To explore the characteristics of the mitochondrial genome (mitogenome) of the squeaking silkmoths Rhodinia, a genus of wild silkmoths in the family Saturniidae of Lepidoptera, and reveal phylogenetic relationships, the mitogenome of Rhodinia fugax Butler was determined. This wild silkmoth spins a green cocoon that has potential significance in sericulture, and exhibits a unique feature that its larvae can squeak loudly when touched. The mitogenome of R. fugax is a circular molecule of 15,334 bp long and comprises 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and an A + T-rich region, consistent with previous observations of Saturniidae species. The 370-bp A + T-rich region of R. fugax contains no tandem repeat elements and harbors several features common to the Bombycidea insects, but microsatellite AT repeat sequence preceded by the ATTTA motif is not present. Mitogenome-based phylogenetic analysis shows that R. fugax belongs to Attacini, instead of Saturniini. This study presents the first mitogenome for Rhodinia genus.

为探索鳞翅目土蛾科野生蚕蛾Rhodinia Rhodinia线粒体基因组(mitogenome) 的特征，揭示系统发育关系，确定了Rhodinia fugax Butler 的有丝分裂基因组。这种野生蚕蛾织出的绿色茧在养蚕中具有潜在的意义，并表现出一种独特的特征，即它的幼虫在被触摸时会发出响亮的吱吱声。R. fugax的有丝分裂基因组是一个长15,334 bp 的环状分子，包含 13 个蛋白质编码基因、两个核糖体 RNA 基因、22 个转移 RNA 基因和一个富含 A + T 的区域，这与之前对土星科物种的观察结果一致。R. fugax的 370-bp A + T-rich 区域不包含串联重复元件，并且具有 Bombycidea 昆虫共有的几个特征，但不存在前面有 ATTTA 基序的微卫星 AT 重复序列。基于丝裂基因组的系统发育分析表明，R. fugax属于 Attacini，而不是 Saturniini。这项研究提出了罗迪尼亚属的第一个有丝分裂基因组。