Emplastus macrops, Dlussky & Rasnitsyn & Perfilieva, 2015

Dlussky, G. M., Rasnitsyn, A. P. & Perfilieva, K. S., 2015, The Ants (Hymenoptera: Formicidae) of Bol’shaya Svetlovodnaya (Late Eocene of Sikhote-Alin, Russian Far East), Caucasian Entomological Bulletin 11 (1), pp. 131-152 : 135

Emplastus macrops sp. n.

( Fig. 6)

Material. Holotype PIN 3429/1187, male.Biamo.

Description. Male. Body length 5 mm. Head with rounded occipital corners and convex occipital margin. Anterior clypeal margin straight. Eyes oval, very large, occupied most part of head sides. Gena about as long as scape thickness. Scape short, not reaching occipital margin, about as long as 1–3 funicular segments together. 1st and 2nd funicular segments nearly as long as wide; following 5segments longer than wide; distal segments not preserved.Mandibles well developed, triangular. Mesosoma nearly 2.5 times longer than head. Pronotum narrow, along midline less than 0.3 times as long as scutum. Scutum and scutellum convex in side view. Scutum about 0.4 times as long as alitrunk, not over-hanging pronotum in dorsal view. Propodeum rounded in side view. Petiole short, apparently triangular in side view. Wing venation not preserved.

Measurements of holotype, mm: AL 1.9; HL 0.77; ED 0.57; SL0.27; SctL0.74; SctL0.59; PtL0.24.

Comparison. Differs from other described species in having very large eyes.

Notes. Poorly preserved specimen PIN 3429/1193 (male, body length 4.5 mm) may belong to this species as well.

Etymology. Macrops is the Latin for “with large eyes”.