scholarly journals The “minute diving beetles” of southern Australia – taxonomic revision of Gibbidessus Watts, 1978, with description of six new species (Coleoptera, Dytiscidae, Bidessini)

ZooKeys ◽  
2020 ◽  
Vol 975 ◽  
pp. 11-49
Author(s):  
Lars Hendrich ◽  
Chris H.S. Watts ◽  
Michael Balke
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Taxonomic Revision ◽  
Colour Pattern ◽  
Morphological Evidence ◽  
Molecular Systematic ◽  
Dna Sequence Data ◽  
Diving Beetles ◽  
Genital Structure ◽  
Male Genital

Morphology and mitochondrial DNA sequence data are used to reassess the taxonomy of Australian diving beetles previously assigned to the genera Uvarus Guignot, 1939 and Gibbidessus Watts, 1978. Gibbidessus was described as a monotypic genus for Gibbidessus chipi Watts, 1978. The genus is significantly extended here. Based on molecular systematic evidence, Uvarus pictipes (Lea, 1899) is transferred to Gibbidessus. Gibbidessus chipi and Gibbidessus pictipescomb. nov. are redescribed, and six new species are described: Gibbiddessus atomussp. nov. (SW Australia, Northcliffe area) [the smallest epigean diving beetle in Australia], G. davidisp. nov. (SW Australia), G. drikdrikensissp. nov. (Victoria), G. kangarooensissp. nov. (SA Kangaroo Island), G. pederzaniisp. nov. (SW Australia, Nannup area), and G. rottnestensissp. nov. (SW Australia). Species are delineated using characters such as male genital structure and beetle size, shape and colour pattern. Mitochondrial Cox1 data for 27 individuals, representing five species, were generated, and revealed clusters congruent with the morphological evidence. Gibbidessus occur in southern Australia, with the centre of diversification in the isolated peat- and wetlands of SW Australia. All species occur in very shallow water of seasonal, exposed or half-shaded wetlands and flooded meadows.

Taxonomic revision of Australasian diving beetles in the genus Leiodytes Guignot, 1936 (Coleoptera: Dytiscidae, Bidessini)

Zootaxa ◽  
2021 ◽  
Vol 4990 (1) ◽  
pp. 23-44
Author(s):  
LARS HENDRICH ◽  
LIANG-JONG WANG ◽  
MICHAEL BALKE
Keyword(s):  
Taxonomic Revision ◽  
New Guinea ◽  
Color Pattern ◽  
Morphological Evidence ◽  
Molecular Evidence ◽  
Diving Beetles ◽  
Intermittent Rivers ◽  
Genital Structure ◽  
Subjective Synonym ◽  
Male Genital

Bidessus migrator Sharp, 1882, so far assigned to Clypeodytes Régimbart, 1894, and widely distributed in Australia and New Guinea, is re-described. Based on morphological and molecular evidence, it is here transferred to Leiodytes Guignot, 1936. Bidessus loriae Régimbart, 1892 is found to be a junior subjective synonym of L. migrator. We describe the following new species: Leiodytes surianiae sp. nov. (eastern New Guinea, northeast coast of Queensland), and Leiodytes wattsi sp. nov. (southern New Guinea and Darwin area to northern Queensland). We delineate the species using characters such as male genital structure and beetle size, shape and color pattern. Mitochondrial Cox1 data for 27 individuals, representing all three Australasian species, were generated and revealed clusters congruent with the morphological evidence. In Australia Leiodytes only occurs in the tropical and subtropical northern part of the continent. None of the species is endemic to Australia. The species are mainly lentic, occurring in seasonal swamps, flooded meadows and pools of intermittent rivers and temporary creeks.  

scholarly journals Two new species of Liodessus Guignot, 1939 diving beetles from Northern Peru (Coleoptera, Dytiscidae, Hydroporinae)

2020 ◽  
Vol 4 ◽  
pp. 173-178
Author(s):  
Michael Balke ◽  
Yoandri S. Megna ◽  
Nilver Zenteno ◽  
Luis Figueroa ◽  
Lars Hendrich
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Colour Pattern ◽  
Morphological Evidence ◽  
High Altitudes ◽  
Andean Region ◽  
Diving Beetles ◽  
Two New Species ◽  
Northern Peru ◽  
North Western

The diving beetles Liodessus altoperuensissp. nov. and Liodessus caxamarcasp. nov. (Dytiscidae, Hydroporinae, Bidessini) are described from the high altitudes of the Puna regions of north western Peru. They occur in shallow and exposed mossy peatland puddles. We delineate the two species using structures such as male genitalia, beetle size, shape and colour pattern. Mitochondrial Cox1 data were also generated, and revealed clusters congruent with morphological evidence. Altogether fourteen Liodessus species are now known from the Andean region.

