Dorymyrmex pappodes

Nothing is known about the biology of .

Identification
Snelling (1975) - Basal most setae of psammophore above lower margin of occipital foramen; front of head with numerous erect setae of various lengths on upper half; propodeal tubercle high, sharp; thorax wholly dark brown.

Distribution based on Regional Taxon Lists
Neotropical Region: Chile.

Nomenclature

 *  pappodes. Araucomyrmex pappodes Snelling, R.R. 1975: 14, figs. 20, 21 (w.) CHILE. Combination in Dorymyrmex: Shattuck, 1992c: 85.

Worker
HL 0.96-1.09 (1.09); HW 0.82-0.96 (0.96); SL 1.04-1.15 (1.15); PW 0.54-1.00 (1.00); WL 1.41-1.59 (1.59).

Head. Distinctly to a little longer than broad, CI 85-90 (88); in frontal view, widest at eye level, margins not sinuate below eye level; occiput, in frontal view, flat or weakly convex. Scape distinctly longer than head, SI 118-126 (120); extending beyond occiput by about 0.3 x its length. Eye large, 0 MD 1.10-1.20 (1.14) x EL. Apical margin of clypeus, in frontal view, weakly subangulate in middle.

Thorax. Slender, PW 0.37-0.40 (0.38) x WL. Mesonotum, in profile, weakly angulate beyond middle. Propodeum, in profile, weakly sinuate in front of tubercle; tubercle stout, high, summit rounded, but profile acute.

Vestiture. Appressed pubescence sparse on clypeus, malar area and gena; longer, dense, and partially obscuring surface, on frontal lobes, frons, vertex and occiput, some hairs subdecumbent. Thoracic pubescence less dense than that of occiput, mostly appressed, but some decumbent to suberect, especially on dorsum. Gastric pubescence dense, but not obscuring surface, mostly appressed, but some hairs subdecumbent.

Cephalic setae abundant; apical margin of clypeus with very long setae, basal margins and disc with much shorter setae; frontal lobes with apical seta pair and another at level of lower eye margin. Frons, vertex, occiput and margins of head with numerous short, fine setae generally distributed. Basalmost setae of psammophore arising well above lower margin of occipital foramen. Pronotum with a median pair of long (subequal to MOD), slender setae and a pair of much shorter setae near posterior margin; disc with numerous fine, much shorter, setae. Mesonotum with sparse, very short, fine setae. Discs of gastric terga with generally distributed, short, fine setae and preapical row of longer setae. Scape with abundant, fine, suberect to erect, very short setae. Fore femur with short, fine, suberect to erect setae along entire ventral margin. Femora and tibiae otherwise with generally distributed very short, fine, decumbent to erect setae.

Integument. Clypeus shiny, midline smooth and polished, remainder lightly shagreened; malar area and gena moderately shiny, lightly shagreened, with scattered micropunctures and a few coarser punctures; frontal lobes, frons, vertex and occiput slightly shiny, sharply shagreened and densely micropunctate. Thorax shinier than frons, less closely shagreened, about as densely micropunctate. Gastric terga about as shiny as frons and similarly sculptured.

Color. Head brownish ferruginous on occiput, becoming progressively paler toward mandible. Pronotal neck obscurely ferruginous, thorax otherwise very dark reddish brown. Gaster blackish brown. Appendages medium brown.

Type Material
Holotype and 37 paratype workers: Chile, Prov. Valparaiso: Maitencillo, 30m elev., 10 Oct. 1971 (J. H. Hunt, #424). Holotype and most paratypes in ; three paratypes each in and.

Etymology
Gr., pappodes, downy, in allusion to the abundance of fine pubescence rendering to this ant its distinctive appearance.