Known from a small number of litter-samples from rainforest habitats.
- 1 Identification
- 2 Distribution
- 3 Biology
- 4 Castes
- 5 Nomenclature
- 6 References
Keys including this Species
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
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.
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- prosopis. Strumigenys prosopis Bolton, 2000: 875, fig. 464 (w.) WEST MALAYSIA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Holotype. TL 1.7, HL 0.48, HW 0.38, CI 79, ML 0.15, MI 31, SL 0.20, SI 53, PW 0.22, AL 0.46. Characters of prosopis-complex. Dorsolateral margin of head with narrowly spoon-shaped curved hairs on upper scrobe margin to level of apex of scrobe; these hairs similar in shape and size to those on leading edge of scape. Posterior to this are shorter, narrower hairs that are more strongly appressed; there is no apicoscrobal hair. Cephalic dorsum with a single standing hair at apex of each occipital lobe, otherwise standing hairs absent. Pronotal humeral hair absent. Dorsum of promesonotum and waist segments without standing hairs. Propodeal declivity with a broad lamella whose posterior margin is confluent with the propodeal tooth to its apex. First gastral tergite with a single pair of erect stiff hairs, near the base. Cephalic dorsum finely and weakly reticulate-punctate, the entire dorsal alitrunk smooth. Dorsum of petiole node unsculptured.
Paratype. TL 1.7-1.8, HL 0.48-0.49, HW 0.38-0.39, CI 78-81, ML 0.15-0.16, MI 31-33, SL 0.20-0.22, SI 53-56, PW 0.22-0.24, AL 0.45-0.50 (3 measured).
Dimensions of non-paratypic workers. HL 0.50-0.52, HW 0.39-0.44, CI 78-84, ML 0.16-0.17, MI 31-34, SL 0.22-0.23, SI 53-56. In some but not all of these the gaster lacks the basal pair of hairs; these may have been lost by abrasion.
Holotype worker, Malaysia: Negri Sembilan, Pasoh For. Res., iii.-iv.1994, litter sample, no. 130 (Brendell, Jackson & Ficken) (The Natural History Museum). Paratypes. 2 workers with same data as holotype but litter sample, no. 83; 1 worker with same data but litter sample, no. 86; I worker with same data but fog sample, no. 2-8 (BMNH, Museum of Comparative Zoology).
This species was referred to as Strumigenys sp. 1 and sp. A in Bolton, 1998b: 92, 95.
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 875, fig. 464 worker described)