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ACROPYGA

Uniform habitus; monomorphic; yellow; eyes small to absent; antennae with 9 or fewer segments; mandibles sublinear with 3-4 teeth. Subterranean; common but infrequently collected.

BRACHYMYRMEX

Uniform habitus; monomorphic; eyes normal; antennal segments filiform to gradually increasing in size, not forming a distinct club; antennae 9-segmented; apex of abdomen with inverted cone of setae. Arboreal and terrestrial; common.

CAMPONOTUS (including subgenus Dendromyrmex)

Diverse habitus; polymorphic with distinct major workers (except for two species in subgenus Dendromyrmex); antennal sockets separated from posterior clypeal margin; antennae 12-segmented. Arboreal; common.

MYRMELACHISTA

Uniform habitus; monomorphic; black, brown, or yellow; antennae 9 or 10-segmented with distinct 3-segmented club; abdomen somewhat tapered, and thus superficially similar to Crematogaster in the field. Arboreal; uncommon.

PARATRECHINA

Uniform habitus; monomorphic; 12-segmented antennae; apex of abdomen with inverted cone of setae; body with abundant stiff erect setae. Arboreal and terrestrial; common.


Page author:

John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu


Date of this version: 20 March 2006.
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