Suborder Strongylosomatidea

Strongylosomatidea is a suborder within the order Polydesmida (class Diplopoda). It represents one of the most diverse and widespread groups of flat-backed millipedes, particularly abundant in tropical and subtropical regions of Asia, Africa, and Australia.

Members of Strongylosomatidea are characterized by elongated, dorsoventrally flattened bodies with well-developed lateral keels (paranota) on most body segments. Like other polydesmid millipedes, adults typically have 20 body segments and lack eyes (ocelli). Body coloration varies widely among species, ranging from dark brown and black to brightly patterned forms with contrasting bands or spots.

These millipedes are primarily terrestrial and inhabit forest floors, leaf litter, decaying logs, and soil layers. They are detritivores, feeding mainly on decomposing plant material and fungi, thus playing an essential role in nutrient recycling and soil formation.

Many species within Strongylosomatidea possess chemical defense glands that secrete repellent substances to deter predators. Although some species may produce mild irritants, they are generally harmless to humans.

Ecologically, Strongylosomatidea contributes significantly to decomposition processes and supports forest ecosystem health by accelerating organic matter breakdown and enhancing soil structure.