Airaphilus Redtenbacher, 1858

Alekseev, Vitalii I., Bukejs, Andris, Cooper, David M. L., King, Gavin A. & McKellar, Ryan C., 2019, A new species of Airaphilus Redtenbacher and new record of fossil Silvanidae (Coleoptera) from Eocene Baltic amber of the Sambian Peninsula, Baltic Journal of Coleopterology 19 (2), pp. 127-134 : 128-129

Genus Airaphilus Redtenbacher, 1858

Note. The studied amber specimens show the combination of characters unequivocally corresponding to the subfamily Silvaninae : pentamerous tarsi with tarsomere 4 the smallest; procoxal cavities closed; antennae non-filiform; antennal scape comparatively short (slightly longer than pedicel); dorsal side of head without longitudinal grooves or striae between eyes; and frontoclypeal suture absent. The beetle under consideration is assigned to the genus Airaphilus based on the combination of the following characters: (1) anterior margin of clypeus slightly rounded; (2) tarsomere 3 strongly lobed ventrally; (3) lateral margin of prothorax with more than six, small, regular denticles; (4) pronotal lateral denticles with long, posteriorly directed setae; (5) compound eyes large; (6) head without temples; (7) terminal maxillary palpomere elongate; and (8) antennal club indistinct, antennae gradually thickened towards apex.