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 Pheidole tetra (q.v.).] Scale bars = 1 mm.'''

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

Etymology
Gr tetroides, similar to Pheidole tetra.

Additional References
Text and images from this publication used by permission of the author.