Strumigenys pliocera

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Strumigenys pliocera
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. pliocera
Binomial name
Strumigenys pliocera
Bolton, 2000

Strumigenys pliocera casent0102560 profile 1.jpg

Strumigenys pliocera casent0102560 dorsal 1.jpg

Specimen labels

Nothing is known about the biology of Strumigenys pliocera.

Identification

Bolton (2000) - A member of the caniophanes complex in the Strumigenys caniophanes-group. See notes under Strumigenys dipsas.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo (type locality), Indonesia, Malaysia.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Strumigenys were once thought to be rare. The development and increased use of litter sampling methods has led to the discovery of a tremendous diversity of species. Many species are specialized predators (e.g. see Strumigenys membranifera and Strumigenys louisianae). Collembola (springtails) and other tiny soil arthropods are typically favored prey. Species with long linear mandibles employ trap-jaws to sieze their stalked prey (see Dacetine trap-jaws). Larvae feed directly on insect prey brought to them by workers. Trophallaxis is rarely practiced. Most species live in the soil, leaf litter, decaying wood or opportunistically move into inhabitable cavities on or under the soil. Colonies are small, typically less than 100 individuals but in some species many hundreds. Moist warm habitats and micro-habitats are preferred. A few better known tramp and otherwise widely ranging species tolerate drier conditions. Foraging is often in the leaf litter and humus. Workers of many species rarely venture above ground or into exposed, open areas. Individuals are typically small, slow moving and cryptic in coloration. When disturbed individuals freeze and remain motionless. Males are not known for a large majority of species.

Castes

Nomenclature

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

  • pliocera. Strumigenys pliocera Bolton, 2000: 764 (w.) BORNEO.

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 3.4, HL 0.89, HW 0.61, CI 69, ML 0.44, MI 49, SL 0.51, SI 84, PW 0.36, AL 0.90. Mandible with a triangular preapical tooth. Dorsolateral margin of head in full-face view with 3 freely laterally projecting fine hairs: one at level of eye, one just posterior to level of eye and one in apicoscrobal position. Cephalic dorsum with a row of 4-6 erect fine hairs along the occipital margin and with 1-2 shorter erect hairs on lateral margin of occipital lobe; without erect hairs at highest point of vertex. Dorsum of head predominantly reticulate-punctate, overlaid by very fine irregular rugulae. Apical funicular segment spindle-shaped and constricted basally. Promesonotal dorsum and side of pronotum sharply closely punctate; katepistemum mostly smooth. Metapleuron and side of propodeum punctate but glossy. Anterior coxae with weak transverse rugulae or costulae. Pronotal humeral hair long and fine, curved/sinuate but not flagellate. Pronotal dorsum with 2-3 pairs of erect fine hairs, mesonotum with 3-4 similar pairs. First gastral tergite with long fine curved filiform hairs. Dorsal surface of hind femur without standing hairs; ventral surface with a spaced row of suberect hairs that are directed ventrolaterally. Dorsal (outer) surfaces of hind tibia and basitarsus each with 1-2 long erect freely projecting hairs. Propodeal teeth short, triangular and acute. Petiole in profile claviform.

Type Material

Holotype worker, Malaysia: Sabah, Kinabalu, 26.iv.1987, 1880 m., no. 4a (Burckhardt & Lobl) (Musee d'Histoire Naturelle Genève).

Paratypes. 2 workers with same data as holotype (MHNG, The Natural History Museum).

References

  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 764, worker described)

References based on Global Ant Biodiversity Informatics

  • Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58