Megalomyrmex cupecuara

Identification
M. cupecuara, sp. n., can be readly distin­guished from all other species of Megalomyrmex by its transversally depressed propodeum. Ac­cordingly this species received the name cupecu­ara, "cupe" meaning a hole (in the sense of a de­ pression) at the ••cuara" - back (dorsum) in Tupi. The types from Anchicaya  have  been  collected by W. L. Brown Jr. between 17 and 19 of July in 197 l . The specimens were found associated in pairs in each pin, a male and a worker, suggest­ing that they been collected in the same nest. The Museum of Comparative Zoology collection houses 12 more specimens from this sample (7 workers and 5 males).

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia.

Nomenclature

 *  cupecuara. Megalomyrmex cupecuara Brandão, 1990: 423, figs. 3, 11, 21-23 (w.m.) COLOMBIA.

Description
Mandibles smooth; anterior border of clypeus round, without median denticle, carinae or me­dian depression; frontal suture impressed; ca. 13 ocular facets at eye largest diameter: occipital margin not raised; 3-segmented club; promeso­ notal suture impressed dorsally interrupting the dorsal profile; mesostern um and metastern um without acrotergites; dorsal face and declivity of propodeum meeting in lateral tubercles. which delimit a median longitudinal depression: dorsal face transversally depressed (in side view); de­clivity smooth; dorsal anterior margin of petiole concave; dorsal margin of petiolar node, in frontal view, round; ventral face of petiole with an­teromedian denticle, without flange; ventral process of postpetiole globose. Pilosity: suberect  hairs  (length  from.2  to .5mm) uniformly distributed over the entire body surface. Color: antennae and legs light-yellow. body brown.
 * Worker

First funicular segment larger than scape and other funicular segments; notaulus and  parapsi­dal sutures impressed (although some specimens may have these sutures faintly impressed); dorsal margin of propodeum transversally depressed: declivity smooth: epipetiolar carina complete; petiolar node globose; postpetiole  larger and lower than the petiole, without ventral process.
 * Male