Pogonomyrmex anergismus

Distribution
This taxon was described from the United States.

Nomenclature

 *  anergismus. Pogonomyrmex (Pogonomyrmex) anergismus Cole, 1954b: 115 (q.m.) U.S.A. See also: Cole, 1968: 46; Johnson, R.A. 1995: 257.

Queen
Cole (1968) - HL 1.52-1.56 mm, HW 1.67-1.71 mm, CI 109.6-109.9, SL 1.18-1.22 mm, SI 70.7-71.3, EL 0.38-0.38 mm, EW 0.27-0.27 mm, OI 24.4-25.0, WL 2.20-2.28 mm, PNL 0.38-0.38 mm, PNW 0.38-0.38 mm, PPL 0.46-0.46 mm, PPW 0.72-0.72 mm.

Mandible with 6 teeth arranged along a strongly oblique masticatory margin; subapical tooth about one-half length or apical, tightly appressed to it; first and second basals subequal in length, well separated from each other; penultimate basal tooth a little shorter than first and second basals, subequal in length to the broader ultimate basal which makes a straight angle with the basal mandibular margin; all teeth except ultimate basal moderately sharp.

Basal enlargement of antennal scape well flared, declivity or superior lobe meeting the shart at a broadly rounded angle; basal flange thin, extending to apex of superior lobe; lip weak, only slightly curved distad; point weak; longitudinal peripheral carina distinct.

Entire head with fine longitudinal rugulae which tend to fade out on occipital corners, the rugulae somewhat coarser just above mandibular articulations and on postgenae; interrugular spaces very faintly and finely punctulate; occipital corners with a few, shallow, elongate foveae.

Contours, in lateral view, of thorax, petiole, and postpetiole as portrayed in Pl. IX, Fig. 3; epinotal spines short, stubby, broad at the base, rather blunt; petiolar node in the shape of a weakly truncated cone, length of an terior and posterior declivities subequal, dorsum flattened; ventral process of petiolar peduncle weak to strong and subtriangular; ventral process of postpetiole weak. Conformation of petiole and postpetiole, viewed from above, as shown in Pl. XII, Fig. 14; petiolar node rather square, lateral margins subparallel, midregion with a distinct, broad, shallow impression, apex and apical corners truncate; postpetiole subglobular.

Pronotum with moderately fine transverse fugae; scutum finely, longitudinally rugulose; scutellum smooth, highly polished; sides of thorax with fine, longitudinal rugae; base of epinotum with coarser, subparallel, transverse rugae; declivious surface of epinotum smooth. Lateral and posterior surfaces of petiolar node with a few, fine, transverse rugulae or striae. Dorsum of postpetiole with a few, fine, irregular, transverse rugulae or striae. Interrugal spaces of thorax, petiole, and postpetiole free of sculpture. Gaster smooth without shagreening. Entire body shining.

Body with rather abundant, moderately long, mostly stiff and coarse, golden hairs; those on clypeus long and pointed as are also those comprising the well-developed psammophore; most of those elsewhere on head blunt, shortest on frontal region, longest on vertex and occipital border where they are largely clavate; sparse around compound eyes and in area between median ocellus and clypeus; long, fine, reclinate, and subappressed on antennal scapes, suberect on pedicel and first four flagellar segments, mostly subappressed and appressed on remaining segments. Hairs on thorax of variable length; longer and more pointed on pronotum; shorter and more clavate on scutum and scutellum; very short, blunt, and clavate on sides of thorax; long, slender, and pointed on fore coxae; very sparse and short on epinotum and on ventral process of petiolar peduncle; short and blunt on petiolar node; long and blunt on postpetiole. Hairs on gastric dorsum rather long, blunt, and evenly distributed.

Body color a rather uniform light ferrugineous red.

Additional References

 * [[Media:Cole 1954a.pdf|Cole, A. C., Jr. 1954b. Studies of New Mexico ants. VII. The genus Pogonomyrmex with synonymy and a description of a new species (Hymenoptera: Formicidae). J. Tenn. Acad. Sci. 29: 115-121 PDF]]


 * [[Media:Johnson 1995.pdf|Johnson, R.A. 1995. Distribution and natural history of the workerless inquiline ant Pogonomyrmex anergismus Cole. Psyche 101 (1994): 257-262. [1995.] PDF]]