Dolichoderus scrobiculatus
Dolichoderus scrobiculatus | |
---|---|
Dolichoderus scrobiculatus | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Dolichoderinae |
Tribe: | Dolichoderini |
Genus: | Dolichoderus |
Species group: | scrobiculatus |
Species: | D. scrobiculatus |
Binomial name | |
Dolichoderus scrobiculatus (Mayr, 1876) |
Dolichoderus scrobiculatus is the only species of the genus common in the Australian wet tropics, being found from Cape York Peninsula south to north-eastern New South Wales. It occurs in savannah woodlands to rainforests and nests in tussocks and under rocks. Workers commonly forage on low vegetation.
Identification
Pronotum and propodeum lacking spines; posterior face of propodeum strongly concave, separated from the dorsal face by a distinct carina; sculpturing on head consisting of large, shallow to moderately deep fovea; pubescence on first gastral tergite abundant, the individual hairs overlapping; dorsum of pronotum heavily sculptured, the surface dull; gaster similar in colour to body (both dark brown to black).
This species resembles Dolichoderus clusor and Dolichoderus turneri. It can be distinguished from D. clusor by the presence of heavy sculpturing on the pronotum and from D. turneri by the similarly coloured gaster and body (both being dark brown to black in D. scrobiculatus while in D. turneri the gaster is lighter in colour than the body).
Identification Keys including this Taxon
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -12.7° to -35.33333333°.
North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Australasian Region: Australia (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. |
The two southern outlier records, from southern New South Wales and Victoria, were made many years ago and now collections have been made since. The status of this species in these areas seems doubtful.
Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- scrobiculatus. Hypoclinea scrobiculata Mayr, 1876: 80 (w.) AUSTRALIA. Combination in Dolichoderus: Dalla Torre, 1893: 161; in D. (Hypoclinea): Emery, 1894c: 228. See also: Clark, 1930b: 260.
Type Material
- Hypoclinea scrobiculata Mayr, 1876: Syntype, 3 workers, Peak Downs, Queensland, Australia, 22°56′0″S 148°5′0″E / 22.933333°S 148.083333°E, Musee d'Histoire Naturelle Genève.
- Hypoclinea scrobiculata Mayr, 1876: Syntype, 4 workers, Peak Downs, Queensland, Australia, 22°56′0″S 148°5′0″E / 22.933333°S 148.083333°E, Naturhistorisches Museum Wien, Vienna.
Description
Worker
Clark (1930) - Black, the thorax sometimes brownish black, mandibles and scapes red, funiculus and legs darker.
Shining. Head, thorax and node coarsely punctate. Clypeus more striate-rugose. Mandibles smooth, with some large shallow punctures. Gaster microscopically punctate.
Hair yellow, erect, long and abundant throughout, shorter on the antennae and legs. Pubescence apparent only on the gaster, where it forms a thin yellowish covering, not hiding the sculpture.
Head longer than broad, the occipital border feebly, and the sides strongly, convex. Frontal carinae dilated at the middle, as long as their distance apart. Clypeus convex above, the anterior border convex, with a deep and wide excision in the middle. Eyes globular, placed slightly behind the middle of the sides. Scapes extending beyond the occipital border by one-fourth of their length; first segment of the funiculus one third longer than the second and third. The masticatory border of the mandibles finely denticulate, the terminal border with ten or twelve sharp teeth. Thorax one and a half times longer than broad. Pronotum almost three times broader than long, feebly convex above. Mesonotum convex above. Epinotum as long as broad, the sides and posterior border feebly convex; in profile the dorsum strongly convex longitudinally, much higher in front than behind, overhanging the declivity, the latter slightly longer than the dorsum and strongly concave. Node barely twice as broad as long, the anterior face feebly, the posterior face strongly, convex; in profile parallel to near the top, where both faces are convex, meeting and forming a ridge on the dorsum. Gaster concave in front below. Legs robust.
Shattuck and Marsden (2013) - All known specimens closely resemble each other.
Measurements (n=5). CI 94–96; EI 26–28; EL 0.26–0.29; HL 1.04–1.12; HW 0.98–1.07; ML 1.39–1.51; MTL 0.79–0.85; PronI 74.95–80.10; PronW 0.76–0.84; SI 96–100; SL 0.94–1.03.
References
- Clark, J. 1930b. The Australian ants of the genus Dolichoderus (Formicidae). Sugenus Hypoclinea Mayr. Aust. Zool. 6: 252-268 (page 260, see also)
- Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 161, Combination in Dolichoderus)
- Emery, C. 1894d. Studi sulle formiche della fauna neotropica. VI-XVI. Bull. Soc. Entomol. Ital. 26: 137-241 (page 228, Combination in D. (Hypoclinea))
- Heterick, B.E. 2021. A guide to the ants of Western Australia. Part I: Systematics. Records of the Western Australian Museum, Supplement 86, 1-245 (doi:10.18195/issn.0313-122x.86.2021.001-245).
- Heterick, B.E. 2022. A guide to the ants of Western Australia. Part II: Distribution and biology. Records of the Western Australian Museum, supplement 86: 247-510 (doi:10.18195/issn.0313-122x.86.2022.247-510).
- Mayr, G. 1876. Die australischen Formiciden. J. Mus. Godeffroy 12: 56-115 (page 80, worker described)
- Shattuck, S.O. & Marsden, S. 2013. Australian species of the ant genus Dolichoderus (Hymenoptera: Formicidae). Zootaxa 3716, 101–143 (doi 10.11646/zootaxa.3716.2.1).
References based on Global Ant Biodiversity Informatics
- Clark J. 1930. The Australian ants of the genus Dolichoderus (Formicidae). Sugenus Hypoclinea Mayr. Australian Zoologist 6: 252-268.
- Forel A. 1915. Results of Dr. E. Mjöbergs Swedish Scientific Expeditions to Australia 1910-13. 2. Ameisen. Ark. Zool. 9(16): 1-119
- Osunkoya O. O., C. Polo, and A. N. Andersen. 2011. Invasion impacts on biodiversity: response of ant communities to infestation by cat's claw creeper vine, Macfadyena unguis-cati (Bignoniaceae) in subtropical Australia. Biol. Invasions 13: 2289-2302.
- Schnell M. R., A. J. Pik, and J. M. Dangerfield. 2003. Ant community succession within eucalypt plantations on used pasture and implications for taxonomic sufficiency in biomonitoring. Austral Ecology 28: 553565.
- Shattuck S. O., and S. Marsden. 2013. Australian species of the ant genus Dolichoderus (Hymenoptera: Formicidae). Zootaxa 3716(2): 101-143.
- Vanderwoude C., A. N. Andersen, and A. P. N. House. 1997. Community organisation, biogeography and seasonality of ants in a open forest of south-eastern Queensland. Australian Journal of Zoology 45: 523-537.