Comparative morphology of the genera with perpendicular parameres in Anomalini (Coleoptera, Scarabaeidae, Rutelinae) allows revalidation of the endemic Mexican genus Lamoana Casey, 1915 stat. rev. Author Madrigal, Kevin E9CBAADF-5E5C-4FE1-B75E-593DA71B70CD Licenciatura en Biología, Universidad Autónoma de Tlaxcala, Km 10.5 San Martín Texmelucan- Tlaxcala s / n, Ixtacuixtla de Mariano Matamoros, Tlaxcala 90120, Mexico. kevinmad42@gmail.com Author Zaragoza-Caballero, Santiago 505055A7-91E4-455C-905B-6E0E56C7BD98 Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70 - 153, 04510, Mexico City, Mexico. zaragoza@ib.unam.mx Author Ramírez-Ponce, Andrés 737C5C1F-1974-4EDF-BB32-4C5CA9173B00 Red de Biodiversidad y Sistemática, Instituto de Ecología, A. C. (INECOL), Carretera antigua a Coatepec 351, El Haya, 91073, Xalapa, Veracruz, Mexico. andres.ramirez@inecol.mx text European Journal of Taxonomy 2023 2023-12-13 910 175 199 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2369/10383 journal article 281947 10.5852/ejt.2023.910.2369 b82464cb-281e-45a5-b4e1-df698bbc8044 2118-9773 10382272 0C86F8BF-3B70-4822-9F89-9101F58949A8 Anomalini genera with perpendicular parameres Paucar-Cabrera (2003) described Balanogonia with two species. One of the diagnostic characters that defined it was the perpendicular position of parameres regarding the tectum. In the same publication, she noticed that there are other species that share this character like E. pilosipennis Ohaus, 1897 , S. guatemalicus Katbeh-Bader, 2000 and S. villosella Blanchard, 1851 (analyzed herein). This condition does not appear to be a diagnostic character that defines just a genus but an entire group of genera endemic to America, i.e., Moroniella , Callirhinus , Mazahuapertha . A comparison of the genitalia of Balanogonia with the genera mentioned before, raises doubt about the placement of B. freudei (Frey, 1968) (see Paucar-Cabrera 2003 ). This species has the parameres slightly inclined and neither totally perpendicular nor dorsoventrally depressed, the median lobe is not developed, and the distribution is very different between the two species ( Fig. 9 ). It must be said that besides the similar male genitalia morphology, this small group of genera also share specialized anthophilous feeding and diurnal habits. However, despite the similar genital morphological plan, differences between these genera are evident in both genital ( Figs 3–4 ) and somatic morphology ( Figs 5–6 ; Table 1 ). For example, Moroniella is distinguished by having the apex of the parameres directed externally with the median lobe having a needle-shaped apex ( Fig. 4c ), and a longitudinal keel on each side of the base of the median lobe ( Fig. 4d ); Balanogonia presents simple parameres, completely overlapping ( Fig. 4e ), with the median lobe broadly rounded at the apex ( Fig. 4f ); Callirhinus presents the apex of the parameres directed internally with the median lobe acute triangular ( Fig. 4g ), and with a uniform and slightly concave surface ( Fig. 4h ); Mazahuapertha presents the apex of the parameres rounded and curved towards outside with the median lobe subtriangular rounded ( Fig. 4i ), and with the base of the median lobe with uniform and slightly concave surface ( Fig. 4j ). Strigoderma villosella differs with respect to the others by being the only one with the parameres with a pre-apical notch on the external border ( Fig. 4a ), abundant setae on both faces ( Figs 3a , 4a–b ), as well as a conspicuous lobe on each side of the median lobe ( Figs 3a , 4b ).