The Delicate-skinned salamander is a rare species of salamander, first described in 1939 from a holotype, a single specimen used to describe a species. The salamander, which is about 14cm long, is only found in the small town of San Martin, in central Mexico. It inhabits grasslands and forests and breeds in ponds and small streams.

A. bombypella is categorised as critically endangered as its area of occupancy is less than 10km square and as its habitat is generally in decline. Wheat farming has had a particular impact on the species, leading to pollution of the water it uses for breeding. Delicate-skinned salamanders are also threatened by introduced predatory fish that easily prey on their offspring. The species does not occur in any protected land, emphasising the urgent need for conservation efforts and research into captive breeding.