Lygaeosoma sardea Spinola, 1837a: 256. LT (Péricart, 1998c: 8): female, Italy, Sardinia; MSNT.
Heterogaster reticulatus Herrich-Schaeffer, 1838: 77 (syn. A. Costa, 1853: 72, suspected; Baerensprung, 1860: 8). STS: female, Hungary and Spain; lost.
Pachymerus variabilis Rambur, 1839: 152 (syn. Baerensprung, 1860: 8). LT (Péricart, 1999d: 85): female, Spain, Granada; BMNH.
Lygaeosoma reticulatum var. numidicum Puton, 1887a: 96 (considered as infrasubspecific form by Seidenstücker, 1960a: 6). LT (Péricart, 1996c: 107): male, Tunisia?, Bir-Marboth; MNHN.
Lygaeosoma reticulatum f. hungarica Stichel, 1957b: 81. STS?: Hungary.