Dorymyrmex pogonius

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Dorymyrmex pogonius
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Genus: Dorymyrmex
Species: D. pogonius
Binomial name
Dorymyrmex pogonius
(Snelling, R.R., 1975)

Dorymyrmex pogonius F23.jpg

Nothing is known about the biology of Dorymyrmex pogonius.

Identification

Snelling (1975) - Worker: Basalmost setae of psammophore above lower margin of occipital foramen; vertex without seta pair; setae of pronotal pair less than 0.5 x MOD; head ferruginous. Queen. Unknown. Male. CI 97-100; SI 71-77; interocellar distance equal to ocellocular distance; scape shorter than head.

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Chile (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • pogonius. Araucomyrmex pogonius Snelling, R.R. 1975: 15, figs. 22-28 (w.m.) CHILE. Combination in Dorymyrmex: Shattuck, 1992c: 85.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

HL 0.90-0.97 (0.93); HW 0.80-0.90 (0.87); SL 0.93-1.03 (1.00); PW 0.47-0.55 (0.53); WL 1.20-1.30 (1.27).

Head. Distinctly, to a little, longer than broad, CI 88-95 (92); in frontal view, widest at eye level, margins not sinuate below eye level; occiput, in frontal view, weakly concave in middle. Scape slightly longer than head, SI 114-122 (115); extending beyond occiput by about 0.3 x its length. Eye large, OMD 1.07-1.21 (1.21) x EL. Apical margin of clypeus, in frontal view, straight or very weakly convex in middle.

Thorax. Slender, PW 0.39-0.43 (0.42) x WL. Mesonotum, in profile, slightly convex, often weakly angulate beyond middle. Basal face of propodeum distinctly sinuate in profile; tubercle high, acute.

Vestiture. Appressed. pubescence short, abundant on frontal lobes, frons vertex and occiput; very sparse on gena and malar area; some hairs subappressed or subdecumbent on side, above eye and on vertex. Thoracic pubescence general, mostly appressed, but some on pronotum subappressed to subdecumbent. Gastric terga including sides of segments with abundant appressed, and some subappressed, pubescence.

Cephalic setae sparse, vertex pair absent. Long setae present on apical margin of clypeus; shorter, sparse setae on disc and along basal margin; frontal lobes with seta pair near base of clypeus and another at level of lower eye margin. Basalmost setae of psammophore above level of lower margin of occipital foramen. Pronotal disc with median seta pair, setae less than 0.5 x MOD. Mesonotum and propodeum without setae. First tergum with sparse, short setae on basal half of dorsal face and usual preapical row; remaining terga with scattered, very short, discal setae and preapical row of widely spaced setae. Scape without setae, except near tip. Fore femur with two or three setae on basal half of ventral margin. Mid and hind femora without setae on dorsal margin. Tibiae without setae.

Integument. Midline of clypeus smooth and shiny, remainder shiny and lightly shagreened; gena and malar area moderately shiny, moderately shagreened and with scattered micropunctures; frontal lobes, frons, vertex and occiput slightly shiny, closely shagreened and densely micropunctate. Thorax slightly shiny, closely shagreened and densely micropunctate. Gastric terga slightly shiny, closely shagreened and densely micropunctate.

Color. Head and thorax pale ferruginous, propodeum slightly brownish. Gaster medium to dark brownish. Antennae yellowish brown, scape paler than flagellum; legs medium brown.

Male

HL 0.57 (0.57); HW 0.55-0.57 (0.57); SL 0.40-0.43 (0.40); PW 0.73-0.80 (0.73); WL 1.43-1.50 (1.50).

Head. As long as broad to slightly longer than broad, CI 97-100 (100), broadest at upper margins of eyes; occiput, in frontal view, flat, narrowly rounded onto sides of head. Scape shorter than head length, SI 71-77 (71); apex reaching about to occipital margin. Eye large, OMD 0.25-0.27 (0.25) x EL. Apical margin of clypeus convex in middle. Mandible with cutting margin oblique, with three teeth basad of apical tooth.

Thorax. Stout, PW 0.49-0.55 (0.49) x WL. Scutellum, in profile, strongly bulging, dorsal face flat. Propodeum evenly curved in profile.

Terminalia. Apical margin of subgenital plate broadly convex to slightly concave. Genital capsule broader than long; digitus elongate, straplike, extending to apex of gonocoxite; ventral margin of aedeagus with very coarse teeth and a few fine teeth.

Vestiture. Appressed pubescence very sparse and inconspicuous on head. Pubescence a little more abundant on thorax, but still sparse; longest and most conspicuous on propodeum. Gastric terga with evenly distributed appressed pubescence, nowhere sufficiently dense to obscure surface; sterna similarly pubescent.

Clypeus with a few inconspicuous setae along apical margin and a longer pair on either side of median lobe; frontal lobe with a pair of very short setae a little above level of antenna) sockets. Gastric sterna with a few short erect setae. Femora and tibiae without setae. Forewing without fringe hairs; hind wing with a few hairs on apical margin and a fringe on basal half of posterior margin.

Integument. Clypeus and frontal lobes shiny, lightly shagreened and with scattered micropunctures; frons, vertex and occiput less shiny, lightly shagreened, densely punctate with fine punctures of two sizes. Mesoscutum about as shiny as frons, similarly punctate anteriorly, punctures becoming coarser posteriorly; scutellum shiny between coarse, dense punctures; pleura similar to scutellum. Base of propodeum shiny, lightly shagreened and with scattered, obscure punctures which are finer than those of scutellum; sides less shiny, closely, finely punctate. Gastric terga moderately shiny, lightly shagreened, with sparse micropunctures and scattered coarser punctures.

Color. Medium brown, with anterior half of scutellum lighter; antenna and legs light brown. Wings faintly whitish, veins and stigma yellowish to brownish yellow.

Type Material

Holotype worker, allotype male, 35 worker and 17 male paratypes: Chile, Prov. Nuble: Termas de Chilhin, 20 Sept. 1969 (T. Cekalovic; #4187). Holotype, allotype, 15 worker and 7 male paratypes in Los Angeles County Museum of Natural History; 18 worker and 9 male paratypes in Museo de Zoologia; 2 worker and one male paratypes in Museo de Historia Natural de Santiago.

Etymology

Gr., pogon, -os, beard, hence bearded, pogonius, in allusion to the long psammophore on the ventral surface of the worker head.

References