Crematogaster erecta

De Oliveira et al. (2015), studying ant occupancy of Cecropia trees in southwest Bahia, Brazil, found four colonies of  opportunistically nesting in Cecropia pachystachya trees.

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Mexico, Panama, Peru, Suriname.

Biology
DaRocha et al. (2015) studied the diversity of ants found in bromeliads of a single large tree of Erythrina, a common cocoa shade tree, at an agricultural research center in Ilhéus, Brazil. Forty-seven species of ants were found in 36 of 52 the bromeliads examined. Bromeliads with suspended soil and those that were larger had higher ant diversity. Crematogaster erecta was found in 8 different bromeliads but was associated with twigs and bark, rather than suspended soil or litter.

Nomenclature

 *  erecta. Crematogaster erecta Mayr, 1866b: 902, pl. 20, fig. 12 (w.) COSTA RICA. Longino, 2003a: 64 (q.). Combination in C. (Orthocrema): Emery, 1922e: 135. Senior synonym of virgula: Kempf, 1968b: 381; of projecta: Longino, 2003a: 63.
 * virgula. Crematogaster virgula Forel, 1899c: 85, pl. 4, fig. 4 (w.) COSTA RICA. Forel, 1908b: 48 (q.). Combination in C. (Orthocrema): Emery, 1922e: 136. Junior synonym of erecta: Kempf, 1968b: 381.
 * projecta. Crematogaster (Orthocrema) brevispinosa st. projecta Santschi, 1925d: 230 (w.) SURINAM. Junior synonym of erecta: Longino, 2003a: 63.