The Black-blotched Prominent caterpillar has a profile that is somewhat shaped like a camel. It is generally brown (though some are black or even yellow-orange), and has three humps on it with the largest one in the middle of its body. Smaller humps are also near the head and the rear end. Light chevrons may be visible on the top and sides.
The adult moth has a black patch on its brown wings, informing the species' common name. The caterpillar feeds on the leaves of common deciduous trees in eastern North America like oak, maple, and hickory.
The map above showcases (in blue) the states and territories of North America where the Black-blotched Prominent Moth Caterpillar may be found (but is not limited to). This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a species' given lifespan. Some species are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America.*NOTE: States/Territories shown above are a general indicator of areas inhabited by the Black-blotched Prominent Moth Caterpillar. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.