Pheidole dwyeri Gregg

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 541

Pheidole dwyeri Gregg

Pheidole dwyeri Gregg 1969b: 97.

Types Natural History Museum of Los Angeles County; Mus. Comp. Zool. Harvard; Amer. Mus. Nat. Hist.

Etymology Named after Richard F. Dwyer, who sponsored the Snelling collecting tour of Las Tres Marias.

diagnosis A very distinctive species in the small group of Pheidole that possess 4-segmented antennal clubs.

Major: very large; head disproportionately large, with Head Width more than 2.5X Pronotal Width; head tapered strongly toward occiput in side view; in full-face view, occiput deeply and subangularly concave; median ocellus present; small patch of rugoreticulum present laterad to each antennal fossa.

Minor: propodeal spine of medium length; occiput in full-face view broad and weakly concave. Measurements (mm) Paratype major: HW 2.56, HL 2.58, SL 1.24, EL 0.24, PW 1.00. Paratype minor: HW 0.66, HL 0.74, SL 0.76, EL 0.12, PW 0.42. color Major and minor: concolorous medium reddish brown.

Range Known only from the type locality.

Biology Unknown.

Figure Upper: paratype, major. Lower: paratype, minor. MEXICO: Isla Maria Cleofas, Las Tres Marias, Nayarit (Roy R. Snelling). Scale bars = 1 mm.