Leptothorax santra

Japanese Name

Bohnin-muneboso-ari

Terayama, M. & K. Onoyama (1999) The ant genus Leptothorax Mayr (Hymenoptera; Formicidae) in Japan. Memoirs of the Myrmecological Society of Japan 1: 71-97.

Total length of workers around 2.5 mm. Body color yellowish brown; head darker than mesosoma and gaster. Antennal scapes slightly exceeding posterior margin of head in full face view. Dorsal outline of mesonotum weakly convex. Metanotal groove very weakly incised dorsally. Propodeal spines acute and relatively short: each longer than its basal width when viewed laterally, with the dorsal margin forming a blunt angle and the posterior half of the spine somewhat downcurved. Petiolar peduncle relatively short; node in profile an inverted U-shape, its lateral margins gradually converging towards the dorsum. Sides of mesonotum and propodeum with predominantly longitudinal rugulae.

A rare species. The known specimens were collected from leaf litter samples using a Berlese funnel.

Ogasawara Is (Chichi-jima I., Ani-jima I.).