Dolichoderus plagiatus

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Dolichoderus plagiatus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Tribe: Dolichoderini
Genus: Dolichoderus
Species: D. plagiatus
Binomial name
Dolichoderus plagiatus
(Mayr, 1870)

Dolichoderus plagiatus casent0104779 profile 1.jpg

Dolichoderus plagiatus casent0104779 dorsal 1.jpg

Specimen Label

Synonyms

These ants form relatively small soil-based nests. While foraging workers are often seen on low vegetation, their nests are cryptic and can be challenging to locate.

Photo Gallery

  • Foraging worker on low vegetation. Photo by Tom Murray.
  • Worker. Photo by Tom Murray.
  • Dealate queen. Photo by Tom Murray.

Identification

Identification Keys including this Taxon

Distribution

New Brunswick, Canada westward through Ontario, Manitoba, and North Dakota. Southward in the eastern U.S., the species reaches North and South Carolina and Georgia (Smith, 1979).

Distribution based on Regional Taxon Lists

Nearctic Region: Canada, United States (type locality).
Neotropical Region: Mexico.


Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Habitat

The Southern records show a preference for upland habitats and the species has not been documented in the southern Coastal Plain.

Biology

Life History Traits

  • Queen number: monogynous (Rissing and Pollock, 1988; Frumhoff & Ward, 1992)

Castes

Queen

Nomenclature

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

  • plagiatus. Hypoclinea plagiata Mayr, 1870b: 960 (w.) U.S.A. Wheeler, W.M. 1905d: 311 (q.m.); Wheeler, G.C. & Wheeler, J. 1951: 175 (l.). Combination in Dolichoderus: Mayr, 1886d: 436; in D. (Hypoclinea): Emery, 1894c: 229. Senior synonym of borealis: Emery, 1895c: 330; of inornatus: Creighton, 1950a: 335. See also: Wheeler, G.C. & Wheeler, J. 1966: 727; Smith, D.R. 1979: 1416; Johnson, C. 1989a: 3; Mackay, 1993b: 81; Shattuck, 1994: 61.
  • borealis. Dolichoderus borealis Provancher, 1888: 408 (w.) CANADA. Junior synonym of plagiatus: Emery, 1895c: 330.
  • inornatus. Dolichoderus plagiatus var. inornatus Wheeler, W.M. 1905d: 313 (w.) U.S.A. Junior synonym of plagiatus: Creighton, 1950a: 335.

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

Description

Worker

Johnson (1989) - This ant has a mottled color pattern compared to the other species. The mandibles and head are dark brown to near-black, paler in callow specimens. The antennae, alitrunk; legs and petiole are brown-orange; dorsum of the alitrunk becoming dark brown in older specimens. There are laterally-spaced spots of pale brownish-orange on the first and second segments of gaster; the remainder of gaster is dark brown.

Structurally, head and complete dorsum of alitrunk are sculptured with well-defined depressions or foveolae. The pronotum is sculptured as strongly as the mesonotum, a definitive feature for this species. Granulation of the alitrunk occurs within the depressions and the surface is essentially opaque; the reflectivity of cuticle broken into small, disjunct regions. A fine granulation occurs on the petiole, and the integument of the gaster is smooth and shining. Erect hairs are numerous on head and alitrunk; a few scattered erect hairs occur on gaster, and there are short, fine erect hairs on scapes. In dorsal view, length of propodeum exceeds its width. Integument within concavity of the declivous face of propodeum is smooth and highly reflective.

Type Material

Type locality - Illinois.

Worker Morphology

  • Caste: monomorphic

References

References based on Global Ant Biodiversity Informatics

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