Temnothorax albispinus

Wheeler (1931) reports this species has been observed nesting in soil under stones or leaves.

Identification
A synonymized form (Wheeler 1931): from Mona Island, off Porto Rico..... A worker and a dealated female in my collection measure only 1.5 and 2.6 mm. respectively, whereas the worker and female of the typical albispina measure 2-2.5 and 4 mm. In both castes of pallipes the legs, antennal scapes and mandibles are yellowish white and the petiolar node is distinctly smooth and shining. The antennal funiculi are slightly brownish.

Distribution based on Regional Taxon Lists
Neotropical Region: Greater Antilles, Puerto Rico.

Nomenclature

 *  albispinus. Macromischa albispina Wheeler, W.M. 1908a: 139, pl. 11, figs. 3, 4 (w.q.) PUERTO RICO. Combination in M. (Antillaemyrmex): Mann, 1920: 408; in Antillaemyrmex: Wheeler, W.M. 1931b: 27; in Leptothorax: Baroni Urbani, 1978b: 413; in Temnothorax: Bolton, 2003: 271. Senior synonym of pallipes: Baroni Urbani, 1978b: 413.
 * pallipes. Antillaemyrmex albispina subsp. pallipes Wheeler, W.M. 1931b: 27 (w.q.) PUERTO RICO (attributed to Mann). [Macromischa albispina var. pallipes Mann, 1920: 424. Nomen nudum.] Subspecies of albispinus: Smith, M.R. 1937: 851. Junior synonym of albispinus: Baroni Urbani, 1978b: 413.