Genus Atomacera Say, 1836 (Map of occurrence Fig. 8c) A. lepidula (Konow, 1908): Costa Rica, Guatemala, Mexico, Panama (Smith 1992), COLOMBIA. Chocó, Centro Administrativo Sautatá. Dentro del Bosque, PNN Los Katíos, 30m, 7°51’N, 77°08’W, malaise trap, 13 January 2004, P. López leg., 1 spec., (IAvH-E-139497). A. pubicornis (Fabricius, 1804): Bolivia, Brazil, Ecuador, Guyana, Peru, Suriname, Trinidad y Tobago, Venezuela (Smith 1992), COLOMBIA. Caquetá, Florencia, Vda. La Viciosa, Centro de Investigaciones amazónicas Macagual, 250m, 1°30’03”N, 75°36’22”W, light trap, 28 September 2016, C. Robayo leg., 1 ♀, (UNAB 758). Same data, malaise trap, 11 September 2016, L. González leg., 1 ♀, (UNAB 758). Same data, sweep net, 22 September 2016, J. Guerrero leg., 1 ♀, (UNAB 758). Same data, 23 September 2016, A. Amezquita leg., 2 ♀, (UNAB 758). Same data, sweep net, 23 September 2016, L. González leg., 1 ♀, (UNAB 758). Same data, sweep net, 27 September 2016, E. Parraga leg., 1 ♀, (UNAB 758). Same data, 28 September 2016, E. Cortez leg., 1 ♀, (UNAB 758). Putumayo, Cabaña La Paya, PNN La Paya, 330m, 0°02’S, 75°12’W, malaise trap, 15 September 2002, A. Morales leg., 2 spec., (IAvH-E-139495, IAvH-E- 151195). Same data, 01 July 2003, R. Cobete leg., 1 spec., (IAvH-E- 151196). Putumayo, Orito, Vda. San Vicente de Luzon, Fca. El Regalo, 356m, 0°32’37”N, 75°50’16”W, hand collecting, 03 March 2016, D. Molina leg., 1 ♀, (ICN-MHN). Putumayo, Villa Garzón, Vda. San Rafael, Fca. El Escondite, 317m, 0°47’41”N, 76°35’08”W, hand collecting, 24 February 2016, V. Ramirez leg., 1 ♀, (UNAB 758). Atomacera sp. COLOMBIA. Huila, Cabaña Cedros, PNN Cueva de Los Guácharos, 2100m, 1°37’N, 76°06’W, malaise trap, 06 March 2002, J. Fonseca leg., 1 spec., (IAvH-E-139498). Putumayo, Cabaña La Paya, PNN La Paya, 330m, 0°02’S, 75°12’W, malaise trap, 15 July 2002, A. Morales leg., 2 spec., (IAvH-E-151405 to 151406). Putumayo, Loma Baja, PNN La Paya, 320m, 0°06’S, 74°58’W, malaise trap, 01 July 2004, M. Trejos leg., 1 spec., (IAvH-E-139494).

Published as part of Malagón-Aldana, Leonardo A., Smith, David R., Vilhelmsen, Lars & Serna, Francisco, 2019, The sawflies and woodwasps (Hymenoptera: ' Symphyta') of Colombia, pp. 1-88 in Zootaxa 4633 (1) on pages 17-18, DOI: 10.11646/zootaxa.4633.1.1, http://zenodo.org/record/3335342