Pheidole riveti Santschi

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA, USA: Harvard University Press : 224

Pheidole riveti Santschi

Pheidole riveti Santschi 191 li: 278.

Types Naturhist. Mus. Basel.

Etymology Named after the collector, P. Rivet.

Diagnosis Similar in various ways to the species listed in the heading above, distinguished as follows.

Major: propodeal spine reduced to obtuse angle in side view, right angle in dorsal-oblique view; postpetiolar node in side view suppressed, in dorsal view narrow and bell-shaped; occipital margin smooth; carinulae originating on frontal lobes spread laterally as they approach occipital margin; propodeal dorsum and margins of promesonotal dorsum transversely carinulate.

Minor: head "tiger-striped" with semicircular carinulae, as depicted; propodeal dorsum transversely carinulate; occiput narrow but lacks nuchal collar; postpetiolar node in side view suppressed and entire postpetiole cylindrical.

Measurements (mm) Lectotype major: HW 1.12, HL 1.16, SL (scapes missing), EL 0.14, PW 0.54.

Paralectotype minor: HW 0.62, HL 0.76, SL 0.76, EL 0.14, PW 0.40.

Color Major: concolorous light brown.

Minor: concolorous medium brown.

Range Known only from the type locality.

Biology Unknown.

figure Upper: lectotype, major. Lower: paralectotype, minor. ECUADOR: El Angel, near Tulcan, north-central Ecuador, 3000 m (P. Rivet). Scale bars = 1 mm.