L.  Borowiec, Lapeva-Gjonova, A., and Salata, S., ?Three species of Aphaenogaster Mayr, 1853 (Hymenoptera: Formicidae) new to the Bulgarian fauna?, Acta Zoologica Bulgarica, vol. 71, no. 4, pp. 613-616, 2019.

V.  Antonova, ? First record of the slave-maker ant Harpagoxenus sublaevis (Nylander, 1849) from Bulgaria (Hymenoptera: Formicidae)?, Myrmecological News, vol. 12, pp. 1-2, 2009.

A.  Lapeva-Gjonova, ?First records of three ant species (Hymenoptera: Formicidae) from Bulgaria?, Myrmecological News, vol. 14, pp. 1-3, 2011.