-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-Grasshoppers, Crickets, and Katydids (Order Orthoptera)

-Grasshoppers, Locusts, and Allies (Suborder Caelifera)

-Grasshoppers (Infraorder Acrididea)

-Superfamily Pyrgomorphoidea

-Gaudy Grasshoppers Family Pyrgomorphidae

-Subfamily Pyrgomorphinae

-Tribe Sphenariini

-Subtribe Sphenariina

-Genus Sphenarium

-Sphenarium occidentalis

Sphenarium occidentalis is a medium-sized grasshopper within the family Pyrgomorphidae, commonly known as "gaudy grasshoppers," and is endemic to the coastal and interior regions of western Mexico. This species is characterized by its robust, slightly spindle-shaped body and short, pointed head, with a coloration that often ranges from olive green to brownish-grey, sometimes featuring subtle yellow or orange accents. These grasshoppers are generally flightless due to their significantly reduced wings and are typically found in diverse habitats ranging from tropical deciduous forests to agricultural fields, where they feed on a variety of low-lying vegetation and crops.