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Strumigenys rectidens
| Strumigenys rectidens | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. rectidens |
| Binomial name | |
| Strumigenys rectidens Brown, 1966 | |
Nothing is known about the biology of Strumigenys rectidens.
Identification
Bolton (2000) - A member of the ebbae complex in the Strumigenys koningsbergeri-group. At first glance this species would seem to be related to Strumigenys ebbae and its closest relatives, but striking differences in form of pilosity and its arrangement immediately isolate rectidens.
The presence of flagellate humeral hairs in rectidens is unique in the group and leads to the suspicion that the species is not correctly placed here. It may be independently derived from forms such as Strumigenys baal and Strumigenys edaragona of the rofocala-complex (godeffroyi-group), but if so it has undergone radical modifications to the mandibles and preapical teeth. Until more material than the holotype of rectidens is known, little can be done to ensure its correct placement.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia (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. |
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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. |
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Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- rectidens. Strumigenys rectidens Brown, 1966: 23, fig. 1 (w.) INDONESIA (Sumba I.). See also: Bolton, 2000: 851.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Bolton (2000) - TL 2.1, HL 0.63, HW 0.48, CI 76, ML 0.27, MI 43, SL 0.32, SI 67, PW 0.29, AL 0.59. With characters of ebbae-complex. Preapical tooth conical and very slightly recurved, widely separated from apicodorsal tooth; length of preapical tooth less than width of mandible at point where it arises. Inner margin of mandible straight to extremely weakly convex proximal of preapical tooth, not sinuate and without a lamella. Outer margin of mandible shallowly convex from base to level of preapical tooth. Ventrolateral margin of head without trace of a preocular concavity. Upper scrobe margins evenly divergent posteriorly, almost straight; outer arc of eye visible in full-face view. Hairs that fringe upper scrobe margin uniformly small, without an apicoscrobal hair. Dorsum of head in profile with 4 narrowly remiform curved erect hairs along occipital margin, without standing hairs anterior to this. Pronotal humeral hair slender and flagellate; pronotal dorsum otherwise without standing hairs. Mesonotum with a single pair of erect narrowly remiform hairs. Anterior half of katepisternum smooth, remainder of side of alitrunk reticulate-punctate. Lamella on propodeal declivity narrow, with posterior (free) margin convex. Disc of postpetiole reticulate-punctate. Standing hairs on first gastral tergite narrowly remiform, sparse, restricted to a basal and an apical transverse row.
Type Material
Bolton (2000) - Holotype worker, INDONESIA: Soemba I., Mao Marroe, 450 m., v.1925 (K. Dammerman) (Museum of Comparative Zoology) [examined].
References
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 851, redescription of worker)
- Brown, W. L., Jr. 1966b. Strumigenys rectidens species nov. Pilot Regist. Zool. Card No. 23. (page 23, fig. 1 worker described)
References based on Global Ant Biodiversity Informatics
- Brown W. L. Jr. 1966. Strumigenys rectidens species nov. Pilot Register of Zoology Card No. 23: 1-2.