Adelomyrmex silvestrii

Adelomyrmex silvestrii is perhaps the most easily identified Adelomyrmex species, and it is widespread and abundant. It occurs in a wide variety of habitats, mature to secondary, wet to seasonally dry, and sea level to 1700 m elevation cloud forest. It can occur in over 70% of quantitative miniWinkler samples. In spite of its abundance, a nest has never been reported. (Longino 2012)

Identification
Key to Adelomyrmex of the New World mainland

Distribution
northern Mexico (Tamaulipas) to Costa Rica.

Distribution based on Regional Taxon Lists
Neotropical Region: Belize, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua.

Castes
Males have yet to be collected.

Nomenclature

 *  silvestrii. Apsychomyrmex silvestrii Menozzi, 1931b: 270, fig.6 (w.) COSTA RICA. Combination in Adelomyrmex: Kempf, 1972a: 18. See also: Fernández, 2003b: 28.

Queen
Similar to worker except for queen-specific characters of large compound eyes, ocelli, and enlarged mesosoma with queen-typical sclerites; pronotum smooth medially, reticulate rugose laterally; dorsal mesonotum mostly longitudinally rugose, weaker anteromedially; scutellum longitudinally rugose; katepisternum smooth and shining with thin strip of rugosity along posterior border; anepisternum and side of propodeum longitudinally rugose.