ABSTRACT
Atomaria); with or without subgenal spines; frons without lateral tubercles (except in some foreign Atomariini); antennal grooves present in Ephistemus, anterior part of gula without a transverse groove, with or without gular suture. Eyes well developed and finely faceted, with or without ocular setae. Clypeus more or less quadrate, with or without frontoclypeal suture. Antennal club 3segmented (1-or 2-segmented in some members of Caenoscelini and Atomariinae), funicle curved and conical or barrel-shaped. Mandible with well developed mola, incisor apex, and prostheca, dorsal tubercles present or absent, deep cavity or mycangia absent. Maxilla with brushlike galea and lacinia; apical spines and lateral setae present on lacinia; maxillary palpomeres more or less subequal to each other. Labium with mentum wider than long, with or without transverse ridge or line, with or without middle process; labial palpus 2-segmented with basal palpomere subequal to apical palpomere (Cryptophagini and Cryptosomatulini) or basal palpomere wider than apical palpomere (Atomariinae and Caenoscelini). Tentorium with anterior arms fused or separate, posterior part strap-like, without anterior median tendon.
