Lachnomyrmex pilosus
Creators: name: Arredondo, Brandon S.
name: Carreño-Guevara, Yennifer
name: Gutierrez-Villanueva, Yenifer
name: Duran-Bautista, Ervin Humprey
name: Gamboa-Tabares, Jean
name: Guerrero, Roberto J.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Lachnomyrmex
Lachnomyrmex pilosus

description: Lachnomyrmex pilosus (Weber, 1950)
Materials
Type status: Other material. Occurrence: catalogNumber: LEUA- 00000066489; recordedBy: Fernando Celis; individualCount: 1; sex: female; occurrenceID: BBDB39C8-D45C-573F-B971-66C47CB996AE; Taxon: scientificName: Lachnomyrmex pilosus; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Formicidae; genus: Lachnomyrmex; specificEpithet: pilosus; scientificNameAuthorship: (Weber, 1950); Location: continent: South America; country: Colombia; countryCode: CO; stateProvince: Caquetá; county: Florencia; locality: Vda. Sucre, Fca. La Fortaleza; verbatimElevation: 1266 m; locationRemarks: Collected in leaf Litter; verbatimCoordinates: 01°48'22.1"N 75°39'12.7"W; verbatimCoordinateSystem: WGS 84; Event: samplingProtocol: Winkler; eventDate: 2023-08-12; Record Level: language: es; collectionID: RNC: 270; institutionCode: Universidad de la Amazonia (UDLA); basisOfRecord: PreservedSpecimen
Type status: Other material. Occurrence: catalogNumber: LEUA- 00000066490; recordedBy: Fernando Celis; individualCount: 1; sex: female; occurrenceID: 2E423463-C27D-5D18-9517-C51E6789FAB1; Taxon: scientificName: Lachnomyrmex pilosus; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Formicidae; genus: Lachnomyrmex; specificEpithet: pilosus; scientificNameAuthorship: (Weber, 1950); Location: continent: South America; country: Colombia; countryCode: CO; stateProvince: Caquetá; county: Florencia; locality: Vda. Sucre, Fca. La Fortaleza; verbatimElevation: 1266 m; locationRemarks: Collected in leaf Litter; verbatimCoordinates: 01°48'22.1"N 75°39'12.7"W; verbatimCoordinateSystem: WGS 84; Event: samplingProtocol: Winkler; eventDate: 2023-08-12; Record Level: language: es; collectionID: RNC: 270; institutionCode: Universidad de la Amazonia (UDLA); basisOfRecord: PreservedSpecimen
Type status: Other material. Occurrence: catalogNumber: LEUA- 00000066488; recordedBy: Yenifer Gutierrez; individualCount: 1; sex: female; occurrenceID: C7D8443B-C1D1-5884-9010-081D0C6F5090; Taxon: scientificName: Lachnomyrmex pilosus; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Formicidae; genus: Lachnomyrmex; specificEpithet: pilosus; scientificNameAuthorship: (Weber, 1950); Location: continent: South America; country: Colombia; countryCode: CO; stateProvince: Caquetá; county: Florencia; locality: Av. Caraño, Vía Florencia-Suaza; verbatimElevation: 1579 m; locationRemarks: Collected in leaf Litter; verbatimCoordinates: 01°43'24.4"N 75°43'10"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 uncommon species is recognised by the following characteristics: inner surface of antennal scrobes and first gastral tergum smooth and shiny; body covered by long, flexible hairs; mesosoma covered fine, short striation; in lateral view, promesonotum strongly convex, superior to level of propodeum; propodeal spines less than twice as long as distance between their bases. The specimens collected in the eastern Amazon Basin are smaller than the Brazilian populations (Fig. 10) (Feitosa and Brandão 2008).
Distribution
This is a Neotropical species reported from Brazil, Ecuador, Peru and Venezuela and is little known in Colombia with records from Amazonas, Meta and Nariño (Feitosa and Brandão 2008). It is reported here for the first time in the Department of Caquetá.
Biology
Species common in the leaf litter of humid forests, distributed from 200 to 1400 m elev.
description: Published as part of Arredondo, Brandon S., Carreño-Guevara, Yennifer, Gutierrez-Villanueva, Yenifer, Duran-Bautista, Ervin Humprey, Gamboa-Tabares, Jean & Guerrero, Roberto J., 2025, Soil and leaf litter ants from the Amazon Region offer new distribution records for Colombia, pp. e 142813 in Biodiversity Data Journal 13 on page e142813, DOI: 10.3897/BDJ.13.e142813