A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records Author Mera-Rodríguez, Daniela Universidad Nacional de Colombia, Facultad de Ciencias Agrarias, Museo Entomológico UNAB, Grupo Sistemática de Insectos Agronomía (SIA), Carrera 30 # 45 - 03, Bogotá D. C., 111321, Colombia; School of Life Sciences, Arizona State University, 427 E Tyler Mall, Tempe, AZ, 85281, USA. lmerarod@asu.edu Author Serna, Francisco Universidad Nacional de Colombia, Facultad de Ciencias Agrarias, Museo Entomológico UNAB, Grupo Sistemática de Insectos Agronomía (SIA), Carrera 30 # 45 - 03, Bogotá D. C., 111321, Colombia Author Sosa-Calvo, Jeffrey School of Life Sciences, Arizona State University, 427 E Tyler Mall, Tempe, AZ, 85281, USA; Department of Entomology, National Museum of Natural History, Smithsonian Institution, NHB CE 516, MRC 188, 1000 Constitution Ave NW, Washington DC 20560, USA. Author Lattke, John Departamento de Zoologia, Universidade Federal do Paraná, CEP 81531 - 980, Curitiba, PR, 19020, Brazil Author Rabeling, Christian School of Life Sciences, Arizona State University, 427 E Tyler Mall, Tempe, AZ, 85281, USA. text Check List 2020 2020-09-22 16 5 1205 1227 journal article 10.15560/16.5.1205 2b77aabb-48b0-4b25-b508-06776e6231e6 1809-127X 4059086 (1) Apterostigma angustum Lattke, 1997 Figure 2A, B Material examined. COLOMBIA : Antioquia 4 work- ers ; Amalfi ; 06°46′66″N , 075°06′42″W ; alt. 1045 m ; 25 Jun. 1997 ; F. Sernaleg .; UNAB 4365 ; Antioquia 6 workers ; Amalfi ; 06°51′26″N , 075°07′32″W ; alt. 1000 m ; 30 Jul. 1997 ; F. Sernaleg .; MEFLG 5786 ; Antioquia 2 workers ; Amalfi ; 06°45′42.43″N , 075°05′28.31″W ; alt. 1221 m ; Sep. 2006 ; M. A. Vanegas leg.; MEFLG 11086 ; Antioquia 2 workers ; Santafé de Antioquia ; 06° 33′41″N , 075°49′54″W ; alt. 600 m ; 06 Oct. 2000 ; E. Ver- gara , F. Sernaleg .; UNAB 4738 ; Antioquia 12 gy- nes , 20 workers ; Amalfi ; 06°51′26″N , 075°07′32″W ; alt. 1000 m ; 30 Jul. 1997 ; F. Sernaleg .; MEFLG 5786 ; Atlántico 1 worker ; Juan de Acosta ; 10°46′02″N , 075° 02′34″W ; alt. 117–250 m ; Feb.–May 2012 ; J. Castro , S. Royero leg.; UNAB 5457 ; Caquetá 8 workers ; Floren- cia ; 01°37′11″N , 075°36′14″W ; alt. 300 m ; 31 Mar. 2016 ; F. Sernaleg .; UNAB 4365 ; Chocó 1 worker ; Lloró ; 05° 29′00″N , 076°32′00″W ; alt. 115 m ; 04 Mar. 2001 ; J. Neita leg.; UNAB 4366 ; Chocó 4 workers ; Lloró ; 05°29′00″N , 076°32′00″W ; alt. 115 m ; 03 Nov. 2000 ; J. Neita leg.; UNAB 4366 ; Sucre 1 worker ; Ovejas ; 09°32′4.1″N , 075° 13′18.5″W ; alt. 277 m ; 4 Feb. 2016 ; H. Cadena leg.; ME- FLG 40895 . Identification. Frontal lobes in frontal view triangular; general cephalic profile in lateral view ovoid; compound eyes relatively small; and ventral mesopleural carina (epicnemial carina of Serna and Mackay 2010 ) absent ( Lattke 1997 ). Distribution. The specimens found in Colombia are all new records for the country as well as a major range ex- pansion to the west ( Fig. 1A ) as Apterostigma angustum was only known from Venezuela and French Guiana ( Lattke 1997 ; Fernández and Sendoya 2004 ).