Cryptocerus

Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 187

Genus 1. CRYPTOCERUS .

Formica , pt., Linn. Syst. Nat. i. 965.

Cryptocerus , Latr. Hist. Nat. Crust, et Ins. xiii. 260.

Head more or less flattened above, quadrate or subquadrate, the sides expanded into flattened marginal plates, concealing or partly concealing the eyes. Antennae incrassate; in repose, re- ceived into a deep channel extending from their base above the eyes towards the vertex; the scape of the antennae; grooved beneath for the reception of the basal joints of the flagellum. Labrum transverse, its anterior margin deeply emarginate. La- bial palpi 3-jointed; maxillary palpi 5-jointed. Superior wings with one marginal and two submarginal cells. Abdomen oblong- ovate in the females, ovate in the males; the peduncle with two nodes.