Lacunicambarus freudensteini, the banded mudbug, is a species of North American burrowing crayfish found in Alabama and Mississippi.

[2][3] The banded mudbug is a small (maximum size: ~2–2.5 inches) primary burrowing crayfish.

[3] Because of this species' exceedingly small range and overall rarity, this species is ranked as S1 (Critically imperiled) in both states where it occurs (Alabama and Mississippi) and has a NatureServe global rank of G1 (Critically imperiled).

[3] The banded mudbug is typically found burrowing in open, non-sloping grasslands with a shallow claypan.

[4] The common name "banded mudbug" refers to the orange bands on the dorsal side of this species and as the fact that it is a primary burrowing crayfish (often called "mudbugs").