A checklist and adult key to the Chinese stonefly (Plecoptera) genera

Two new species and records of Neoperla (Plecoptera, Perlidae) from Yunnan, China

Two new species of the stonefly genus Neoperla, N.gaoligongshana sp. nov. and N.hajeki sp. nov. are described from Yunnan Province of southwestern China based on the morphological and distributional data, and the new species are compared with two congeners, N.wuzhishana Chen & Du, 2016 and N.orissa Stark & Sivec, 2015. Neoperlahubleyi Stark & Sivec, 2008 is recorded from Yunnan Province for the first time.

Notes on Neoperla sinensis Chu, 1928 and Neoperla anjiensis Yang amp; Yang, 1998, with descriptions of new species of Neoperla from China (Plecoptera: Perlidae)

The identity of Neoperla sinensis Chu, 1928 is confirmed in this paper. Two new species of Neoperla, N. huangshana Huo, Du Zhu, sp. nov. and N. pangi Huo, Du Zhu, sp. nov. are proposed from Anhui Province, southeast China, closely related to N. sinensis. Neoperla anjiensis Yang Yang, 1998 is newly recorded in Anhui Province.

The mitochondrial genome of the stonefly Togoperla limbata Pictet (Plecoptera: Perlidae)

We sequenced the complete mitochondrial genomes of Togoperla limbata which is the unique species distributed in Japan to provide supplementary data for future study in phylogenetic studies of Perlidae. This complete mitogenome of T. limbata is 15,915 bp long, including 37 typical genes and a control region as other stoneflies. Through the data analysis, the A + T content of the whole mitogenome, PCGs, tRNAs, rRNAs, and control region was 63.7%, 61.3%, 68.7%, 66.8%, and 74.8%. Most PCGs used typical start or stop codon except COI, ND5, and ND1 used the exceptional start codon and the COII and ND5 used the single T as the stop codon. Phylogenetic tree was constructed by using Bayesian inference (BI) and maximum-likelihood (ML) analysis based on the sequences of the 13 PCGs and two rRNAs and the result showed that subfamily Perlinae was a monophyletic group and the clade Togoperla and Paragnetina had a closer relationship.

A remarkable new genus and species of Nemourinae (Plecoptera, Nemouridae) from Sichuan, China, with systematic notes on the related genera

A remarkable new genus and species of Nemourinae, Sinonemura balangshana gen. et sp. n., is described from Balang Mountains, Sichuan, southwestern China. The description is based on morphology and molecular data. The Nemourinae genera related to the new taxon are re-evaluated on the basis of comparative functional morphology of male epiproct. Notes on the Asian distribution of the Nemourinae are also given.

The complete mitochondrial genome of a stonefly species, Suwallia bimaculata (Plecoptera: Chloroperlidae)

The stonefly Suwallia bimaculata belongs to the Chloroperlidae. The mitogenome of S. bimaculata was sequenced and annotated, the new representative of the complete mitogenome of the genus Suwallia. The entire genome of S. bimaculata is 16,125 bp totally with an A + T content of 68.5%, consisting of 13 protein-coding genes, two ribosomal RNAs, 22 transfer RNAs, and a 1,210 bp control region. All genes have the similar locations and strands with that of other published species of Plecoptera. Most PCGs use typical start/stop codon, whereas ND5 use GTG as start codon. And, COII and ND5 stopped with incomplete terminaton signal T. Phylogenetic analysis was performed using the Bayesian (BI) method and Maximum-likelihood (ML) methods based on 13 protein-coding genes and two ribosomal RNAs showed that S. bimaculata was the sister group to Suwallia teleckojensis and the clade Suwallia was closely to four perlodid species. More chloroperlid data was needed for further study of phylogeny in Chloroperlidae.

First mitochondrial genome of a stonefly from the subfamily Microperlinae: Microperla geei (Plecoptera: Peltoperlidae)

The stonefly Microperla geei is the fourth sequenced peltoperlid and the first entire mitochondrial genome of M. geei representing the subfamily Microperlinae. The nearly complete mitogenome of M geei is 15,216 bp in size, has 37 genes and one partial control region, which is the classical structure for insect mitogenome. All PCGs started with ATN, except ND1 and ND5 genes used TTG and GTG. Eleven PCGs used the termination codon TAA or TAG and the COII and ND5 genes stopped with a single T. Our phylogenetic topology tree supported Peltoperlidae was monophyletic and M. geei was a sister-group to the clade (Soliperla sp. + (Cryptoperla stilifera + Peltoperlopsis cebuano)). This study could provide new information for the further phylogenetic studies.