Capsus pygmaeus Zetterstedt, 1838: 279. HT: female, Sweden, Lapponia umensis [= prov. Västerbotten], Lycksele; MZLU.
Capsus pellucens Boheman, 1852b: 75 (syn. J. Sahlberg, 1868a: 176). HT: female, Sweden, Holmia [= Stockholm]; NHRS?
Tytthus insignis Douglas & Scott, 1866: 247 (syn. Saunders, 1876f: 113). LT (Carvalho & Southwood, 1955: 24): female, Great Britain, England, Esher; BMNH.
Tytthus pygmaeus f. flavomarginata Stichel, 1956b: 272.
Tytthus pygmaeus f. flavescens Stichel, 1956b: 272.