Habiti of Petalacmis species A, B P. triplehorni sp. nov., holotype (male, prior to dissection), habitus A dorsal B ventral B, C P. praeclarus (male, from Piracicaba, São Paulo) B dorsal C ventral E, F P. wittmeri holotype (male), habitus E dorsal F ventral. Scale bars: 1 mm (A–D).

 
 
  Part of: Lima da Silveira LF, Branham MA (2022) A new species of Petalacmis firefly from Bolivia, with a key to species (Coleoptera, Lampyridae). ZooKeys 1092: 63-77. https://doi.org/10.3897/zookeys.1092.80464