The largest beetle species in Louisiana belong to the rhinoceros beetle subfamily measuring up to 63 mm. Another beetle species found here since the 1990s is the Asian lady beetle, primarily active during winters. Though their increased numbers within the household could cause a menace, these species are not harmful and do not cause significant damage. Of the smaller beetles, the carpet beetle species and the khapra beetle infest clothes, furniture, fabric, and food items.

Largest Beetles: Asiatic Rhinoceros Beetle, Eastern Hercules Beetle

Smallest Beetles: Varied Carpet Beetle, Black Carpet Beetle, Khapra Beetle

Most Common Beetles: Asian Lady Beetle, Black Carpet Beetle, Varied Carpet Beetle