Polyplectropus impluvii is a species of caddisfly belonging to the family Polycentropodidae.

[3] Wise's original text (the type description) reads as follows: A small species.

Anterior wings medium brown, unicolorous except for a few faint, pale marginal spots about apex.

Outer process with a broad lateral portion, a long narrow spine arising above.

Inferior appendages moderately long, reduced before half way, thence slightly tapering, apex rounded.