Complete mitochondrial genome and phylogenetic position of the gall aphid <i>Chaetogeoica ulmidrupa</i> (Hemiptera: Aphididae)

We sequenced two complete mitochondrial genomes of <i>Chaetogeoica ulmidrupa</i>, a gall-forming aphid on <i>Pistacia chinensis</i>. Each genome consists of 13 protein-coding genes, 22 tRNA genes, two rRNA genes and a control region, with a strong A+T bias (∼85%). All protein-coding genes initiate with ATN codon and terminate with TAA, except for ND4 and COX1 ending with a single T. Phylogenetic analysis strongly supported that <i>C. ulmidrupa</i> was sister to <i>C. yunlongensis</i> and together they formed a clade with <i>Slavum lentiscoides</i>, all three species of which feed on the primary host plant <i>P. chinensis</i> to form galls.