Phylogenetic relationships of Pamphagidae were examined using cytochrome oxidase subunit II （COIl） mtDNA sequences （684 bp）. Twenty-seven species of Acridoidea from 20 genera were sequenced to obtain mtDNA data, a...Phylogenetic relationships of Pamphagidae were examined using cytochrome oxidase subunit II （COIl） mtDNA sequences （684 bp）. Twenty-seven species of Acridoidea from 20 genera were sequenced to obtain mtDNA data, along with four species from the GenBank nucleotide database. The purpose of this study was analyzing the phylogenetic relationships among subfamilies within Pamphagidae and interpreting the phylogenetic position of this family within the Acridoidea superfamily. Phylogenetic trees were reconstructed using neighbor-joining （NJ）, maximurn parsimony （MP） and Bayesian inference （BI） methods. The 684 bp analyzed fragment included 126 parsimony informative sites. Sequences diverged 1.0%-11.1% between genera within subfamilies, and 8.8%-12.3% between subfamilies. Amino acid sequence diverged 0-6.1% between genera within subfamilies, and 0.4%-7.5% between subfamilies. Our phylogenetic trees revealed the monophyly of Pamphagidae and three distinct major groups within this family. Moreover, several well supported and stable clades were found in Pamphagidae. The global clustering results were similar to that obtained through classical morphological classification： Prionotropisinae, Thrinchinae and Pamphaginae were monophyletic groups. However, the current genus Filchnerella （Prionotropisinae） was not a monophyletic group and the genus Asiotmethis （Prionotropisinae） was a sister group of the genus Thrinchus （Thrinchinae）. Further molec- ular and morphological studies are required to clarify the phylogenetic relationships of the genera Filchnerella and Asiotmethis.展开更多
This paper reports a new subfamily, a new genus and a new species, that is, Pacrinae subfam, nov., Pacris gen. nov and Pacris xizangensis sp. nov in Gomphoceridae. The new subfamily is allied to Orinhippinae of Gompho...This paper reports a new subfamily, a new genus and a new species, that is, Pacrinae subfam, nov., Pacris gen. nov and Pacris xizangensis sp. nov in Gomphoceridae. The new subfamily is allied to Orinhippinae of Gomphoeeridae and it differs from the latter by wings and tympanum absent. The new genus is similar to Orinhippus Uvarov, 1921 but differs from the latter in： （i） foveolae absent; （ii） tegmina absent; （iii） tympanum absent; （iv） hind margin of pronotum with incised in the middle. Type specimens are deposited in the Museum of Hebei University, Baoding, China.展开更多
文摘Phylogenetic relationships of Pamphagidae were examined using cytochrome oxidase subunit II （COIl） mtDNA sequences （684 bp）. Twenty-seven species of Acridoidea from 20 genera were sequenced to obtain mtDNA data, along with four species from the GenBank nucleotide database. The purpose of this study was analyzing the phylogenetic relationships among subfamilies within Pamphagidae and interpreting the phylogenetic position of this family within the Acridoidea superfamily. Phylogenetic trees were reconstructed using neighbor-joining （NJ）, maximurn parsimony （MP） and Bayesian inference （BI） methods. The 684 bp analyzed fragment included 126 parsimony informative sites. Sequences diverged 1.0%-11.1% between genera within subfamilies, and 8.8%-12.3% between subfamilies. Amino acid sequence diverged 0-6.1% between genera within subfamilies, and 0.4%-7.5% between subfamilies. Our phylogenetic trees revealed the monophyly of Pamphagidae and three distinct major groups within this family. Moreover, several well supported and stable clades were found in Pamphagidae. The global clustering results were similar to that obtained through classical morphological classification： Prionotropisinae, Thrinchinae and Pamphaginae were monophyletic groups. However, the current genus Filchnerella （Prionotropisinae） was not a monophyletic group and the genus Asiotmethis （Prionotropisinae） was a sister group of the genus Thrinchus （Thrinchinae）. Further molec- ular and morphological studies are required to clarify the phylogenetic relationships of the genera Filchnerella and Asiotmethis.
文摘This paper reports a new subfamily, a new genus and a new species, that is, Pacrinae subfam, nov., Pacris gen. nov and Pacris xizangensis sp. nov in Gomphoceridae. The new subfamily is allied to Orinhippinae of Gomphoeeridae and it differs from the latter by wings and tympanum absent. The new genus is similar to Orinhippus Uvarov, 1921 but differs from the latter in： （i） foveolae absent; （ii） tegmina absent; （iii） tympanum absent; （iv） hind margin of pronotum with incised in the middle. Type specimens are deposited in the Museum of Hebei University, Baoding, China.
