Chamaesphecia mysiniformis is a moth of the family Sesiidae. It is native to the Iberian Peninsula, southern France, and northern Morocco, but has been introduced to Victoria, Australia in 1997.
The larvae feed on Marrubium vulgare, Marrubium alysson, Marrubium supinum, Ballota nigra, Ballota hirsuta, Stachys germanica, Stachys ocymastrum, Stachys circinata and Sideritis montana.