A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama

• Main Authors: Otto, Robert L., Muona, Jyrki, Córdoba-Alfaro, Jim
• Other Authors: Finnish Museum of Natural History, Zoology
• Format: Article in Journal/Newspaper
• Language: English
• Published: CENTER FOR SYSTEMATIC ENTOMOLOGY 2023
• Subjects: 1181 Ecology; evolutionary biology; Taxonomy; COSTA RICA; Eucnemidae; new taxa; Arctic; Alfaro
• Online Access: http://hdl.handle.net/10138/359487

More than 1300 specimens of Eucnemidae collected from Heredia Province in Costa Rica during the1990s Arthropods of La Selva (ALAS) survey were studied from 2018 through 2022. One new genus of falseclick beetle, Absensiugum Otto, Muona and Córdoba-Alfaro, is described. Nematodes teres Horn, from the Ne-arctic and Caribbean regions, is transferred to this new genus to form Absensiugum teres, new combination.Sixteen new species of false click beetle (Coleoptera: Eucnemidae) are described from Costa Rica. These newspecies are: Adelothyreus brevis, Adelothyreus costaricensis, Adelothyreus totus, Quirsfeldia stethonoides, Lacuspectinatus, Maelodrus costaricensis, Onichodon confluentus, Onichodon rufus, Isarthrus striatus, Absensiugumbrunneum, Dromaeolus americanus, Dromaeolus brunneus, Dromaeolus herediensis, Dromaeolus holdridgei,Deltometopus bicolor and Nematodes apicalis. Three additional records outside of the Heredia Province fromthe Osa Peninsula and Panama for Lacus pectinatus are included in this study. Identification keys are providedfor species of Adelothyreus Chevrolat, Onichodon Newman, Dromaeolus Kiesenwetter, Deltometopus Bonvou-loir and Nematodes Berthold in Costa Rica. Diagnostic differences are briefly noted for each species within theNeotropical region. A list of Eucnemidae from Heredia Province is provided. Peer reviewed