Mathew, S.M. and Prathapan, K.D. 2024. Morphology and taxonomic significance of the labrum in the flea beetle genus Chaetocnema Stephens, 1831 (Coleoptera, Chrysomelidae, Galerucinae, Alticini). Zootaxa. 5512, 2 (Sep. 2024), 185–199. DOI:https://doi.org/10.11646/zootaxa.5512.2.3.