The complete mitochondrial genome of the Bristletail Songmachilis xinxiangensis (Archaeognatha: Machilidae).

This study determined the complete mitochondrial genome of the bristletail Songmachilis xinxiangensis (Machilidae: Machilinae). It is a circular molecule of 15,473 bp long, and contains 37 genes typically found in other insects, with 13 protein-coding genes, 2 ribosomal RNA subunits genes, and 22 tRNA genes. The mitochondrial genome arrangement of S. xinxiangensis was similar to Pedetontus silvestrii (Machilidae: Petrobiinae) and Nesomachilis australica (Meinertellidae), but different from Trigoniophthalmus alternatus (Machilidae: Machilinae) in position of tRNA(Ala) and Petrobius brevistylis (Machilidae: Petrobiinae) in the position of tRNA(Tyr). The A+T content of total nucleotide and control region is 73.6% and 86%, respectively.