References for species Theridion impegrum Keyserling, 1886

Species Reference Comment Distribution
Theridion impegrum Keyserling 1886b: 232, pl. 20, f. 286
(PDF not available.)  (Df). Brazil
Theridion impigrum Levi 1963c: 574, f. 217-218
(PDF not available.)  (f, invalid emendation).  
None noted here.
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