However, the placement of Entomocorus is problematic due to the loss of some characteristics of that diagnose Auchenipteridae and Auchenipterini.

In the other species, transformed males have stiff, ossified maxillary barbels, an elongated dorsal-fin spine, ventrally-directed pectoral-fin spine hooks, very elongated pelvic-fin unbranched rays, and a rotated anal-fin base.

In E. melaphareus, an inconspicuous patch exists on the dorsal lobe of the caudal fin.

In E. radiosus, the distal half of both the dorsal and ventral caudal fin lobes is pigmented.

[1] Entomocorus are nocturnal, pelagic catfish that feed near the surface on invertebrates (primarily insects) and on zooplankton (mainly microcrustaceans).