Adelomyrmex myops

Most records reveal A. myops to be a lowland species but with less habitat specificity than other Adelomyrmex. It occurs in mature forest of varying seasonality, from aseasonal wet forest to strongly seasonal dry forest. It also has been collected in disturbed habitats, including a cacao plantation in Honduras. There is a record from the Galapagos Islands, where it is probably introduced (Herrera & Longino 2008). It can be locally abundant, occurring in up to 20% of quantitative miniWinkler samples. The great majority of records are from 600 m elevation or lower, but an anomalous site is Cerro Musún in Nicaragua. Adelomyrmex myops occurred in Winkler samples from 1000–1100 m, but not in quantitative Winkler sampling around 700 m. (Longino 2012)

Identification
Longino (2012) - In some cases, the dorsal promesonotal rugae of workers are somewhat longitudinally oriented, blurring the distinction between A. myops, Adelomyrmex tristani, and Adelomyrmex paratristani. The dorsal rugae are never strongly linear, like most collections of A. tristani and A. paratristani. Nearly all A. tristani have strongly linear dorsal rugae, but there is more variation in A. paratristani, where some workers have strongly vermiculate rugae, approaching the condition of some A. myops workers. In other words, A. myops occupies the range of variation from completely reticulate rugose to strongly vermiculate rugose with some longitudinal orientation, while A. paratristani ranges from the latter condition to having completely linear, parallel, longitudinal rugae. Adelomyrmex myops has dorsal pilosity more like A. tristani than A. paratristani. This is most evident on the gaster, where A. paratristani usually has sparse, long, erect setae, with very reduced presence of more decumbent setae beneath them, while A. myops has a denser brush of erect and subdecumbent setae.

Queens of A. myops have an abrupt transition from longitudinal rugae on the mesonotum to coarse, reticulate rugosity on the scutellum. In A. tristani and A. paratristani, the scutellum has longitudinal, subparallel rugae.

Key to Adelomyrmex of the New World mainland

Distribution
Guatemala to Panama, Ecuador (Galapagos).

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia, Costa Rica, Ecuador, Galapagos Islands, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru.

Nomenclature

 *  myops. Apsychomyrmex myops Wheeler, W.M. 1910a: 261, fig. 2 (w.) GUATEMALA. Wheeler, G.C. & Wheeler, J. 1955b: 29 (l.); Fernández, 2003b: 25 (q.). Combination in Adelomyrmex: Kempf, 1972a: 18.