Dorymyrmex hypocritus

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

Nothing is known about the biology of Dorymyrmex hypocritus.

Identification

Snelling (1975) - Worker: Bicolored species with wholly ferruginous thorax; uppermost setae of psammophore below occipital foramen; occipital sculpture not sharply differentiated from that of frons; mesonotum, in profile, straight over posterior one-half; terga pubescent at sides.

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -34.4° to -34.4°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Neotropical Region: Chile (type locality).

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• hypocritus. Araucomyrmex hypocritus Snelling, R.R. 1975: 12, figs. 16, 17 (w.) 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 1.03-1.08 (1.08); HW 0.83-0.92 (0.92); SL 1.17-1.23 (1.23); PW 0.57-0.62 (0.60); WL 1.43-1.57 (1.57).

Head. Conspicuously longer than broad, CI 81-85 (85); in frontal view, widest at eye level, slightly sinuate below eye level; occipital margin nearly flat in frontal view. Scape distinctly longer than head, extending beyond occipital margin by about 0.45 x its length; SI 134-140 (135). Eye large, OMD 1.06-1.25 (1.25) x EL. Apical margin of clypeus, in frontal view, nearly straight, with barely indicated median sinuosity.

Thorax. Slender, PW 0.38-0.41 (0.38) x WL. Mesonotum, in profile, nearly straight, not angulate beyond middle. Propodeum, in profile, not depressed in front of tubercle; tubercle high, acute.

Vestiture. Appressed pubescence short, sparse on fronsg denser on occiput; longer and denser on thorax; long and dense on gastric terga, including sides of first two segments; very scattered around antennal sockets and on sides of head; completely appressed on scape.

Clypeus with long setae on apical margin and a few on basal margin, disc with a few very short setae; frontal lobes with a seta pair near clypeal base and another at level of lower eye margin, the latter notably long; vertex with a single pair of short setae (apparently broken off in some specimens). Basalmost setae of psammophore below level of occipital foramen. Pronotum with a median seta pair and a preapical, much shorter pair; mesonotum and propodeum without erect setae. First tergum with a few scattered setae on posterior half of dorsal face; remaining terga with preapical seta row and a few, inconspicuous discal setae. Scape without setae except at apex. Fore femur with three or four setae on basal half of ventral margin; mid and hind femora without setae on dorsal margin; tibiae without setae.

Integument. Clypeus smooth and shiny along midline, closely shagreened and moderately shiny elsewhere; frontal lobes and frons slightly shiny, closely shagreened and micropunctate; vertex and occiput a little duller and more densely micropunctate, out blending into frons; malar area and gena shiny, lightly shagreened. Thorax similar to occiput, closely shagreened and moderately shiny, sides shinier. Gaster dull, very closely shagreened and with dull micropunctures.

Color. Head, including scape, and thorax bright ferruginous; gaster blackish; flagellum and legs dark brown.

Type Material

Holotype and four paratype workers: Chile, Prov. Santiago: Fun do Santa Laura, near Cuesta Ia Dormida, 20 Oct. 1971 (J. H. Hunt, #453), all in Los Angeles County Museum of Natural History.

Etymology

The Latin, hypocritus, mime or dissembler, because of the similarity to such species as goetschi and tener.

References

• Shattuck, S. O. 1992c. Generic revision of the ant subfamily Dolichoderinae (Hymenoptera: Formicidae). Sociobiology 21: 1-181 (page 85, Combination in Dorymyrmex)
• Snelling, R. R. 1975. Descriptions of new Chilean ant taxa (Hymenoptera: Formicidae). Contributions in Science, LACM. 274:1-19. (page 12, figs. 16, 17 worker described)

References based on Global Ant Biodiversity Informatics

• Ipinza-Regla J., L. Castro, R. Eissemann, and M. A. Morales. 2010. Factors Influencing the Distribution of Nests of the Argentine Ant Linepithema humile Mayr (Hymenoptera: Formicidae), in a Foothills Ecosystem of the Central Zone of Chile. Neotropical Entomology 39(5):686-690.
• Shattuck S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112: i-xix, 1-241.
• Snelling R. R. 1975. Descriptions of new Chilean ant taxa (Hymenoptera: Formicidae). Contributions in Science (Los Angeles) 274: 1-19
• Snelling R. R., and J. H. Hunt. 1975. The ants of Chile (Hymenoptera: Formicidae) Revista Chilena de Entomología 9: 63-129.