Exalcidion Monné, 1977
(Figs. 21–23)
Exalcidion Monné, 1977: 698 .
Type species — Alcidion tetramaston White, 1855 (original designation).
Diagnosis. Lateral tubercle of the prothorax prominent, placed centrally; centrobasal and median crests as projections of the integument, glabrous or with a few setae. Number of species currently included: 3.