Jałoszyński, P. “Redescription of Late-Instar Larva of Ptinella aptera (Guérin-Méneville, 1839) (Coleoptera: Ptiliidae)”. Zootaxa, vol. 3811, no. 4, June 2014, pp. 515–534, doi:10.11646/zootaxa.3811.4.5.