Burrowing ability: Certain morphological characters indicate a slight adaptation for digging: blunt tips of the claws, slight convergence of the claw dorsal plate
edges, weak development of the digital pads, and structural reduction and increased toughness of the interdigital and metapodial pads.
This clade is supported by ten unambiguous synapomorphies (eight in both optimizations, ACCTRAN and DELTRAN) such as the number of tarsomeres of tarsus I-IV (characters 28-30), the elongate dorsal plate
of male genitalia (character 35, state 0) and the stylus of male genitalia enfolded by the dorsal plate
(character 42, state 1).
This species could be differentiated form the species of genus Psychoda latreille by the body coloration where members of genus Psychoda are much lighter in color, in addition to the number of dorsal plates which they are less than 26 in number.
5 mm, the posterior 7 or 8 dorsal plates are only easily seen, sometimes additional plates are visible anteriorly and the siphon is slender, 7 to 8 times as long as broad (1, 17-18).
Some scientists propose that the creature's dorsal plates
had a defensive role, as well.
10A); head blue or gray-blue, dorsal plates
distinctly edged with black; supralabials with black on dorsal surface; ventrals light yellow or cream, with bold black transverse patches, usually extending to midventral line.