Octostruma ascrobicula Longino

Longino, John T, 2013, A revision of the ant genus Octostruma Forel 1912 (Hymenoptera, Formicidae), Zootaxa 3699, pp. 1-61 : 16

Octostruma ascrobicula Longino , sp. nov.

(Figs 6F, 16, 45)

Type material. Holotype worker: ECUADOR, Manabi: 78 km NE Chone [-0.363 -79.739 ± 10km], 450 m, 9 Jun 1976, forest, ex sifted leaf litter (S. & J. Peck, B345) [MCZC, unique specimen identifier MCZ-ENT00511413]. Geographic range. Ecuador.

Diagnosis. Antennal scrobe very shallow, not distinctly margined; face with arcuate carina; frontal carinae extending back and joining termini of facial arc (in O. convallis, O. convallisur , and O. limbifrons , frontal carinae and facial arc do not join, the termini of the facial arc extend laterally beyond the termini of the frontal carinae); facial arc weak, semicircular, frontal carinae short, joining facial arc at level of compound eye (facial arc strong, less semicircular, frontal carinae longer, joining facial arc posterior to compound eye in O. ascrobis ); mesonotal foveolation extending onto dorsal pronotum, weakening anteriorly (mesonotum foveolate, pronotum contrastingly smooth and shining with sparse puncta in O. ascrobis ); HW 0.42 (0.46-0.51 in O. ascrobis ).

Description. Worker. HW 0.42, HL 0.41, WL 0.42, CI 103 (n=1). Differing from O. ascrobis in the characters of the Diagnosis; similar to O. ascrobis in most other respects (see complete description of A. ascrobis ).

The queen is unknown.

Etymology. The name refers to being a small version of O. ascrobis . It is a noun in apposition and thus invariant.