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The genus Scaptodrosophila Duda part I: the brunnea species group from the Oriental Region, with morphological and molecular evidence (Diptera, Drosophilidae).

ABSTRACT: Seven new species of the Scaptodrosophila brunnea species group are described from east Asia: S. maculatasp. n., S. melanogastersp. n., S. nigricostatasp. n., S. nigripectasp. n., S. obscuratasp. n., S. protenipenissp. n. and S. rhinasp. n. Three known species, S. parabrunnea (Tsacas & Chassagnard), S. pressobrunnea (Tsacas & Chassagnard) and S. scutellimargo (Duda) are redescribed. A key to all the examined species in the brunnea group is provided. Species delimitations have been improved by integrating the DNA sequences with morphological information. The intra- and interspecific pairwise p-distances (proportional distance) are summarized. Some nucleotide sites with fixed status in the alignment of the COI sequences (664 nucleotide sites in length) are used as "pure" molecular diagnostic characters to delineate species in the brunnea group.

SUBMITTER: Liu YQ

PROVIDER: S-EPMC5523211 | biostudies-literature |

REPOSITORIES: biostudies-literature

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The genus Scaptodrosophila Duda part II: the coracina species group from East Asia, with morphological and molecular evidence (Diptera, Drosophilidae).

Project description:Eight new species of the Scaptodrosophila coracina species group are described from China: S. fuscilimbasp. n., S. fusciventriculasp. n., S. helvpectasp. n., S. longispinatasp. n., S. nigrolimbatasp. n., S. trivittatasp. n., S. ventriobscuratasp. n., and S. zebrinasp. n. One known species S. coracina (Kikkawa & Peng) is redescribed. A key to all the examined species in the coracina group is provided. Species delimitations have been improved by integrating the DNA sequences with morphological information. The intra- and interspecific pairwise p-distances (proportional distance) are summarized. Some nucleotide sites with fixed status in the alignment of the COI sequences (662 nucleotide sites in length) are used as "pure" molecular diagnostic characters to delineate species in the coracina group.

| S-EPMC5904429 | biostudies-literature

A new species group in the genus Dichaetophora, with descriptions of six new species from the Oriental region (Diptera, Drosophilidae).

Project description:The genus Dichaetophora Duda comprises 61 described species classified into four species groups: agbo, tenuicauda, acutissima and sinensis. This genus is distributed exclusively in the Old World, and is rich in species in the tropical and subtropical areas of the Oriental, Australasian, and Afrotropical regions. In this paper, a new species group, the trilobita group, is established for six new species discovered from the Oriental region. The delimitation of these species is firstly performed in light of morphology and further with the aid of DNA sequences of the mitochondrial COI and COII (cytochrome c oxydase, subunits I and II, respectively) genes, considering also their respective geographical origins. Then, the new species (trilobita Yang & Gao, sp. n., heterochroma Yang & Gao, sp. n., flatosternata Yang & Gao, sp. n., borneoensis Yang & Gao, sp. n., javaensis Yang & Gao, sp. n., and sumatraensis Yang & Gao, sp. n.) are described, and a key, based on not only morphological but also molecular information, is provided.

| S-EPMC5523170 | biostudies-literature

The genus Scaptodrosophila Duda (Diptera, Drosophilidae), part III: the riverata species group from China, with morphological and molecular evidence for five new species.

Project description:A new species group, the riverata species group, is established within the genus Scaptodrosophila based on morphological and molecular evidence for five known and five new species from China: S. abdentata sp. nov., S. cederholmi (Okada, 1988), S. crocata (Bock, 1976), S. paraclubata (Sundaran & Gupta, 1991), S. platyrhina sp. nov., S. puncticeps (Okada, 1956), S. riverata (Singh & Gupta, 1977), S. serrateifoliacea sp. nov., S. sinuata sp. nov. and S. tanyrhina sp. nov. A key to this group is provided. Furthermore, 51 mtDNA COI sequences belonging to S. puncticeps, S. riverata and the five new species are used for verifying species boundaries defined by the morphological data.

| S-EPMC7280316 | biostudies-literature

The genus Dettopsomyia Lamb, 1914 (Diptera, Drosophilidae) from southern China

Project description:Abstract The genus Dettopsomyia was established by Lamb in 1914 for a single species, De.formosa described therein. It contains 13 known species recorded from the Old World (the Oriental, Australasian, Palearctic and Afrotropical regions). In the present paper, five new species discovered from southern China are described as members of Dettopsomyia: De.acutipenis Wang & Gao, sp. nov., De.serripenis Wang & Gao, sp. nov., De.discontinua Wang & Gao, sp. nov., De.camelonota Wang, Li & Gao, sp. nov. and De.paranigrovittata Wang, Li & Gao, sp. nov. The new species were delimitated, based on not only morphological characters but also molecular data.

| S-EPMC8390456 | biostudies-literature

Out of Hawaii: the origin and biogeography of the genus Scaptomyza (Diptera: Drosophilidae).

