Abstract
Macroptatus deppens Prena new species is described from México and El Salvador. Optatus stockwelli Prena new species is described from Panamá. Optatus Pascoe, 1889 and Macroptatus Heller, 1906 are maintained as distinct genera based on the development of the prosternal process separating the procoxae. Other previously used characters on the rostrum, tarsus, and metaventrite grade together across species or are deemed species-specific. Species of these genera appear to be associated with Annona fruits.
References
Barbosa, M.L.L. (2007) Sistemática filogenética da tribo Neotropical Optatini Champion, 1907 (Coleoptera, Curculionidae, Baridinae). INPA/UFAM, Manaus, xv + 113 pp. Available from: https://repositorio.inpa.gov.br/handle/1/12366 (accessed 26 January 2023).
Bercovici, A., Hadley, A. & Villanueva-Amadoz, U. (2009) Improving depth of field resolution for palynological photomicroscopy. Palaeontologia Electronica, 12 (2 & 5), 12 pp.
Casey, T.L. (1922) Studies in the rhynchophorous subfamily Barinae of the Brazilian fauna. Memoirs on the Coleoptera, 10, 1–520.
Castañeda-Vildózola, Á., Nava-Díaz, C., Hernandez-Fuentes, L.M., Valdez-Carrasco, J. & Colunga-Treviño, B. (2009) New host record and geographical distribution of Optatus palmaris Pascoe 1889 (Coleoptera: Curculionidae) in Mexico. Acta Zoológica Mexicana, Nueva Serie, 25 (3), 663–666. https://doi.org/10.21829/azm.2009.253669
Castañeda-Vildózola, Á., Morales-Trujillo, M.C., Franco-Mora, O., Valdez-Carrasco, J. & Mejía-Carranza, J. (2020) Un nuevo registro de Optatus palmaris Pascoe (Coleoptera: Curculionidae) asociado con Annona L. (Annonaceae) en el Estado de México, México. Revista Chilena de Entomología, 46 (3), 397–400. https://doi.org/10.35249/rche.46.3.20.07
Champion, G.C. (1907) Insecta. Coleoptera, vol. 4, pt. 5. Rhynchophora. Curculionidae. Curculioninae (continued). In: Godman, F.D. & Salvin, O. (Eds.), Biologia Centrali-Americana. Porter, London, pp. 137–240, pls. 9–13.
Heller, K.M. (1906) Neue Rüsselkäfer aus Central- und Südamerika. Stettiner Entomologische Zeitung, 67 (1), 1–50.
Hernández Fuentes, L.M., Valdez Carrasco, J., Illescas Riquelme, C.P., Maldonado Jiménez, E. & Orozco-Santos, M. (2012) Descripción morfológica del edeago de Optatus palmaris Champion [sic] (Coleoptera: Curculionidae). The Southwestern Entomologist, 37 (2), 225–229. https://doi.org/10.3958/059.037.0215
Lyal, C.H.C. (Ed.) (2010 ff.) Glossary of weevil characters. International Weevil Community Website. Available from: http://weevil.info/glossary-weevil-characters (accessed 26 January 2023)
Maldonado, E., Hernández-F., L.M., Luna-E., G., Gómez-A., J.R., Flores-C., R.J. & Orozco-Santos, M. (2014) Bioecology of Optatus palmaris Pascoe (Coleoptera: Curculionidae) in Annona muricata L. The Southwestern Entomologist, 39 (4), 773–782. https://doi.org/10.3958/059.039.0408
Pascoe, F.P. (1889) On the weevil genus Centrinus and its allies. The Annals and Magazine of Natural History, Series 6, 4, 321–330. https://doi.org/10.1080/00222938909460532