Atrytonopsis loammi, the Loammi skipper or southern dusted skipper, is a butterfly of the family Hesperiidae.

It is found in the United States on barrier islands in North Carolina and from South Carolina to Florida and Mississippi.

The North Carolina population has been described as a new species, Atrytonopsis quinteri, though the paper describing it does not discuss how the new species differs from the Florida populations of A.

Adults are on wing from early April to mid-May and mid-July to late August.

Speciation in an insular sand dune habitat: Atrytonopsis (Hesperiidae: Hesperiinae) - mainly from the southwestern United States and Mexico - off the Carolina coast.