The group has recently been examined using molecular phylogenetics, using fairly comprehensive sampling.2
Stanger-Hall, Kathrin F.; Lloyd, James E. & Hillis, David M. (2007): Phylogeny of North American fireflies (Coleoptera: Lampyridae): Implications for the evolution of light signals. Molecular Phylogenetics and Evolution 45(1): 33-49. doi:10.1016/j.ympev.2007.05.013 PMID 17644427 (HTML abstract) /wiki/Molecular_Phylogenetics_and_Evolution ↩
Martin, Gavin J.; Stanger-Hall, Kathrin F.; Branham, Marc A.; et al. (1 November 2019). Jordal, Bjarte (ed.). "Higher-Level Phylogeny and Reclassification of Lampyridae (Coleoptera: Elateroidea)". Insect Systematics and Diversity. 3 (6). Oxford University Press ). doi:10.1093/isd/ixz024. /wiki/Insect_Systematics_and_Diversity ↩
Ballantyne, Lesley; Kawashima, Itsuro; Jusoh, Wan F.A.; Suzuki, Hirobumi (2022-12-30). "A new genus for two species of Japanese fireflies having aquatic larvae (Coleoptera, Lampyridae) and a definition of Luciola s. str". European Journal of Taxonomy. 855. Museum National D'Histoire Naturelle. doi:10.5852/ejt.2022.855.2023. ISSN 2118-9773. https://doi.org/10.5852%2Fejt.2022.855.2023 ↩