A new species of Chusquea subg. Chusquea (Poaceae—Bambusoideae—Bambuseae) from Minas Gerais, Brazil: morphological evidence and phylogenetic placement within the Euchusquea clade

Phytotaxa ◽  
2018 ◽  
Vol 365 (1) ◽  
pp. 73 ◽  
Author(s):  
KAIO VINICIUS DE A. VIDAL ◽  
CASSIANO A. DORNELES WELKER ◽  
IASMIN LAIANE C. OLIVEIRA ◽  
ALINE COSTA DA MOTA ◽  
REYJANE P. OLIVEIRA ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Plastid Dna ◽  
Minas Gerais ◽  
Morphological Evidence ◽  
Forest Fragments ◽  
Vertical Orientation ◽  
Informal Group ◽  
Dna Sequence Data ◽  
A New Species

Chusquea gouveiensis is a new species of tropical woody bamboo from Brazil, herein described and illustrated. It is classified within C. subg. Chusquea, mainly based on its scandent habit, triangular central bud with vertical orientation, extra-or infravaginal branching, and lemma margins free at the apex. The new species is most similar to C. gracilis because they share culm leaves with undifferentiated sheaths and blades with a folded or twisted apex, and foliage leaves and spikelets of similar length. However, C. gouveiensis is distinguished from C. gracilis by having branch complements of 40‒90 usually ascending subsidiary branches (vs. 70‒195 mostly horizontally oriented subsidiary branches), synflorescences weakly paniculate to racemose (vs. paniculate), glumes I and II collectively 0.3‒0.7 mm long (vs. 0.1‒0.2 mm long), and glumes III and IV awned and abaxially pilose to pubescent at the apex (vs. mucronate and glabrous). The two species also differ in distribution: C. gouveiensis is only known from the region of Gouveia and Diamantina, in the southern portion of the Espinhaço Range in Minas Gerais state, Brazil, in forest fragments at 1,200‒1,300 m.a.s.l., whereas C. gracilis occurs in the southern Brazilian states of Paraná, Santa Catarina and Rio Grande do Sul, in mixed ombrophilous forests between 550 and 880 m.a.s.l. Based on nuclear internal transcribed spacer (ITS) and plastid DNA sequence data (ndhF and trnD-trnT), a sixth lineage within the Euchusquea clade was identified, herein named clade VI—Chusquea meyeriana clade, comprising a significant portion of the Brazilian species of Chusquea. The new species has phylogenetic affinities with the C. meyeriana informal group and is also distinct from C. gracilis in the phylogeny.

A new species of the genus Smithophis (Squamata: Serpentes: Natricidae) from southwestern China and northeastern Myanmar

Zootaxa ◽  
2020 ◽  
Vol 4803 (1) ◽  
pp. 51-74
Author(s):  
GERNOT VOGEL ◽  
ZENING CHEN ◽  
V. DEEPAK ◽  
DAVID J. GOWER ◽  
JINGSONG SHI ◽  
...  
Keyword(s):  
New Species ◽  
Cytochrome B ◽  
Yunnan Province ◽  
Sequence Data ◽  
Colour Pattern ◽  
Mitochondrial Cytochrome ◽  
Republic Of China ◽  
Dna Sequence Data ◽  
Mitochondrial Cytochrome B ◽  
A New Species

A new species of natricid snake, Smithophis linearis sp. nov., is described on the basis of a single recently collected specimen from Yingjiang County, Yunnan Province, People’s Republic of China, and three historical specimens from Yunnan and from northeastern Myanmar. The new species is assigned to the genus Smithophis on the basis of its single internasal and single prefrontal shields, and on the basis of the results of phylogenetic analysis of mitochondrial cytochrome b DNA sequence data. The new species differs from its congeners in having the following combination of characters: temporal shields present, six or more circumorbital scales, and a distinctive colour pattern comprising regular, narrow, longitudinal dark and pale lines. Morphological and cytochrome b data are consistent with the recognition of Smithophis as distinct from the genus Opisthotropis. A revised key to the identification of the species of Smithophis is provided. 

