Abronia lythrochila, also known commonly as the red-lipped arboreal alligator lizard and escorpión arboricola de labios rojos in Mexican Spanish, is a species of lizard in the family Anguidae. The species is native to southern Mexico.
Abronia lythrochila is endemic to the state of Chiapas in Mexico.
Abronia lythrochila lives in montane dry pine-oak forest, at an elevation of .
Abronia lythrochila has a relatively small geographic range but is common within it. The species is threatened by deforestation, but much of its range is in protected areas, including Lagunas de Montebello National Park.
Abronia lythrochila can reach a total length (tail included) of about . The basic body color is greenish-olive, with irregular dark blotches. There are spiny horn-like scales on each side of the head. The lower labials are blood-red, to which the common names refer. The tail is prehensile.
Abronia lythrochila preys predominately upon insects.
Abronia lythrochila is ovoviviparous.