Strumigenys ruta

AntWiki: The Ants --- Online
Strumigenys ruta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. ruta
Binomial name
Strumigenys ruta
Bolton, 2000

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Specimen Labels

Nothing is known about the biology of Strumigenys ruta.

Identification

Bolton (2000) - A member of the Strumigenys silvestrii-group. Isolated from the same litter sample as the holotype of Strumigenys dyseides, the two are closely related but have different forms of gastral pilosity. S. ruta also differs from dyseides by having relatively shorter mandibles, a vestigial lateral spongiform lobe on the petiole, a reticulate-punctate postpetiole disc and a pair of standing hairs on the mesonotum. However, both belong to the same small complex of species, defined and differentiated under dyseides, where ruta appears to be the closest known relative of Strumigenys skia.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 3.355° to 3.355°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia (type locality).

Distribution based on AntMaps

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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.
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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.
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Biology

Template:Strumigenys

Castes

Nomenclature

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

  • ruta. Strumigenys ruta Bolton, 2000: 557 (w.) COLOMBIA.

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

Description

Worker

Holotype. TL 1.5, HL 0.41, HW 0.32, CI 78, ML 0.21, MI 51, SL 0.26, SI 81, PW 0.22, AL 0.40. Spiniform preapical tooth of mandible separated from apicodorsal tooth by a distance at least equal to its own length. A tiny preapical denticle present just proximal of mandibular midlength. Scape with an obtuse but conspicuous subbasal bend; curved hairs on leading edge of scape spatulate, the longest of them about equal to the maximum width of the scape. Ground pilosity of cephalic dorsum narrowly spoon-shaped; close to occipital margin is a pair of slightly more erect straighter hairs but these are quite weakly differentiated from the ground-pilosity. Apicoscrobal hair very long, fine and flagellate. Pronotal humeral hair fine and flagellate; an erect pair of fine flagellate hairs on the mesonotum. Dorsum of first gastral tergite with widely spaced flagellate hairs that are much stouter than those on the head and alitrunk; these hairs do not arise from conspicuous pits. In structure the flagellate hairs of the first tergite appear thick or flattened to ribbon-like in their basal halves; slender and simple only in their apical sections. Similar but shorter, more flattened or ribbon-like, hairs present on dorsa of petiole and postpetiole. Surface of first gastral tergite between the flagellate hairs bare, without fine simple ground pilosity. Propodeum with a pair of small teeth, subtended by narrow lamellae. Petiole in profile without spongiform tissue ventrally and without a lateral spongiform lobe; node with height of anterior face greater than length of dorsal surface (discounting posterior collar). In dorsal view petiole node broader than long. Disc of postpetiole finely superficially reticulate-punctate. Basigastral costulae about as long as postpetiole disc.

Type Material

Holotype worker, Colombia: Putumayo, Villa Garzon, 23.vii.1977 (D. Jackson) (The Natural History Museum).

References

References based on Global Ant Biodiversity Informatics

  • Castano-Meneses G., R. De Jesus Santos, J. R. Mala Dos Santos, J. H. C. Delabie, L. L. Lopes, and C. F. Mariano. 2019. Invertebrates associated to Ponerine ants nests in two cocoa farming systems in the southeast of the state of Bahia, Brazil. Tropical Ecology 60: 52–61.
  • Sosa-Calvo J., T. R. Schultz, and J. S. LaPolla. 2010. A review of the dacetine ants of Guyana (Formicidae: Myrmicinae). Journal of Hymenoptera Research 19: 12-43.