A new species of the genus Stegelletina is described from caves of Andalucía Oriental (SE Iberian Peninsula). Stegelletina coprophila sp. n. is characterized by its body 386 to 536 mum long in females and 391 and 521 mum in males, lateral field with three incisures, lips bearing four tines, labial probolae 4 to 6 mum long and bifurcate, pharyngeal corpus 1.5 to 2.9 times isthmus length, spermatheca 18 to 43 mum long, postvulvar sac 0.5 to 1.6 times the corresponding body diameter long, female tail conical (24-34 mum, c = 14.2-17.2, c' = 1.7-2.3), male tail conical (26-35 mum, c = 12.1-17.1, c' = 1.4-1.8), spicules 20 to 25 mum long, and gubernaculum 10 to 13 mum long. Descriptions, measurements and illustrations, including SEM photographs, are provided for the species.