Comparative morphology and key to Amydetinae genera, with description of three new firefly species (Coleoptera, Lampyridae) Author Campello, Lucas Programa de Pos-graduacao em Biodiversidade e Biologia Evolutiva-Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, A 1 - 107, Bloco A, Av. Carlos Chagas Filho, 373, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, Brazil lucas.campellog@gmail.com Author Vaz, Stephanie https://orcid.org/0000-0002-2616-640X Programa de Pos-graduacao em Biodiversidade e Biologia Evolutiva-Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, A 1 - 107, Bloco A, Av. Carlos Chagas Filho, 373, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, Brazil Author Mermudes, Jose R. M. https://orcid.org/0000-0003-2030-7483 Programa de Pos-graduacao em Biodiversidade e Biologia Evolutiva-Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, A 1 - 107, Bloco A, Av. Carlos Chagas Filho, 373, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, Brazil Author Ferreira, Andre L. D. Programa de Pos-graduacao em Biodiversidade e Biologia Evolutiva-Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, A 1 - 107, Bloco A, Av. Carlos Chagas Filho, 373, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, Brazil Author Silveira, Luiz F. L. Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, A 1 - 107, Bloco A, Av. Carlos Chagas Filho, 373, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, Brazil text ZooKeys 2022 2022-07-27 1114 131 166 http://dx.doi.org/10.3897/zookeys.1114.77692 journal article http://dx.doi.org/10.3897/zookeys.1114.77692 1313-2970-1114-131 D865EE0366174BA18064BBEE3AC72758 9864F9CE80F25184A1D17838955E5ACE Memoan fruhstorferi comb. nov. (Pic, 1942) Photinus fruhstorferi Pic, 1942: 16; McDermott 1966 : 39 Memoan ciceroi Silveira & Mermudes, 2013: 80 syn. nov. Remarks. After studying Maurice Pic's collection at the MNHN, we found that the holotype P. fruhstorferi of examined had all the diagnostic traits of Me. ciceroi (e.g., antenna with 10 antennomeres, apical antennomere subdivided, labial palp with one palpomere; Silveira and Mermudes 2013 ). Therefore, we propose that Me. ciceroi is a subjective junior synonym of P. fruhstorferi Pic, 1942. Pic (1942 : 16) described P. fruhstorferi as follows: " angustatus et elongatus , testaceus. Long. 6 m , Bresil , - Character par sa coloration claire jointe a sa forme elancee ". The current definition of Photinus is controversial, as pointed out by several firefly specialists (e.g., McDermott 1964 ), and needs taxonomic revision. In fact, P. fruhstorferi does not have characters normally found in Photinus , such as simple antennae shorter than 1/2 body length, pronotum with sides white and laterally expanded, abdominal tergites rounded, and phallobase relatively long ( McDermott 1964 ). Therefore, we transfer P. fruhstorferi to Memoan , generating Me. fruhstorferi (Pic, 1942) comb. nov. and synonymize it with Me. ciceroi , syn. nov., over which it has priority. Material examined. Holotype : Bearing the label: " Espirito Santo . Brasil . ex coll Fruhstorfer." [aged green label, typewritten]; "TYPE" [aged red label, typewritten]; "R Fruhstorferi" [aged white label, handwritten] (MNHN; Suppl. material 1: Fig. S 1).