Ectatomma ruidum

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Suriname, Trinidad and Tobago, Venezuela.

Nomenclature

 *  ruidum. Ponera (Ectatomma) ruida Roger, 1860: 306 (w.q.) BRAZIL. Borgmeier, 1934: 95 (m.); Wheeler, G.C. & Wheeler, J. 1952a: 131 (l.). Combination in Ectatomma: Mayr, 1862: 732. Senior synonym of scabrosa: Roger, 1862c: 292; of aztecum: Kugler, C. & Brown, 1982: 2.
 * scabrosa. Ectatomma scabrosa Smith, F. 1862b: 31 (w.) PANAMA. Junior synonym of ruidum: Roger, 1862c: 292.
 * aztecum. Ectatomma aztecum Emery, 1901a: 50 (w.) MEXICO. Junior synonym of ruidum: Kugler, C. & Brown, 1982: 2. See also: Brown, 1958g: 295.

Ectatomma scabrosa

Three worker syntypes in. The syntypes are flat-mounted, each on a roughly hexagonal piece of card. Along the basal border, behind the pin, is “Panama,” and on the reverse of the card the number “13.”