Project description:The Hawaiian Archipelago is the most isolated island system on the planet and has been the subject of evolutionary research for over a century. The largest radiation of species in Hawaii is the Hawaiian Drosophilidae, a group of approximately 1000 species. Dispersal to isolated island systems like Hawaii is rare and the resultant flora and fauna shows high disharmony with mainland communities. The possibility that some lineages may have originated in Hawaii and subsequently 'escaped' to diversify on continental landmasses is expected to be rarer still. We present phylogenetic analysis of 134 partially sequenced mitochondrial genomes of Drosophilidae (approx. 1.3 Mb of sequence total) to address major aspects of adaptive radiation and dispersal in Hawaii. We show that the genus Scaptomyza, a group that accounts for approximately one-third of the species-level diversity of Drosophilidae in the Hawaiian Islands, originated in Hawaii, diversified there, and subsequently colonized a number of island and continental landmasses elsewhere on the globe. We propose that a combination of small body size, rapid generation time and unique ecological and physiological adaptations have allowed this genus to effectively disperse and diversify.

| S-EPMC2429922 | biostudies-literature

A review of the genus Lordiphosa Basden in India, with descriptions of four new species from the Himalayan region (Diptera, Drosophilidae).

Project description:All Indian species of the genus Lordiphosa Basden are reviewed, with descriptions of four new species, L. curva Fartyal & Toda, sp. n. of the denticeps species group and L. ayarpathaensis Kandpal & Singh, sp. n., L. makaibarensis Pradhan & Chatterjee, sp. n. and L. srinagarensis Sati & Fartyal, sp. n. of the nigricolor species group. Two of the new species, L. ayarpathaensis and L. makaibarensis, were found visiting flowers of Hedychium spicatum and Datura suaveolens, respectively. This is the first record of flower visitation in Lordiphosa flies. In addition, L. parantillaria (Kumar & Gupta, 1990), syn. n. is synonymized with L. antillaria (Okada, 1984). Supplementary and revised descriptions for L. antillaria and L. neokurokawai (Singh & Gupta, 1981) and a key to all Indian species of Lordiphosa are provided.

| S-EPMC5672582 | biostudies-literature

Protomedetera, a new genus from the Oriental and Australasian realms (Diptera, Dolichopodidae, Medeterinae).

Project description:Protomedeteragen. n. (Diptera: Dolichopodidae), a new genus of the subfamily Medeterinae, is described from the Oriental and Australasian realms based on four new species. Protomedetera singaporensis Grootaert & Tang, sp. n. is designated as type of the new genus. The genus is peculiar because of the small body size, the small globular first flagellomere (postpedicel), the simple male genitalia with indistinct or small epandrial lobe and half-hidden cercus. The following four new species are described and illustrated: P. biconvexasp. n., P. bisetasp. n., P. glabrasp. n., and P. singaporensissp. n. A key to the species of the new genus is provided.

| S-EPMC5904401 | biostudies-literature

Integrative taxonomy of the genus Pseudostegana (Diptera, Drosophilidae) from China, with descriptions of eleven new species.

Project description:The genus Pseudostegana (Okada, 1978) currently contains thirty-nine described species. A number of Pseudostegana were collected from the fieldwork in southwestern China from 2010 to 2017. Eleven new species were discovered and are described from southwestern China: Pseudostegana alpina Zhang & Chen, sp. nov.; Pseudostegana amnicola Zhang & Chen, sp. nov.; Pseudostegana amoena Zhang & Chen, sp. nov.; Pseudostegana mailangang Zhang & Chen, sp. nov.; Pseudostegana meiduo Zhang & Chen, sp. nov.; Pseudostegana meiji Zhang & Chen, sp. nov.; Pseudostegana mystica Zhang & Chen, sp. nov.; Pseudostegana stictiptrata Zhang & Chen, sp. nov.; Pseudostegana stigmatptera Zhang & Chen, sp. nov.; Pseudostegana ximalaya Zhang & Chen, sp. nov. and Pseudostegana zhuoma Zhang & Chen, sp. nov. A key to all Chinese Pseudostegana species based on morphological characters is provided. Two mitochondrial loci (COI and ND2) and one nuclear locus (28S rRNA) were sequenced for the Pseudostegana specimens, and Bayesian and RAxML concatenated analyses were run. Molecular species delimitation is performed using the distance-based automatic barcode gap discovery (ABGD) method. Molecular data support the morphological characteristics observed among these Chinese species and confirm the new species as being distinctly different.

| S-EPMC6129143 | biostudies-other

Five new species of Drosophilaguarani group from the Andes of southern Ecuador (Diptera, Drosophilidae).

Project description:Five species of the genus Drosophila are described and illustrated: D.zamorana sp. n., D.quinarensis sp. n., D.sachapuyu sp. n., D.caxarumi sp. n., and D.misi sp. n. from the cloud forests of the Podocarpus National Park, in the southern Ecuadorian Andes. Flies were captured using plastic bottles containing pieces of fermented banana with yeast. All the species were found to belong to the Drosophilaguarani species-group.

| S-EPMC6160839 | biostudies-other

A new species of the genus Microtendipes Kieffer, 1915 (Diptera, Chironomidae) from Oriental China.

Project description:A new species of the genus Microtendipes Kieffer, 1915, Microtendipes zhejiangensissp.n., is described, and its morphological description and illustrations are given. A catalogue of the genus in Oriental Region is provided and a key to the males of Microtendipes in the Oriental Region is given.

| S-EPMC3428705 | biostudies-literature

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