Entomocorus radiosus is a species of driftwood catfish endemic to Brazil where it is found in the Rio Paraguay in the Pantanal region of Mato Grosso.

[1] It is the smallest known member of its genus growing to a length of 5.3 cm.

It can be distinguished from its congeners because its anal fin base is longer and has more branched anal fin rays.

[1] E. radiosus is a zooplanktivore which also eats insects; this species predominantly consumes microcrustaceans (cladocerans, copepods, and ostracods), but also fed on insects (ephemeropterans, coleopterans, and hemipterans).

This Auchenipteridae-related article is a stub.