No abstract

Trichoptera are a group of the benthic organism, almost all of which live in water during their life cycle. Trichoptera usually develop through egg, larva, pupa, and moth stages. In its larval stage, Trichoptera usually live in water and are often called the caddisfly. In this study, the mitochondrial genome of Macrostemum floridum was analyzed. The total length of the mitochondrial genome is 15,424 bp and consists of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and one control region. The genome has a typical mitochondrial gene sequence of Trichoptera. Phylogenetic analysis of the mitochondrial genomes of 23 species of Trichoptera and Lepidoptera showed that M. floridum forms a monophyletic group with other species of Lepidoptera.

Hydropsyche fryeri belongs to the Trichopteridae family and builds nests in clean and unpolluted streams using stones. It also can be used as an indicator of water quality. Here, we describe the complete mitochondrial genome sequence of Hydropsyche fryeri. The mitochondrial genome is 15,676 bp long and contains 13 protein-coding genes, 22 tRNAs, 2 rRNAs and an AT-rich control region. Phylogenetic tree analysis shows that Hydropsyche fryeri is more closely related to the family Hydroptera than other Trichoptera.