The complete mitochondrial genome of <i>Bibio hordeiphagus</i> Yang &amp; Luo (Diptera: Bibionidae)

<i>Bibio</i> Geoffroy, 1762 is a species-rich genus within the family Bibionidae. In this study, we present the complete mitochondrial genome of <i>Bibio hordeiphagus</i> Yang and Luo 1988 for the first time. Complete mitochondrial genome of <i>B. hordeiphagus</i> is 15,496 bp in length, comprising 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes, and a control region. The nucleotide composition of mitochondrial genome of <i>B. hordeiphagus</i> was 40.55% of A, 39.02% of T, 8.37% of G, and 12.05% of C. Based on the sequencing and annotating results, we conducted a preliminary phylogenetic analysis of Bibionomorpha. Our findings support the monophyly of both family Bibionidae and genus <i>Bibio</i>, with the family Bibionidae identified as the sister group to Sciaridae and Mycetophilidae. This study encompasses all reliable annotated mitochondrial genome data for Bibionidae and analyzed the higher-level phylogenetic relationships within the Bibionomorpha from the perspective of mitochondrial genome data.