• [Justified emendation of spelling to Plagiolepis obscureiscapus: Emery, 1925d: 21.]
• Stärcke, 1936: 278 (q.)
• Subspecies of Plagiolepis pygmaea: Emery, 1925d: 21; Baroni Urbani, 1971c: 171.
• Status as species: Agosti & Collingwood, 1987a: 57; Agosti & Collingwood, 1987b: 280 (in key); Bolton, 1995b: 335; Poldi et al., 1995: 6; Petrov, 2006: 105 (in key).
• Junior synonym of Plagiolepis pygmaea: Boer, 2008: 486; Sharaf et al., 2011: 207.

Obsolete combinations

• Plagiolepis pygmaea obscureiscapus

Citations

• Agosti, D.; Collingwood, C. A. 1987a. A provisional list of the Balkan ants (Hym. Formicidae) and a key to the worker caste. I. Synonymic list. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 60:51-62. PDF
• Agosti, D.; Collingwood, C. A. 1987b. A provisional list of the Balkan ants (Hym. Formicidae) with a key to the worker caste. II. Key to the worker caste, including the European species without the Iberian. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 60:261-293. PDF
• Baroni Urbani, C. 1971c. Catalogo delle specie di Formicidae d'Italia (Studi sulla mirmecofauna d'Italia X). Memorie della Società Entomologica Italiana 50:5-287. PDF
• Boer, P. 2008. Plagiolepis obscuriscapa Santschi, 1923, a junior synonym of Plagiolepis pygmaea (Latreille, 1798) (Hymenoptera: Formicidae: Formicinae) and the use of pigmentation as discriminating character in ant taxonomy. Zoologische Mededelingen (Leiden) 82:485-488. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183:1-302. PDF
• Petrov, I. 2006. The ants of Serbia and Montenegro. [In Serbian.]. Posebna Izdanja. Srpska Akademija Nauka i Umetnosti 656:1-136. PDF
• Poldi, B.; Mei, M.; Rigato, F. 1995 ("1994"). Hymenoptera Formicidae. Checklist delle Specie della Fauna Italiana 102:1-10.
• Santschi, F. 1923a. Notes sur les fourmis paléarctiques. 4ème note. Boletín de la Real Sociedad Española de Historia Natural 23:133-137. PDF
• Sharaf, M. R.; Aldawood, A. S.; Taylor, B. 2011. The formicine ant genus Plagiolepis Mayr (Hymenoptera: Formicidae) in the Arabian Peninsula, with description of two new species. Transactions of the American Entomological Society 137:203-215. PDF
• Stärcke, A. 1936. Retouches sur quelques fourmis d'Europe. I. Plagiolepis xene nov. sp. et Pl. vindobonensis Lomnicki. Entomologische Berichten (Amsterdam) 9:277-279. PDF