What striking pattern is characteristically found on the ventral surface of the Western Hognose Snake?

A black and white checkered pattern

While the dorsal side of the Western Hognose Snake exhibits highly variable camouflage, the ventral surface—the underside—provides a much more reliable identification feature, especially when coupled with its defensive behaviors. The belly is typically pale, often described as white or yellow. Superimposed on this light background are dark markings. In many individuals and populations, these dark markings are arranged in a very distinct fashion: a black and white checkered pattern. Although in some instances these dark markings might merge or become less defined, appearing merely as dark blotches rather than a clear checkerboard, this strong black and white patterning is frequently cited as a definitive characteristic to confirm identity when the dorsal color is cryptic or confusing to an observer.