Technomyrmex bicolor
Technomyrmex bicolor | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Dolichoderinae |
Genus: | Technomyrmex |
Species: | T. bicolor |
Binomial name | |
Technomyrmex bicolor Emery, 1893 |
Nothing is known about the biology of Technomyrmex bicolor.
Identification
Bolton (2007) - A member of the Technomyrmex bicolor group. The colour pattern of bicolor, with head and gaster uniformly very dark brown and the mesosoma, petiole and all the appendages a strongly contrasting yellow, is unique in the genus. Some species in the bicolor group have the head and mesosoma lighter than the gaster but no other has the above arrangement.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 29.383333° to 6.4°.
North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Oriental Region: India, Sri Lanka (type locality).
Palaearctic Region: China.
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. |
Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- bicolor. Technomyrmex bicolor Emery, 1893f: 249 (w.) SRI LANKA. See also: Bolton, 2007a: 72.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Bolton (2007) - TL 2.9, HL 0.62, HW 0.55, SL 0.70, PW 0.40, WL 0.82. Indices: CI 89, SI 127, OI 27, EPI 62, DTI 135.
Dorsum of head behind clypeus entirely lacks setae. Anterior clypeal margin with a semicircular median notch which is conspicuous and has sharply defined margins; inner margin of notch rounds into lateral portion of anterior c1ypeal margin. Posterior margin of head shallowly indented medially in full-face view and outer margins of eyes just fail to break the outline of the sides. Dorsum of mesosoma and declivity of propodeum without setae. Metathoracic spiracles very close to metanotal groove. In profile the length of the propodeal dorsum is slightly greater than the depth of the declivity to the spiracle. First gastral tergite without setae; second gastral tergite with 1 pair of setae (the sclerite is abraded, it is possible that 2 pairs were originally present); third gastral tergite with 2 - 3 pairs; tergite 4 is embedded in glue but 2 - 3 pairs of setae should probably be present. Strikingly bicoloured species: head capsule and gaster very dark brown, almost black; mandibles, antennae, mesosoma, petiole and all leg segments the same shade of clear yellow.
Type Material
Bolton (2007) - Syntype worker, Sri Lanka: Kandy (E. Simon) (Museo Civico di Storia Naturale, Genoa) [examined].
- Syntype, uncertain, Sri Lanka, museum unknown (prob. MCSN (Genoa)).
References
- Bolton, B. 2007b. Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste. Contributions of the American Entomological Institute. 35(1):1-149.
- Dias, R.K.S., Kosgamage, K.R.K.A. 2013. Occurrence and species diversity of ground-dwelling worker ants (Family: Formicidae) in selected lands in the dry zone of Sri Lanka. Journal of Science of the University of Kelaniya Sri Lanka 7: 55-72 (doi:10.4038/josuk.v7i0.6233).
- Dias, R.K.S., Rajapaksa, R.P.K.C. 2017. Geographic records of subfamilies, genera and species of ants (Hymenoptera: Formicidae) in the four climatic zones of Sri Lanka: A review. Journal of Science of the University of Kelaniya Sri Lanka 11, 23-45. (doi:10.4038/josuk.v11i2.7999).
- Emery, C. 1893h. Voyage de M. E. Simon à l'île de Ceylan (janvier-février 1892). Formicides. Ann. Soc. Entomol. Fr. 62: 239-258 (page 249, worker described)
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References based on Global Ant Biodiversity Informatics
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