Exhibits a robust and oval morphology typical of the Largidae family, with an adult body length ranging from 12 to 16 millimeters. The primary dorsal coloration is a matte black or dark grayish-black, which creates a sharp contrast against the bright reddish-orange margins of the pronotum and the hemelytra, a distinctive diagnostic character that defines its specific epithet. The head is triangular, featuring prominent, globular compound eyes and dark, four-segmented antennae. The scutellum is triangular and lacks spines, while the dorsal surface displays a finely punctured texture visible under close examination. The legs are sturdy and adapted for walking, without large spines on the femora, distinguishing them from other phytophagous hemipterans.

Geographical distribution: Is widely distributed across the Neotropical region of South America. Its presence is extensively documented in countries such as Argentina (especially in the northern and central provinces), Brazil (with abundant records in the Atlantic Forest and Cerrado biomes), Paraguay, Uruguay, and Bolivia. This geographical range demonstrates an outstanding tolerance to varied thermal and moisture gradients across the southern portion of the continent.

Habitat: Inhabits a diverse array of terrestrial ecosystems, showing a preference for ecotones, forest edges, shrubby savannas, humid grasslands, and agricultural fields. Additionally, this insect exhibits a remarkable capacity to colonize synanthropic environments, frequently appearing in urban gardens, public parks, orchards, and low-intensity crops, where it easily finds a high density of suitable host plants.

Feeding: Is a strictly phytophagous and highly polyphagous species, feeding by sucking sap from a broad range of vascular plants. Using its piercing-sucking mouthparts, it pierces tender tissues of plants belonging to families such as Solanaceae, Fabaceae, Asteraceae, and Malvaceae. Its diet includes fluids from young stems, leaf buds, developing fruits, and fallen seeds, from which it extracts vital nutrients required for growth and reproduction.

Behavior: Displays primarily diurnal habits, remaining highly active during peak sunlight hours on the foliage of host vegetation. This species is notably gregarious, particularly during its nymphal stages, forming dense clusters on tree trunks, branches, or the undersides of large leaves. As a chemical defense mechanism against predators like insectivorous birds, small reptiles, and spiders, it possesses metathoracic scent glands that secrete volatile compounds with a pungent, unpleasant odor when disturbed.

Reproduction: The reproductive cycle begins with a courtship process where the male locates the female using chemical and visual cues. Following copulation, which typically occurs during late spring or early summer, the female deposits her eggs. The cylindrical, whitish-to-yellowish eggs are laid in tight clusters on the underside of leaves, plant stems, or among leaf litter on the ground. Development is paurometabolous, progressing through five nymphal instars before reaching adulthood. Early-stage nymphs display a striking shiny metallic blue body with a red spot on the abdomen, representing an aposematic coloration that warns predators of their unpalatability.

Conservation status: Has not been formally evaluated by the International Union for Conservation of Nature (IUCN), placing it in the Not Evaluated (NE) category. Nevertheless, given its extensive geographical distribution, generalist ecological nature, and high adaptability to human-modified habitats, it is not currently considered to be facing any threats of extinction.