Pheidole tetroides

The types were attracted to a bait at night. (Wilson 2003)

Identification
See the description in the nomenclature section.

Distribution
Only known from the type locality.

This taxon was described from Mexico.

Description
DIAGNOSIS A member of the fallax group resembling Pheidole chiapasana, Pheidole dentata, Pheidole humeridens, Pheidole industa, Pheidole laeviventris, Pheidole madrensis and Pheidole maja in various characters, distinguished as follows.

Major: in full-face view the occipital margin is deep, with a subangular nadir; rugoreticulum of head extends in a swath from eye to antennal fossa; carinulae of dorsal surface of head extend almost to midpoint between level of eyes and level of occiput, and foveolation extends well beyond the midpoint; humerus in dorsal-oblique view angulate, and pronotal profile bilobose; propodeal spines strongly developed; postpetiole from above elliptical, with angulate lateral margins; anterior and posterior margins of pronotal dorsum carinulate.

Minor: closely resembles that of tetra in the crassicornis group (q.v.).

MEASUREMENTS (mm) Holotype major: HW 1.16, HL 1.24, SL 0.76, EL 0.18, PW 0.64. Paratype minor: HW 0.56, HL 0.66, SL 0.76, EL 0.14, PW 0.40.

COLOR Major: light reddish brown except for gaster, which is medium reddish brown.

Minor: concolorous plain medium brown; appendages light brown, changing to yellow on the tarsi.



'''Figure. Holotype, major. [Paratype minors closely resemble minors of tetra (q.v.).] Scale bars = 1 mm.'''

Type Locality Information
MEXICO: 38 km southeast of Tepic, Nayarit, 1220 m (R. J. Hamton).

Etymology
Gr tetroides, similar to Pheidole tetra, four, significance unknown.