Strumigenys daspleta

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

Pyramica daspleta casent0102600 profile 1.jpg

Pyramica daspleta casent0102600 dorsal 1.jpg

Specimen labels

Nothing is known about the biology of Strumigenys daspleta.

Identification

Bolton (2000) – A member of the Strumigenys mnemosyne-group. For discussion of this species see under Strumigenys mnemosyne.

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 New General Catalogue, a catalogue of the world's ants.

  • daspleta. Pyramica daspleta Bolton, 2000: 445 (w.) BORNEO. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 118

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 1.6, HL 0.42, HW 0.34, CI 81, ML 0.07, MI 17, SL 0.18, SI 53, PW 0.20, AL 0.41. With the characters of the group and answering the general description of mnemosyne, but differing as follows.

1 Leading edge of scape with 2-3 elongate straight hairs that project anterodorsally.

2 With head in full-face view the dorsolateral margin from the frontal lobe to the occipital corner with 6 or more freely projecting hairs.

3 Posterior margins of occipital lobes with a fenestra-like or blister-like area of translucent cuticle that extends more than half the length of the margin on each side.

4 Standing hairs on cephalic dorsum short and stubbly, abundant, too numerous to count easily.

5 Standing hairs on dorsal alitrunk short and stubbly, abundant, not arranged in distinct pairs.

6 Node of petiole in profile with the dorsal outline broadly rounded.

Type Material

Holotype worker, Malaysia: Sarawak, Gn. Penrissen, 1000 m., 23.v.1994, no. 9a (Burckhardt & Lobl) (Musee d'Histoire Naturelle Genève).

References

  • Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99:1-191.
  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 445, worker described)