scholarly journals The challenge of integrative taxonomy of rare, deep-water gastropods: the genus Exilia (Neogastropoda: Turbinelloidea: Ptychatractidae)

2020 ◽  
Vol 86 (2) ◽  
pp. 120-138
Author(s):  
Yuri I Kantor ◽  
Nicolas Puillandre ◽  
Philippe Bouchet
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
First Record ◽  
Integrative Taxonomy ◽  
Molecular Systematic ◽  
Dna Sequence Data ◽  
In The Wild ◽  
Anatomical Characters

Abstract According to a recent taxonomic revision by Kantor et al. (2001), the neogastropod genus Exilia Conrad, 1860, comprises ten mostly rare species that live at depths between 200 and 2000 m. Adult Exilia measure between 30 and 90 mm in shell length, and the genus is mostly represented in museum collections by empty shells. The abundance of this genus is low in the wild, but recent expeditions organized by the Muséum national d’Histoire naturelle have yielded several dozen specimens. These new collections include samples preserved for molecular studies. Here, we present the results of the first molecular systematic study of Exilia. Our aim was to investigate the species limits proposed by Kantor et al. (2001) on the basis of shell and anatomical characters. Analysis of DNA sequence data for the cytochrome c oxidase I gene suggests that Exilia hilgendorfi, previously considered to be a single, polymorphic and broadly distributed species, is a complex of at least six species (four of which we sequenced). Two of these species, Exilia cognata n. sp. and E. fedosovi n. sp., are described as new to science. Exilia gracilior, E. claydoni and E. prellei are resurrected from the synonymy of Exilia hilgendorfi; of these three, only the last was sequenced. Exilia vagrans is a well-defined taxon, but our molecular systematic data shows that it consists of two distinct species, which occur sympatrically off Taiwan and are strikingly similar in shell and radular morphology; due to the absence of DNA sequence data from the type locality of E. vagrans (Vanuatu), it is unclear to which of these two species the name would apply. Exilia karukera n. sp., which is conchologically very similar to E. vagrans, was discovered off Guadeloupe, represents the first record of the genus from the Atlantic. For E. elegans, which was previously known only from a single shell, we provide new data including new distributional records (South Africa and the Mozambique Channel), details of the radula and DNA sequence data.

scholarly journals Revision of the poorly known Neotropical butterfly genus Zischkaia Forster, 1964 (Lepidoptera, Nymphalidae, Satyrinae), with descriptions of nine new species

2019 ◽  
Author(s):  
Shinichi Nakahara ◽  
Thamara Zacca ◽  
Fernando M.S. Dias ◽  
Diego R. Dolibaina ◽  
Lei Xiao ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Sequence ◽  
Sequence Data ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
South American ◽  
Dna Barcodes ◽  
Dna Sequence Data

We provide the first comprehensive taxonomic revision of the poorly known South American butterfly genus Zischkaia Forster, 1964, hitherto regarded as including three described species. A phylogenetic analysis based on DNA sequence data shows that Zischkaia is monophyletic and consists of two morphologically diagnosable clades. Morphological characters and DNA ‘barcodes’ support the recognition of twelve species in the genus, a significant increase even for the relatively poorly studied subtribe Euptychiina. Consequently, nine new species are described and named herein, including Z. arctoa Nakahara, sp. nov., Z. chullachaki Nakahara & Zacca, sp. nov., Z. baku Zacca, Dolibaina & Dias, sp. nov., Z. arenisca Nakahara, Willmott & Hall, sp. nov., Z. argyrosflecha Nakahara, L. Miller & Huertas, sp. nov., Z. abanico Nakahara & Petit, sp. nov., Z. josti Nakahara & Kleckner, sp. nov., Z. mielkeorum Dolibaina, Dias & Zacca, sp. nov. and Z. warreni Dias, Zacca & Dolibaina, sp. nov. In addition, a neotype is designated for Satyrus pacarus Godart, [1824], and lectotypes are designated for Euptychia amalda Weymer, 1911, Euptychia fumata Butler, 1867 and Euptychia saundersii Butler, 1867.

scholarly journals A new Indian species of Rhinophis Hemprich, 1820 closely related to R. sanguineus Beddome, 1863 (Serpentes: Uropeltidae)

