrial genes COI, ND1 and 16S confirmed a close sister relationship between the two species, forming reciprocally monophyletic groups. Both species have high haplotype diversities and high intraspecific gene flow.

scholarly journals Phylogenetic relationships of the European newts (genus Triturus) tested with mitochondrial DNA sequence data

1999 ◽  
Vol 68 (2) ◽  
pp. 73-81 ◽  
Author(s):  
I. Zajc ◽  
J.W. Arntzen
Keyword(s):  
Mitochondrial Dna ◽  
Sequence Data ◽  
A Priori ◽  
Strong Support ◽  
Species Group ◽  
Rrna Genes ◽  
Sister Taxon ◽  
Phylogenetic Position ◽  
12S Rrna ◽  
16S Rrna Sequence

European newts (genus Triturus) are widely studied, but their phylogeny is not yet unambiguously resolved. Fragments of mitochondrial DNA experiencing different rates of evolution (the ATPase and 12S rRNA genes) were sequenced in order to test a phylogenetic hypothesis derived from biochemical and behavioral data. Well-supported branches of the existing phylogeny gained support in our study. The monophyletic origin of the hypothesized T. boscai – T. italicus clade remained ambiguous, whereas strong support was gained for the sister-taxon relationship of T. vulgaris and T. montandoni. The position of T. vittatus as a sister taxon to the T. marmoratus species group was also supported. The phylogenetic position of T. alpestris could not be clarified. With an in-group taxon sampling denser than in previous molecular phylogenetic studies and under the a priori selection of species from the genera Cynops, Neurergus and Paramesotriton as out-groups, the monophyly of Triturus was strongly supported. It cannot be excluded, however, that the presumed out-group actually belongs to the in-group, rendering Triturus paraphyletic as was concluded from recently published 12S and 16S rRNA sequence data.

A new species of Cyrtodactylus (Squamata: Gekkonidae) from Vientiane Province, northern Laos

Zootaxa ◽  
2019 ◽  
Vol 4701 (3) ◽  
pp. 257-275
Author(s):  
SALY SITTHIVONG ◽  
VINH QUANG LUU ◽  
NGOAN VAN HA ◽  
TRUONG QUANG NGUYEN ◽  
MINH DUC LE ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Species Group ◽  
Molecular Analyses ◽  
Hind Limbs ◽  
Morphological And Molecular Data ◽  
Dorsal Pattern ◽  
A New Species ◽  
I Gene ◽  
Genetic Comparison

A new species of the genus Cyrtodactylus from Vientiane Province, northern Laos is described based on morphological and molecular data. Cyrtodactylus muangfuangensis sp. nov. can be distinguished from remaining congeners by the following combination of characters: maximum SVL 83.9 mm; dorsal pattern consisting of dark nuchal loop, nape band and five dark transversal bands between limb insertions; intersupranasals two; dorsal tubercles present on occiput, body, hind limbs and tail base; 15 or 16 irregular dorsal tubercle rows at midbody; lateral folds clearly defined, without interspersed tubercles; 31–37 ventral scales between ventrolateral folds; six precloacal pores and 15 femoral pores in males, which are interrupted by six to eight poreless scales; six precloacal pitted scales plus in total 10–15 pitted femoral scales in females, which are separated by six to eight poreless scales; enlarged precloacal and femoral scales present; two or three postcloacal tubercles; median subcaudal scales transversely enlarged. In molecular analyses, the new species is strongly supported as a member of the Cyrtodactylus phongnhakebangensis species group, and weakly corroborated as a sister taxon to C. pageli. Pairwise genetic comparison shows that it is at least 18% divergent from other congeners in the species group based on a fragment of the mitochondrial cytochrome C oxidase subunit I gene. 

scholarly journals Caridina biyiga sp. nov., a new freshwater shrimp (Crustacea: Decapoda: Atyidae) from Leichhardt Springs, Kakadu National Park, Australia, based on morphological and molecular data, with a preliminary illustrated key to Northern Territory Caridina

Zootaxa ◽  
2019 ◽  
Vol 4695 (1) ◽  
pp. 1-25
Author(s):  
JOHN W. SHORT ◽  
TIMOTHY J. PAGE ◽  
CHRISTOPHER L. HUMPHREY
Keyword(s):  
New Species ◽  
16S Rdna ◽  
National Park ◽  
Strong Support ◽  
Molecular Data ◽  
Genetic Distances ◽  
Northern Territory ◽  
Coi Gene ◽  
Gene Fragment ◽  
Morphological And Molecular Data

Caridina biyiga sp. nov. is described from Leichhardt Springs, Kakadu National Park, Northern Territory, Australia, based on morphological and molecular data. The new species is highly distinctive among its congeners in having the dactylus of pereiopod 5 similar to the dactyli of pereiopods 3–4 and lacking the comb-like row of spiniform setae typical of the genus. The branchial formula is also distinctive for the genus in lacking an arthrobranch at the base of pereiopod 1 and in having a vestigial epipod on maxilliped 1.                Despite the distinctive morphology of the new species, the molecular data did not provide strong support for the recognition of a new genus. Phylogenetic analyses of Australian Caridina using the mitochondrial 16S rDNA gene fragment placed the new species in a well-supported clade containing at least one typical species of Caridina. Within this clade, referred to as the ‘thermophila’ group, Kimura 2-parameter (K2P) genetic distances of 16S rDNA between the new species and sister taxa ranged from 5.1–6.0%. Analyses using the mitochondrial 3’ COI gene fragment from species of the ‘thermophila’ group yielded K2P genetic distances between the new species and its sister taxa ranging from 10.4–15.1%.                A preliminary illustrated key to Northern Territory Caridina is provided. The conservation significance of Leichhardt Springs and its aquatic fauna are also briefly discussed. 

