Characterized by a robust and elongated body structure, this insect is a representative of the family Cerambycidae, specifically within the subfamily Cerambycinae, to which Chydarteres striatus belongs. Adults usually measure between 20 and 35 millimeters in length. Its exoskeleton exhibits a highly noticeable dark brown or pitch-black base coloration, strikingly decorated with transverse bright yellow or orange bands across the elytra, which serves as a highly visible warning (aposematism) to deter insectivorous predators. The antennae are exceptionally long, frequently exceeding the total body length in males, composed of eleven segments with reddish articulations. The pronotum is notably textured and rugged, featuring small, sharp lateral spines or tubercles that reinforce its heavily armored appearance.

Geographical distribution: Occurs extensively throughout the central and southern regions of South America. Its presence is widely recorded in Brazil (predominantly in the southeastern and southern states such as São Paulo, Paraná, and Rio Grande do Sul), northern Argentina (specifically within the provinces of Misiones, Chaco, and Corrientes), eastern Paraguay, and various woody areas of northern Uruguay.

Habitat: Inhabits subtropical and tropical forest ecosystems, showing a strong affinity for the Atlantic Forest biome, as well as the humid gallery forests found within the Cerrado and Chaco regions. It prefers environments with a dense forest canopy but requires open, sunlit clearings to facilitate its diurnal flight and mating behaviors. It is commonly associated with mature, well-preserved forests rich in decaying hardwood.

Feeding: Exhibits highly differentiated nutritional strategies depending on its developmental stage. Adult individuals are primarily saprophagous and nectarivorous, feeding on fermenting tree sap, ripe fallen fruits, and pollen or nectar from forest flowers. Conversely, the larval stage is strictly xylophagous, utilizing specialized digestive enzymes to digest cellulose from the dead, dry, or decaying wood of host trees, primarily belonging to families such as Fabaceae and Myrtaceae.

Behavior: Displays strictly diurnal activity patterns, with peak locomotion and flight occurring during the hottest hours of the day in late spring and summer. It is an agile and loud flyer, capable of traveling significant distances to find foraging or mating sites. When confronted by a threat, it employs an acoustic defense mechanism known as stridulation, rubbing the back edge of its pronotum against its mesonotum to produce a rasping squeak designed to startle predators.

Reproduction: Commences during the warm season, initiated by chemical and tactile courtship behaviors where females release sex pheromones. Following successful mating, the female searches for weakened, freshly dead, or fallen host trees to lay her eggs. Using a highly adaptable, telescoping ovipositor, she deposits individual eggs deep within bark crevices. Upon hatching, the larvae burrow into the sapwood, creating extensive tunnels as they grow over a period of one to two years. Once mature, they construct a pupal chamber near the wood surface, undergoing complete metamorphosis before emerging as winged adults during the early rainy season.

Conservation status: Currently classified as Not Evaluated (NE) by the International Union for Conservation of Nature (IUCN), meaning it does not hold an official global threat category. Nevertheless, its localized populations are highly vulnerable to habitat fragmentation, deforestation, and clean-forestry practices that systematically remove dead wood, which reduces the essential breeding substrate required for its larval survival.