Pheidole obscurifrons

Nothing is known about the biology of obscurifrons.

Identification
See the description in the nomenclature section.

Distribution
Recorded from Santa Fé and Córdoba, Argentina (Kempf 1972b).

This taxon was described from Argentina.

Nomenclature

 *  obscurifrons. Pheidole (Elasmopheidole) aberrans var. obscurifrons Santschi, 1925e: 158 (s.w.) ARGENTINA. Raised to species: Wilson, 2003: 139.

Description
From Wilson (2003): Major: large; yellow; frontal lobes in side view form blunt right angles; in full-face view the mesad anterior border is straight and the lateral anterior border concave, the two coming together as a blunt angle that approaches within an Eye Length of the anterior clypeal border; all of the dorsal surface of the head carinulate except the centers of the clypeus and occiput; upper section of mesopleuron carinulate and foveolate; low, forward-directed process present on postpetiolar venter.

Minor: all of dorsum and sides of head except vertex and frontal triangle carinulate; pronotal dorsum covered by semicircular carinulae; mesopleuron foveolate.

MEASUREMENTS (mm) Lectotype major: HW 1.70, HL 2.00, SL 0.62, EL 0.16, PW 0.90. Paralectotype minor: HW 0.76, HL 0.82, SL 0.62, EL 0.10, PW 0.50.

COLOR Major: concolorous reddish brown.

Minor: concolorous plain yellow.



'''Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.'''

Type Material
- as reported in Wilson (2003)

Type Locality Information
ARGENTINA: Fives Lille, Santa Fé. (Wilson 2003)

Etymology
L obscurifrons, dark or indistinct brown, allusion unknown. (Wilson 2003)

Additional References
Kempf, W. W. 1972d. A study of some Neotropical ants of genus Pheidole Westwood. I. (Hymenoptera: Formicidae). Stud. Entomol. 15: 449–464.

Santschi, F. 1925e. Fourmis des provinces argentines de Santa Fe, Catamarca, Santa Cruz, Córdoba et Los Andes. Comun. Mus. Nac. Hist. Nat. “Bernardino Rivadavia” 2: 149–168.

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