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Former Cephalotes: uniform habitus; polymorphic; 11-segmented antennae with no club; deep antennal scrobes with eye situated below scrobe. Arboreal; uncommon.
Former Zacryptocerus: moderately uniform habitus; polymorphic with discrete major caste; dorsoventrally flattened; dorsolateral margins of mesosoma with laterally projecting teeth, spines, and/or flanges; antennae 11-segmented; deep antennal scrobes with eye situated at apex of scrobe; many species with glittering, silver-colored scales. Arboreal; common.
Moderately diverse habitus; monomorphic; 11-segmented antennae; deep antennal scrobes with eyes situated below scrobes. Arboreal; uncommon.
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. firstname.lastname@example.org