Technomyrmex schoedli

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Technomyrmex schoedli
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Genus: Technomyrmex
Species: T. schoedli
Binomial name
Technomyrmex schoedli
Bolton, 2007

Technomyrmex schoedli casent0103272 profile 1.jpg

Technomyrmex schoedli casent0103272 dorsal 1.jpg

Specimen labels

The type collections were made of workers in litter and on vegetation in rainforest habitats.

Identification

Bolton (2007) - A member of the Technomyrmex camerunensis group. This large, slender and spectacularly elongated arboreal species is one of the most easily recognised in the region solely from its measurements and indices: its head is narrower (CI 70 - 74) and its scapes and mesosoma much longer than in any other species (SI 173 - 189; DTI 232 - 250).

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Gabon (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • schoedli. Technomyrmex schoedli Bolton, 2007a: 34, figs. 19, 28 (w.) GABON.

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 5.0, HL 1.14, HW 0.82, SL 1.42, PW 0.56, WL 1.85. Indices: CI 72, SI 173, OI 29, EPI 73, DTI 232.

Frontal carina with 2 setae: in profile the first at about the level of the anterior margin of the eye, the second at about the level of the midlength of the eye (see paratype notes); never a seta directly above the torulus. Head posterior to this, and entire mesosomal dorsum, without setae. Propodeal declivity with a single pair of setae, located at about the level of the spiracle. Head and mesosoma extremely elongated and narrow, scape very long (see indices); legs long and slender, maximum length of hind femur 1.66 (this length through entire type-series 1.64 - 1.90). Anterior clypeal margin with a conspicuous broad roughly semicircular median emargination that is sharply incised. With head in full-face view the outer margins of the eyes distinctly fail to break the outline of the sides. Sides of head behind eyes shallowly convex and conspicuously convergent posteriorly, so that head width across posterior margin is markedly less than the width immediately behind the eyes. In profile and in dorsal view the mesonotum is very slender, constricted in front of the metathoracic spiracles; the latter far anterior to the metanotal groove; in dorsal view the minimum width of the mesonotum is only about 0.45 x PW. Propodeum elongate, in profile the dorsum rounds broadly into the declivity and the straight-line dorsal length is distinctly greater than the depth of the declivity to the spiracle. First gastral tergite with a pair of stiff setae (see paratype notes); gastral tergites 2 - 4 each with 1 - 2 pairs of long setae. Head, mesosoma, petiole, gaster and legs all light brownish yellow to light brown.

Paratypes. TL 4.5 - 5.1, HL 1.02 - 1.20, HW 0.74 - 0.89, SL 1.36 - 1.60, PW 0.51 - 0.60, WL 1.70 - 1.94 (6 measured). Indices: CI 70 - 74, SI 173 - 189, OI 28 - 30, EPI 65 - 73, DTI 232 - 250. As holotype but the entire van Noory series of paratypes without setae on the first gastral tergite and without setal pits on that sclerite, as is also the case with Fisher paratvpe 2244(10)18, which makes “first gastral tergite lacks setae” the predominant condition in the species. In all paratypes the anterior seta on the frontal carina is absent, the only one present being that at about the level of the midlength of the eye.

Type Material

Holotype worker, Gabon: Provo Ogooue-Maritime, Res. Monts Doudou, 25.2 km. 304° NW Doussala, 2°13.6'S, 10°23.7'E, 640 m., 14-19.iii.2000, #2282, on low vegetation, rainforest (B.L. Fisher) (California Academy of Sciences). Paratypes. 2 workers with same data as holotype but 14.iii.2000, #2244(10) 18 and #2246(5)3 (CASC). 6 worker, Gabon: Provo Ogoove-Maritime, Reserve des Monts Doudou, 25.2 km. 304°NW Doussala, 2°13.63'S, 10'23.67'E, 660 m., 16.iii,2000, sweep, coastal lowland rainforest, undergrowth, low canopy in forest, #GAOO-S93-2, #GAOO-SI05-2, #GAOO-SI12-5, #GAOO-SI24-2, #GAOO-SI26-4, #GAOO-SI34-4 (s. van Noort) (CASC, The Natural History Museum).

Etymology

Named in honour of Dr Stefan Schodl, a friend and colleague, formerly of NHMW, who died in 2005.

References

  • Bolton, B. 2007b. Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste. Contributions of the American Entomological Institute. 35(1): 1-149.