Pheidole ambigua, Wilson, E. O., 2003

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 652

publication ID

20017

DOI

https://doi.org/10.5281/zenodo.6275346

persistent identifier

https://treatment.plazi.org/id/14788500-7423-82B7-AE79-7F892D6ED08C

treatment provided by

Donat

scientific name

Pheidole ambigua
status

new species

Pheidole ambigua   HNS new species

Types Mus. Comp. Zool. Harvard.

etymology L ambigua   HNS , uncertain, doubtful.

diagnosis A medium-sized member of the tristis   HNS group, similar to amata   HNS , celaena   HNS , fera   HNS , germaini   HNS , peruviana   HNS , rutilana   HNS , schwarzmaieri   HNS , vomer   HNS , and possibly the same as bruchi   HNS of Argentina, on the basis of resemblance of the minor (major syntypes of bruchi   HNS could not be located in the Forel collection at the time of study). The paratype minor of ambigua   HNS differs from a syntype minor of bruchi   HNS in its more abundant pilosity, lighter color, and foveolate promesonotal dorsum. Otherwise, ambigua   HNS is distinguished within the tristis   HNS group by the following combination of traits.

Major: anterior two-thirds of dorsum of head carinulate, remainder smooth and shiny; carinulae on rest of body limited to anterior strip of pronotal dorsum; humerus in dorsal-oblique view moderately prominent and lobose; postpetiole from above diamond-shaped. Minor: pilosity sparse; propodeal spines reduced to denticles; promesonotal profile in dorsal-oblique view smoothly convex; occiput narrowed, with a nuchal collar.

Measurements (mm) Holotype major: HW 1.54, HL 1.74, SL 0.78, EL 0.18, PW 0.72.

Paratype minor: HW 0.56, HL 0.62, SL 0.74, EL 0.40, PW 0.36.

color Major: light reddish yellow.

Minor: body light yellowish brown, appendages yellow.

range Known only from the type locality.

Biology Unknown.

figure Upper: holotype, major. Lower: paratype, minor. BRAZIL: Caraguatatuba Reserva Florestal, Sao Paulo (William L. and Doris E. Brown). Scale bars = 1 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Pheidole

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