Pogonomyrmex of the Navajo Reservation

Pogonomyrmex

This genus is found throughout the arid desert zones and the mid elevation mesa zones on up to Juniper Pinon Woodlands.

Key to Species (based on workers)

This key to workers is based on


 * Cole, A. C., Jr. 1968. Pogonomyrmex harvester ants. A study of the genus in North America. Knoxville, Tenn.: University of Tennessee Press, x + 222 pp.


 * Johnson, R.

At present 6 species of Pogonomyrmex are known within the Navajo Reservation, as additional ant species are discovered, they  will be added to the key below. Each Navajo ant species page links to an AntWiki species page.

1

 * Psammophore reduced to absent . . . . . 2


 * Psammophore present, well developed . . . . . 3

2 (1)

 * Mesosoma and petiole with short dark, straight hairs . . . . . Pogonomyrmex imberbiculus / Navajo species page)
 * Mesosoma and petiole with long white, flexuous hairs. . . .Pogonomyrmex huachucanus / Navajo species page)

3 (1)

 * Cephalic rugae very coarse, widely spaced, usually wavy. Anteroventral margin of peduncle with one to several erect hairs extending downward Pogonomyrmex rugosus /  Navajo species page
 * Anteroventral margin of peduncle lacking erect hairs. . . . . 4

4 (2)

 * Propodeum with spines . . . . . Pogonomyrmex occidentalis


 * Propodeum without spines . . . . . 5

5 (4)

 * . . . . . Pogonomyrmex maricopa


 * . . . . . Pogonomyrmex californicus