Temnothorax tricarinatus (Emery)


Temnothorax tricarinatus head view  Temnothorax tricarinatus side view, worker

Ants of the genus Temnothorax are small, with a head that is elongate relative to their mesosoma, and have an 11 or 12 segmented antenna that ends in a 3 segmented club. The mesosoma has no, or only minor, depressions along its dorsal surface and the propodeum either bears two small tooth-like projections or two true spines.
Temnothorax tricarinatus are small workers with a 12 segmented antenna and well developed propodeal spines. Their clypeus bears a medial and two lateral carinae.
Modified from Mackay (2000): Nests under rocks and in moist soil in open grassy areas. This species has been found in foothill meadows, canyon deciduous forests, oak woodlands, oak-history forests, ponderosa pine forests, shortgrass prairies, sagebrush and pastures, cedar forests, areas with scant vegetation and disturbed sites. Colonies are monogynous.
United States. North Dakota, South Dakota, Idaho, Wyoming, Utah, Nevada, Arizona, Colorado, New Mexico, Nebraska and Iowa.
Navajo Reservation Records
Collection records being processed.
Morphological. The clypeus has a well developed medial and two lateral carinae. L. tri = three + L. carinatus = keeled.

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Original Combination - Leptothorax tricarinatus - Emery 1895.
the original species description for Temnothorax tricarinatus (first page) Temnothorax tricarinatus description, page two

M.R. Smith (1952) described the male:

tricarinatus text page three page four

Holotype worker, MCSN. Reported in Mackay (2000).
Type Locality
Hill City, South Dakota

Emery, C. 1895. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Tiere. 8:257-360.
MacKay, W. P. 2000. A review of the New World ants of the subgenus Myrafant, (Genus Leptothorax) (Hymenoptera: Formicidae). Sociobiology. 36:265-444.
Smith, M. R. 1952. North American Leptothorax of the tricarinatus-texanus complex (Hymenoptera: Formicidae). Journal of the New York Entomological Society. 60:96-106.

A note about these publications. The literature cited here is not meant to be an exhaustive list of papers published about this species.

Page authored by David Lubertazzi and Gary Alpert

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