Apterostigma robustum Emery, 1896

Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, Check List 16 (5), pp. 1205-1227 : 1213

(14) Apterostigma robustum Emery, 1896

Figure 5C, D

Material examined COLOMBIA: Antioquia • 1 work- er; San Luis; 06°02′33.7″N, 074°59′39.9″W; alt. 1005 m; Mar. 1992; F. Sernaleg.; MEFLG 5170 ; Chocó • 4 workers; Quibdó; 05°40′40″N, 076°35′36″W; alt. 35 m; 23 Nov. 2001; J. Neita leg.; UNAB 4747 ; Vaupés • 3 gynes, 6 workers; Taraira; 01°04′00″S, 069°31′00″W; alt. 85 m; 14–20 May 2001, A. Sabogal leg.; UNAB 4746 .

Identification. Frontal lobes with each lateral margin convex and strongly curved ventrally; anterior margin of clypeus uniformly convex; mandible with 11 teeth that increase gradually in size towards the apical tooth; and propodeum in lateral view gradually higher than the metanotum ( Lattke 1997).

Distribution. Apterostigma robustum is distributed from Honduras in Central America south to Bolivia and Brazil, where it occurs in the states of Amazonas, Ma- ranhão, and Pará ( Kempf 1972; Lattke 1997; Fernández and Sendoya 2004).

Figures

Figure 5. Apterostigma and Cyphomyrmex species encountered in Colombia.A, B. Apterostigma reburrum, CASENT0901686/ R. Perry.C, D. Apterostigma robustum, CASENT0904977/ Z. Lieberman. E, F. Apterostigma pilosum complex, CASENT0603533/ A. Nobile. G, H. Cyphomyrmex cornutus, CASENT0923103/ W. Lee. Photographs obtained from the Antweb database (http://www.antweb.org).