Eusphinctus furcatus

In Thailand this species has been collected in evergreen forests (Jaitrong et al., 2016).

Identification
Eusphinctus furcatus is similar to Eusphinctus taylori Forel, 1900 in general appearance as they share the pygidial apex deeply notched (as seen from above), 11-segmented antenna, reddish brown body and swollen mesosoma. However, E. furcatus is easily separated from E. taylori by the following conditions: body larger (WL 1.68-1.78 mm in S. furcatus while WL 1.27 mm in E. taylori); petiole longer than broad (broader than long in E. taylori); body color darker (deep reddish brown in E. furcatus while light reddish brown in E. taylori). (Jaitrong et al., 2016)

Distribution based on Regional Taxon Lists
Oriental Region: India, Myanmar, Thailand.

Biology
A. B. Soans and W. L. Brown collected two colonies of E. furcatus in Kottiyoor, Kerala, India. One was located in leaf litter near a rotting log and the other one was found under a stone in a shaded creek bottom. There were about 50 workers in each of the observed nests, and one colony contained two ergatoid gynes (Brown 1975).

Nomenclature

 *  furcatus. Eusphinctus furcatus Emery, 1893a: cclxxv (w.) MYANMAR.
 * [Also described as new by Emery, 1895k: 457.]
 * Combination in Sphinctomyrmex (Eusphinctus): Emery, 1895k: 457.
 * Combination in Eusphinctus: Borowiec, 2016: 144.
 * See also: Bingham, 1903: 25; Brown, 1975: 75.