-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-Beetles (Order Coleoptera​​)

-​Water, Rove, Scarab, Long-horned, Leaf, and Snout Beetles (Suborder Polyphaga)

-​Cucujiform Beetles (Infraorder Cucujiformia)

-Leaf Beetles and Allies (Superfamily Chrysomeloidea)

-Leaf Beetles (Family Chrysomelidae)​​

-Skeletonizing Leaf and Flea Beetles (Subfamily Galerucinae)

-Flea Beetles (Tribe Alticini)

-Subtribe Disonychina

-Genus Disonycha

-Disonycha glabrata

The Pigweed Flea Beetle has a red and black head. The red, shield-like pronotum has a black dot in the center, or three black dots, depending on the individual. The black elytra (wing coverings) have four yellow lines on them; two on the left connect at the bottom, just like the two on the right. Antennae are black, and legs are red and black. This species feeds on types of plants in the amaranth family.