Arcanumophis, a new genus and generic allocation for Erythrolamprus problematicus (Myers 1986), Xenodontinae (Colubridae) from the Cordillera de Carabaya, southern Peru

Zootaxa ◽  
2019 ◽  
Vol 4671 (1) ◽  
pp. 129-138 ◽  
Author(s):  
CHRISTOPHER R. SMAGA ◽  
ALEX TTITO ◽  
ALESSANDRO CATENAZZI
Keyword(s):  
New Genus ◽  
Original Description ◽  
Molecular Data ◽  
Sister Taxon ◽  
South American ◽  
Single Specimen ◽  
Snake Species ◽  
Southern Peru ◽  
The Status ◽  
Morphological And Molecular Data

The systematics of South American Xenodontinae snakes has experienced large changes and improvements as a result of recent studies employing molecular data. Herein we assess the status of the rare Peruvian snake species, Erythrolamprus problematicus (Dipsadidae, Xenodontinae, Xenodontini), previously known from a single specimen collected in 1950. Based on new morphological and molecular data from a second specimen that we collected, we confirmed the presence of a crease in the rostral scale, mentioned in the original description (a unique trait among the Xenodontini), and recovered E. problematicus as the sister-taxon of all other Xenodontini, instead of nested among the current Erythrolamprus. Therefore, our phylogenetic results justify the erection of a new genus to accommodate the species. 

The Philodromus pulchellus-group in the Mediterranean: taxonomic revision, phylogenetic analysis and biogeography (Araneae:Philodromidae)

2007 ◽  
Vol 21 (1) ◽  
pp. 39 ◽  
Author(s):  
Christoph Muster ◽  
Robert Bosmans ◽  
Konrad Thaler
Keyword(s):  
Taxonomic Revision ◽  
Molecular Data ◽  
Species Group ◽  
Western Mediterranean ◽  
Mediterranean Origin ◽  
Character Variation ◽  
Nomina Dubia ◽  
Morphological And Molecular Data ◽  
Continuous Character

The Philodromus pulchellus species-group is defined and diagnosed. Eleven species are included, described or redescribed, keyed and illustrated: P. afroglaucinus, sp. nov. from Algeria; P. bistigma Simon, 1870, P. glaucinus Simon, 1870, P. lamellipalpis, sp. nov. from Algeria; P. medius O. P.-Cambridge, 1872; P. pardalis, sp. nov. from northern Africa and the Iberian peninsula; P. pulchellus Lucas, 1846, P. punctigerus O. P.-Cambridge, 1908, P. ruficapillus Simon, 1885, P. simoni de Mello-Leitão, 1929, and P. wunderlichi, sp. nov. from the western Canary Islands. The validity of P. bistigma and P. medius is re-established (formerly in synonymy with P. pulchellus); neotype and lectotype, respectively are newly designated. The following new synonymies are proposed: P. torquatus O. P.- Cambridge, 1908 = P. pulchellus; P. salinarum Denis, 1939 = P. glaucinus; P. glaucinoides Wunderlich, 1987 = P. punctigerus; P. marionschmidti (Schmidt, 1990) = P. pulchellus. Philodromus albopictus Simon, 1875 and P. rubidus Simon, 1870 are considered nomina dubia. Determination of phylogenetic relationships within the group is difficult owing to continuous character variation, resulting in partially incongruent reconstructions using morphological and molecular data (partial mitochondrial cytochrome c oxidase I gene). Dispersal vicariance analysis provides support for a western Mediterranean origin of the group.

scholarly journals Two new species of snail-eating snakes of the genus Tropidodipsas (Serpentes, Dipsadidae) from southern Mexico, with notes on related species

Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 233-257
Author(s):  
Christoph I. Grünwald ◽  
Sarahi Toribio-Jiménez ◽  
Carlos Montaño-Ruvalcaba ◽  
Hector Franz-Chávez ◽  
Miguel A. Peñaloza-Montaño ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Molecular Data ◽  
Species Group ◽  
Conservation Priorities ◽  
Southern Mexico ◽  
Two New Species ◽  
Taxonomic Changes ◽  
Morphological And Molecular Data ◽  
Mexican Species

We describe two new species of Tropidodipsas related to the T. fasciata species group as defined by Kofron (1987), and provide morphological and molecular data to support the novelty of both species. A partial molecular phylogeny of the Mexican species of snail-eating snakes (Serpentes, Dipsadidae) is presented, and we discuss evolutionary relationships as supported by our molecular results. We analyze specific relationships of the new species described herein with their closest relatives. We present a distribution map for all species of Tropidodipsas and include photographs of living individuals of each species. Finally, we discuss other taxonomic changes based on our molecular phylogeny as well as conservation priorities of the new species.

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