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This key is based on Brown (1978).
10a. Large species with long mandibles, combined length of head and closed mandibles greater than 2.2mm; medial borders of mandibles with two or more prominent, serially arranged teeth (in addition to the 3 teeth at apex): striatulus
10b. Species with combined length of head and closed mandibles less than 2.2mm; medial borders of mandibles without prominent teeth proximal to the single preapical tooth or angle: 30
30a. Petiolar node as seen from the front or rear with apical margin rounded, slightly flattened, or weakly emarginate in the middle, but in this case, the free corners are always broadly rounded: orchidicola
30b. Petiolar node as seen from the front or rear with apical margin distinctly concave, the 2 free corners forming angles or produced as teeth: 40
40a. Larger species, combined length of head and closed mandibles greater than 1.75mm; second segment of antennal funiculus at least twice as long as broad: 50
40b. Smaller species, combined length of head and closed mandibles less than 1.75mm; second segment of antennal funiculus less than twice as long as broad: mayri
50a. Eyelength less than 0.08mm: minans
50b. Eyelength greater than 0.08mm: diegensis
Brown, W. L., Jr. 1978. Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, tribe Ponerini, subtribe Odontomachiti. Section B. Genus Anochetus and bibliography. Studia Entomol. 20:549-652.
John T. Longino, The Evergreen State College, Olympia WA 98505 USA.firstname.lastname@example.org
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