Thaumatomyrmex atrox Weber 1939

Thaumatomyrmex atrox Weber, 1939 Materials Type status: Other material. Occurrence: catalogNumber: LEUA- 00000066493; recordedBy: Brandon S. Arredondo; individualCount: 1; sex: female; occurrenceID: B9C3CFFA-47CB-5C66-BE57-8CE85C4D678E; Taxon: scientificName: Thaumatomyrmex atrox; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Formicidae; genus: Thaumatomyrmex; specificEpithet: atrox; scientificNameAuthorship: Weber, 1939; Location: continent: South America; country: Colombia; countryCode: CO; stateProvince: Caquetá; county: Florencia; locality: Av. Caraño, Vía Florencia-Suaza; verbatimElevation: 919 m; locationRemarks: Collected in leaf Litter; verbatimCoordinates: 01°44'4.5"N 75°40'9.7"W; verbatimCoordinateSystem: WGS 84; Event: samplingProtocol: Winkler; eventDate: 2023-09-30; Record Level: language: es; collectionID: RNC: 270; institutionCode: Universidad de la Amazonia (UDLA); basisOfRecord: PreservedSpecimen Diagnosis This species is recognised by the fact that, in frontal view, the apex of the apical tooth of the mandible clearly exceeds the lateral margin of the head and the external margin of the eye (Fig. 19). Distribution Thaumatomyrmex atrox is widely distributed in the Neotropical Region (Brandão 1991, Rodríguez and Lattke 2012, Albuquerque et al. 2021). In Colombia, T. atrox is widely distributed in the Andean and Caribbean Regions (Vergara-Navarro and Serna 2013), with a single record from the Department of Amazonas (Jahyny et al. 2008). It is reported here for the first time in the Department of Caquetá. Biology The specimen was collected in leaf litter from the lowest cloud forest in they Andean-Amazonian transition zone.