Psychopyge is a genus of trilobite, that lived during the upper Emsian (or Lower Devonian) and has been found in Germany (P. psyche) and Morocco.
Like all sighted Phacopina, Psychopyge has schizochroal eyes, the frontal lobe of the central raised area of the headshield (or cephalon), called glabella is expanded forward, lacks a rostral plate (the midfrontal part of the “seam” visible from the ventral side, defined by sutures), and the articulate middle part of the exoskeleton (or thorax) has 11 segments.
Like all Asteropyginae, Psychopyge has (in this case 5 pairs) prominent spines (or lappets) extending from the segments of the tailshield (or pygidium) in the area outside the axis (or pleural region).
The frontal lobe of the glabella is rounded, the border carries a long flat sword-shaped forward pointing extension.
There is a long vertical spine on the part of the glabella that corresponds with the border (called occipital ring), gradually curving backward.