Parides alopius, the white-dotted cattleheart, is an endemic Mexican butterfly in the family Papilionidae.

The underside of the wings are similar except the hindwing pink spots are more conspicuous.

[3] The larva is ringed with black and white bands and has yellow and reddish-brown fleshy projections.

The chrysalis is shaped very similar to that of the pipevine swallowtail (Battus philenor).

[4] The only recorded host plant for the white-dotted cattleheart is Watson's pipevine (Aristolochia watsonii).