An annotated checklist of Ennominae (Lepidoptera, Geometridae) from Chiapas, Mexico

The subfamily Ennominae represents the most diverse lineage within the family Geometridae. Knowledge about the identity and number of Mexican geometrids is limited, and particularly in regions of disproportionate Lepidoptera diversity such as Chiapas. This study provides the first comprehensive checklist of the ennomine moths from Chiapas, Mexico, a key region from the Mesoamerican biodiversity hotspot. Our checklist is derived from an exhaustive review of national and international scientific collections, digital databases, and intensive field work. A total of 239 taxa is documented: 227 named species in 101 genera, including 167 new state records and 12 unidentified taxa that likely represent undescribed entities. Representatives of 12 ennomine tribes are reported, Ennomini being the most diverse, followed by Odontoperini, Palyadini, Boarmiini, Caberini, and Macariini. The inclusion of a new combination for the genus Besma is discussed based on comparative genital morphology. Our results add relevant regional faunistic information and help advance the knowledge of the geometrid fauna in Mexico, and ultimately provide a key step to understanding the biogeographical origin of this diverse moth group in the Mesoamerican biodiversity hotspot.