Emplastus Donisthorpe, 1920

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

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Emplastus Donisthorpe, 1920


Morphogenus Emplastus Donisthorpe, 1920 

Type species Emplastus emeryi Donisthorpe, 1920  (= Dolichoderus britannicus Cockerell, 1915  ), by original designation.

Diagnosis (for fossil imprints). Gynes and males of fossil ants not preserved well enough to fit orthotaxa, and with following combination of traits: size medium, head subrectangular with rounded occipital corners; mandibles triangular with denticulate masticatory margin; propodeum rounded in side view, petiole in side view with thick scale (gynes) or triangular (males). Forewing with cells1+2r, 3r, rm and mcu closed; cell3r with apex touching wing fore margin, 1RS vertical to R or slightly proclined. Icu > 1.45, Icua > 1.2. Gaster without constriction between 1st and 2nd segments.

Species included. Emplastus britannicus Cockerell, 1915  , E. hypolithus Cockerell, 1915  , E. gurnetensis Donisthorpe, 1920  , and E. kozlovi Dlussky et Perfilieva, 2014  . Bembridge Marls, Isle of Wight, UK; Late Eocene or Early Oligocene [ Cockerell, 1915; Donisthorpe, 1920; Antropov et al., 2014].