Apterostigma carinatum Lattke, 1997

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 : 1208

(4) Apterostigma carinatum Lattke, 1997

Figure 2G, H

Material examined. COLOMBIA: Chocó • 1 worker; Lloró; 05°30′39″N, 76°32′40″W; alt. 115 m; 12 Dec. 2001; Y. Palacios, O. Mena leg.; UNAB 5458 ; Chocó • 1 worker; Lloró; 05°30′00″N, 076°31′00″W; alt. 97 m; 18 Nov. 2002; O. Mena, Y. Palacios leg.; UNAB 5458 ; Vaupés • 1 worker; Taraira; 01°04′00″S, 069°31′00″W; alt. 85 m; 4–20 May 2001; A. Sabogal leg.; UNAB 5458 .

Identification. Frontal lobe in full-face view either con- vex or triangular, with rounded apex; anterior margin of clypeus in full-face view convex, with shiny cuticular strip; dorsal mesosomal carina present, in lateral view low and uniform; petiole in lateral view elongate; dorsal and ventral curvatures of gaster in lateral view similar in size; lateral carina of gaster inconspicuous; and meta- coxa with dorsoposterior keel ( Lattke 1997).

Distribution. This species is known to occur in Ecua- dor and the Pacific coast of Colombia. The present record from Vaupés expands its geographic distribution to the Amazonian region of the country ( Fig. 1A ) ( Lattke 1997; Solar et al. 2016).

Figures

Figure 1. Geographic distribution of non-leaf-cutting fungus-growing ant species in Colombia. A. Apterostigma pilosum species-group. B. Genus Cyphomyrmex. C. Apterostigma auriculatum species-group, and genera Mycocepurus, Myrmicocrypta, and Mycetomoellerius. D. Genera Sericomyrmex and Paratrachymyrmex.

Figure 2. Apterostigma species encountered in Colombia. A, B. Apterostigma angustum, J. Sosa-Calvo. C–H. Figures taken by M. Esposito obtained from the Antweb database (http://www.antweb.org). C, D. Apterostigma auriculatum, CASENT0922035. E, F. Apterostigma bolivianum, CASENT0922036. G, H. Apterostigma carinatum, CASENT0922038.