Zootaxa ◽  
2020 ◽  
Vol 4881 (1) ◽  
pp. 1-24
Author(s):  
FILIPA L. SAMPAIO ◽  
SURYA NARAYANAN ◽  
VIVEK PHILIP CYRIAC ◽  
GOVINDAPPA VENU ◽  
DAVID J. GOWER
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequences ◽  
Sequence Data ◽  
Colour Pattern ◽  
Indian Species ◽  
Peninsular India ◽  
Dna Sequence Data ◽  
New Species Description ◽  
The Western Ghats

A new species of the uropeltid (shieldtail snake) genus Rhinophis is described based on a type series of seven specimens from the Wayanad region of the Western Ghats of peninsular India. The holotype was collected before 1880 but had been misidentified as the phenotypically similar and parapatric (possibly partly sympatric) R. sanguineus. Rhinophis karinthandani sp. nov. is diagnosed by a combination of 15 dorsal scale rows at midbody, 4–8 pairs of subcaudal scales, colour pattern (uniformly dark above, whitish below with extensive dark mottling), and by its distinct mitochondrial DNA sequences (e.g. >7.6% uncorrected p-distance for nd4). Phylogenetic analysis of mitochondrial DNA sequence data indicates that the new species is most closely related to R. sanguineus among currently recognised species, with this pair most closely related to the partly sympatric R. melanoleucus. The new species description brings the number of currently recognised species in the genus to 24, six of which are endemic to India and 18 endemic to Sri Lanka. A new key to the identification of Indian species of Rhinophis is provided.

scholarly journals Revision of the genus Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) in Australia

Zootaxa ◽  
2011 ◽  
Vol 3146 (1) ◽  
pp. 1 ◽  
Author(s):  
GLENN SHEA ◽  
PATRICK COUPER ◽  
JESSICA WORTHINGTON WILMER ◽  
ANDREW AMEY
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Sequence Data ◽  
Species Group ◽  
Colour Pattern ◽  
Morphological Evidence ◽  
Species Pair ◽  
River Drainage ◽  
Iron Range ◽  
Area North

The gekkonid lizard genus Cyrtodactylus in Australia is revised based on a combination of morphology and mitochondrial (ND2) sequence data. Previous hypotheses that the Australian populations are assignable to a New Guinea species, C. louisiadensis, or to a Cyrtodactylus louisiadensis species group defined on shared colour pattern and enlarged subcaudal scales, are rejected. Evidence is provided for the existence of five endemic species in Australia, allopatrically distributed. Cyrtodactylus tuberculatus (Lucas & Frost) is formally resurrected for Australian populations in the Cooktown area, from Mt Leswell north to Stanley Island. Four new species are described: C. mcdonaldi sp. nov. in the south, from the Chillagoe area north to Parrot Creek Falls, C. hoskini sp. nov. from the Iron Range area, C. adorus sp. nov. from the Pascoe River drainage, and C. pronarus sp. nov. from the McIlwraith Range. Concordant genetic and morphological evidence enable the hypothesis that C. adorus and C. pronarus represent a species pair distinct from the sublineage represented by C. tuberculatus, C. mcdonaldi and C. hoskini.

A new Liopeltis Fitzinger, 1843 (Squamata: Colubridae) from Pulau Tioman, Peninsular Malaysia

Zootaxa ◽  
2020 ◽  
Vol 4766 (3) ◽  
pp. 472-484
Author(s):  
HANNAH E. SOM ◽  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
EVAN S. H. QUAH ◽  
RAFE M. BROWN ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequence ◽  
Rare Species ◽  
Sequence Data ◽  
Peninsular Malaysia ◽  
Tropical Asia ◽  
Dna Sequence Data ◽  
A New Species ◽  
Lines Of Evidence

Liopeltis is a genus of poorly known, infrequently sampled species of colubrid snakes in tropical Asia. We collected a specimen of Liopeltis from Pulau Tioman, Peninsular Malaysia, that superficially resembled L. philippina, a rare species that is endemic to the Palawan Pleistocene Aggregate Island Complex, western Philippines. We analyzed morphological and mitochondrial DNA sequence data from the Pulau Tioman specimen and found distinct differences to L. philippina and all other congeners. On the basis of these corroborated lines of evidence, the Pulau Tioman specimen is described as a new species, L. tiomanica sp. nov. The new species occurs in sympatry with L. tricolor on Pulau Tioman, and our description of L. tiomanica sp. nov. brings the number of endemic amphibians and reptiles on Pulau Tioman to 12. 

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