Octostruma inca Brown & Kempf

Longino, John T, 2013, A revision of the ant genus Octostruma Forel 1912 (Hymenoptera, Formicidae), Zootaxa 3699, pp. 1-61 : 37

Octostruma inca Brown & Kempf , 1960

(Figs 27, 44)

Octostruma inca Brown & Kempf 1960: 185, figs. 16, 29. Holotype worker: Peru, "unknown locality... probably on the Amazon drainage" (W. Weyrauch, No. 732) [MZSP]; paratype workers: same data as holotype [MZSP, MCZC]; non-type queen: Bolivia [MCZC] (MCZ paratype workers and non-type queen examined). Description of larva: Wheeler & Wheeler, 1977: 600.

Geographic range. Colombia, Peru, Bolivia.

Comments. The combination in the worker of large compound eyes with many ommatidia, antennal scrobe a shallow impression without carinate rim, base of scape lacking flattened anterior lobe, and HW > 0.68 uniquely identify this species. The measurements reported in Brown and Kempf (1960) for the holotype of O. inca are considerably larger than the six workers measured for this report. HW of six measured workers, including three paratypes, is 0.69-0.87; HW of the holotype is reported as 0.91. The larva described by Wheeler and Wheeler (1977) was a specimen from Colombia sent by W. L. Brown. MCZC material examined for this report includes what appear to be two nest series collected by W. L. Brown in Dept. Valle, Colombia.