Mitochondrial genome of a leaf-mining beetle Prionispa champaka Maulik (Coleoptera: Chrysomelidae: Cassidinae).

Prionispa champaka is a leaf-mining species which feeds on Pollia spp. and widely distributes in southern China. The complete mitogenomic sequence of P. champaka (Chrysomelidae: Cassidinae) was obtained and annotated, with a length of 20,494 bp. It was longer than those of other Chrysomelid species (not including Bruchinae) because of its much longer non-coding sequences. Gene arrangement and content of P. champaka was identical to the most common type in insects, and it was also biased toward AT (accounting for 78.4%). Phylogenetic analysis based on mitochondrial PCGs indicated that P. champaka was closely clustered with 5 other Cassidinae species, supporting the traditional morphological classification within Cassidinae.