Mitochondrial 12S and 16S ribosomal RNA genes sequences were sequenced using dye-labeled terminator on an ABI 377 automated sequencer in 11 individuals and 1 species' sequences were gained from GenBank,representin...Mitochondrial 12S and 16S ribosomal RNA genes sequences were sequenced using dye-labeled terminator on an ABI 377 automated sequencer in 11 individuals and 1 species' sequences were gained from GenBank,representing 6 genera of family Tetrigidae.The collated sequences were aligned using Clustal X version 1.81 and then,the sequence variability and heredity distances based on Kimura 2-parameter model were calculated using Mega 2.1.In obtained sequences (736 bp),the average A+T content is 73.9%,ranging from 71.2% to 77.5%;the overall G+C content is 26.1%,ranging from 22.5% to 28.8%.Based on alignment of the combined sequences,185 parsimony-informative sites were revealed in 755 available base pairs.Phylogenetic trees were reconstructed using NJ,MP and ML methods with Cylindraustralia kochii as outgroup.The results indicated that the monophyletic nature of Tetrix is questioned and suggest that T.tubercarina may be given tribal rank.Our results also show that Coptltettix huanjiangensis and C.gongshanensis are the same species,i.e.Coptltettix gongshanensis Zheng,and C.huanjiangensis is the synonyms of C.gongshanensis.展开更多
One new species of the genus Alulatettix Liang, Alulatettix ochrotibis Deng and Zheng, sp. nov. is described. Type specimens are deposited in the Institute of Zoology, Shaanxi Normal University, China.
One new species of the genus Tetrix LatreiUe, Tetrix nanpanjiangensis sp. nov. is described. This new species can be distinguished from Tetrix guibeiensis Zheng, Lu and Li, 2000 by： 1） in profile, vertex and frontal...One new species of the genus Tetrix LatreiUe, Tetrix nanpanjiangensis sp. nov. is described. This new species can be distinguished from Tetrix guibeiensis Zheng, Lu and Li, 2000 by： 1） in profile, vertex and frontal ridge forming a right angle; 2） frontal ridge slightly cocave between lateral ocellus; 3） anterior margin of pronotum straight; 4） anterior half of disc of pronotum slightly arched, posterior half flat in profile; 5） without a pair short longitudinal keels between shoulder; 6） third pulvillus of first tarsus longer than first and second. It appears similar to Tetrix tinkhami Zheng et Liang, 1998, but differs from the latter by it hind wings slightly not reaching top of hind process, width of midfemur narrower than width of tegmina. The type specimens are deposited in the Institute of Zoology, Shaanxi Normal University, China and Department of Chemistry and Life Science, Hechi University, China.展开更多
One new species in the genus Ergatettix from Yunnan Province is described, Ergatettix longlingensis sp. nov. This new species is allied to Ergatettix serrifemorides Zheng ＆ Shi, 2009, but differs in： 1） antenna ins...One new species in the genus Ergatettix from Yunnan Province is described, Ergatettix longlingensis sp. nov. This new species is allied to Ergatettix serrifemorides Zheng ＆ Shi, 2009, but differs in： 1） antenna inserted below the lower margin of eyes; 2） hind process reaching the apex of hind femora; 3） hind wing reaching the apex of hind process; 4） lateral keels of prozona constructed backward; 5） midkeel of upper side of hind femur with two leaf-shaped protuberance near the basal part; 6） outside of lower side of hind femur not black; 7） hind tibia dark brown. The holotype is deposited in the Institute of Zoology, Shaanxi Normal University. A key to species of Ergatettix from China is presented.展开更多
文摘Mitochondrial 12S and 16S ribosomal RNA genes sequences were sequenced using dye-labeled terminator on an ABI 377 automated sequencer in 11 individuals and 1 species' sequences were gained from GenBank,representing 6 genera of family Tetrigidae.The collated sequences were aligned using Clustal X version 1.81 and then,the sequence variability and heredity distances based on Kimura 2-parameter model were calculated using Mega 2.1.In obtained sequences (736 bp),the average A+T content is 73.9%,ranging from 71.2% to 77.5%;the overall G+C content is 26.1%,ranging from 22.5% to 28.8%.Based on alignment of the combined sequences,185 parsimony-informative sites were revealed in 755 available base pairs.Phylogenetic trees were reconstructed using NJ,MP and ML methods with Cylindraustralia kochii as outgroup.The results indicated that the monophyletic nature of Tetrix is questioned and suggest that T.tubercarina may be given tribal rank.Our results also show that Coptltettix huanjiangensis and C.gongshanensis are the same species,i.e.Coptltettix gongshanensis Zheng,and C.huanjiangensis is the synonyms of C.gongshanensis.
基金supported by Guangxi Natural Science Foundation (0991266)Program for Excellent Talents in Guangxi Higher Education Institutions (08034, RC2007034)
文摘One new species of the genus Alulatettix Liang, Alulatettix ochrotibis Deng and Zheng, sp. nov. is described. Type specimens are deposited in the Institute of Zoology, Shaanxi Normal University, China.
基金The project is supported by the Guangxi Education Department Foundation of China (200607MS035)Excellent Talents in Guangxi Higher Education Institutions (0834)
文摘One new species of the genus Tetrix LatreiUe, Tetrix nanpanjiangensis sp. nov. is described. This new species can be distinguished from Tetrix guibeiensis Zheng, Lu and Li, 2000 by： 1） in profile, vertex and frontal ridge forming a right angle; 2） frontal ridge slightly cocave between lateral ocellus; 3） anterior margin of pronotum straight; 4） anterior half of disc of pronotum slightly arched, posterior half flat in profile; 5） without a pair short longitudinal keels between shoulder; 6） third pulvillus of first tarsus longer than first and second. It appears similar to Tetrix tinkhami Zheng et Liang, 1998, but differs from the latter by it hind wings slightly not reaching top of hind process, width of midfemur narrower than width of tegmina. The type specimens are deposited in the Institute of Zoology, Shaanxi Normal University, China and Department of Chemistry and Life Science, Hechi University, China.
文摘One new species in the genus Ergatettix from Yunnan Province is described, Ergatettix longlingensis sp. nov. This new species is allied to Ergatettix serrifemorides Zheng ＆ Shi, 2009, but differs in： 1） antenna inserted below the lower margin of eyes; 2） hind process reaching the apex of hind femora; 3） hind wing reaching the apex of hind process; 4） lateral keels of prozona constructed backward; 5） midkeel of upper side of hind femur with two leaf-shaped protuberance near the basal part; 6） outside of lower side of hind femur not black; 7） hind tibia dark brown. The holotype is deposited in the Institute of Zoology, Shaanxi Normal University. A key to species of Ergatettix from China is presented.
