Aenictus javanus

Identification
A member of the javanus species group.

Key to Aenictus species groups

Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Brunei Darussalam, Indonesia, Malaysia. Oriental Region: Thailand, Vietnam. Palaearctic Region: China.

Nomenclature

 *  javanus. Aenictus javanus Emery, 1896f: 245, attributed to Ritsema, fig. (m.) INDONESIA (Java). Forel, 1909d: 222 (w.). See also: Wilson, 1964a: 467; Jaitrong & Yamane, 2012: 57.

Worker
Wilson (1964) - HW 0.50 mm, HL 0.55 mm, SL 0.36 mm. Antenna 10-segmented. Mandible narrow, 4-toothed. Clypeal structure as in ceylonicus (q. v.). Parafrontal ridge absent. Occiput feebly convex, lacking a collar. Basal face of propodeum seen from side straight; propodeal junction forming an almost exact right angle. Subpetiolar process an acute tooth which curves posteriorly. Pilosity abundant; length of longest pronotal hairs 0.25 mm.

Head shining. Pronotum mostly shining. Remainder of mesosoma weakly microreticulate and subopaque; but, unlike the condition in ceylonicus, rugae are completely absent. Petiolar dorsum feebly microreticulate and feebly shining; remainder of petiolar more densely reticulate and subopaque to opaque. Postpetiole mostly shining. Color as in ceylonicus.

Type Material
Wilson (1964) - Type locality: Buitenzorg (Bogo), Java.

Additional References

 * Jaitrong, W. & Yamane, S. (2012) Review of the Southeast Asian species of the Aenictus javanus and Aenictus philippinensis species groups (Hymenoptera, Formicidae, Aenictinae). ZooKeys 193: 49–78, doi: 10.3897/zookeys.193.2768.