Adelomyrmex robustus Fernández, 2003

Longino, John T., 2012, A review of the ant genus Adelomyrmex Emery 1897 (Hymenoptera, Formicidae) in Central America, Zootaxa 3456, pp. 1-35 : 31

Adelomyrmex robustus Fernández, 2003

( Fig. 22 )

Adelomyrmex robustus Fernández, 2003: 26 , figs. 4 –6, 25–30, 72. Holotype worker: Mexico, Chiapas: 8 mi N Pueblo Nuevo, Sο 1 ȋstahuacán̓ 6 ΟΟΟ feet̓ 26﹣ 27 Aug ₁ 973 ̓ 1 eaf 1 ȋtter fοrestry f 1 οοr (A· Newtοn Nο· ₁ 2 a) [ΜƵSP] (nοt examȋned)· Paratype queens from Chiapas described.

Geographic range. Southern Mexico, Guatemala.

Biology. Adelomyrmex robustus occurs in mature cloud forest habitats, most often from 1600–1900 m elevation. It can be very abundant, occurring in over 90 % of quantitative miniWinkler samples and being frequent at baits on the forest floor. It even appears to forage on low vegetation, occasionally occurring in beating samples. In many sites it is sympatric with A. paratristani , which can also be abundant, and two can be difficult to distinguish in samples. Project LLAMA participant D. J. Cox observed multiple nests in dead wood at a site in Chiapas. Nests of both A. robustus and A. paratristani were found in a single dead gall that contained several chambers. In other cases nests were found in close proximity to Perissomyrmex snyderi nests, in the same piece of rotten wood. Nests occurred with brood dispersed in multiple chambers.

Figures

FIGURE 22. Distribution of material examined in this study: Adelomyrmex dentivagans sp. nov., A. foveolatus, A. longinoi, A. myops, A. robustus, A. silvestrii. Occurrences of A. myops in the Galapagos and A. silvestrii in northern Mexico (Tamaulipas) not shown.