This is one of our less common household inhabitants only to be found in human habitation likes its close relative Daddy Long-legs Spider (Pholcus phalangioides). It is a tiny long-legged pale spider with a dark band covering the middle of the thorax.
The abdomen is globular and tinted bluish unlike that of Phocus which is tubular and greyish. Males and females measure no more than 2.5mm. Psilochorus generally hides away in dark cellars, often wine cellars, where it spins an open tangle of threads that over time develop a sheet.