The order Raphidioptera, particularly the family Raphidiidae, is a rare insect group from China. In the present paper, Xanthostigma xanthostigma （Schummel, 1832） of Raphidiidae is newly recorded in China. The Chinese species of the genus Xanthostigma are redescribed and illustrated, with updated information of their geographical distributions.
Aspecies in the bark lice family Calopsocidae is recorded from China and Vietnam for the first time. Anewly recorded species of the genus Calopsocus Hagen, 1866, Calopsocus infelix, is described. Calopsocus infelix has an orange head, yellowish brown thorax, and purple abdomen. Wings are broad, dark, slightly leathery, and densely setose. Female genitalia are complete, with a setose external valve.
The complete mitochondrial genome of Acanthacorydalis orientalis （McLachlan） was determined and analyzed （GenBank accession number： KF840564）. This paper represents the first mitochondrial （mt） genome of the dobsonfly genus Acanthacorydalis. The mt genome is a typical circular DNA of 15 753 bp composed of 37 genes with an A＋T content of 76.7%. It has an ancestral gene arrangement of the insect mt genomes. Eleven of the 13 PCGs start with codon ATT and ATG,while several exceptions such as ATA and TTG respectively for atp 8 and nad 1 are also present. Five protein-coding genes end with a single T, while others have a termination codon of TAA or TAG. Most tRNAs are folded into the typical clover-leaf structure except for the trnS 1 whose dihydrouridine arm was a simple loop. The secondary structure of rrnl consists of five structural domains and 50 helices, while the rrns includes three domains and 34 helices. The control region has a stretches of Ts with a length of 22 bp but lacks obvious tandem repeat region. Both Bayesian inference and maximum likelihood （ML） analyses, based on all 13 protein-coding genes and two rRNA genes of the mt genomes, confirm the monophyly of Corydalinae and suggest that Acanthacorydalis, together with Corydalus, which is an endemic dobsonfly genus from the New World, belong to a monophyletic lineage.
Yi-Ran WangYu-Yu WangWen-Cheng ChangXing-Yue LiuDing Yang
