Odontomachus scifictus

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Odontomachus scifictus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Odontomachus
Species: O. scifictus
Binomial name
Odontomachus scifictus
Sorger & Zettel, 2011

Collected in shaded, humid places mostly in degraded, dipterocarp forests. The type locality was near a stream.

Identification

Sorger & Zettel (2011) - Odontomachus scifictus is very similar to Odontomachus philippinus, but differs in the extension of the smooth area on the mesopleuron reaching the meso-metapleural suture, and by the distinct tubercles of the petiole (petiole in anterodorsal aspect widest at tubercles). The distribution of O. scifictusand O. philippinus are separated by another vicariant form, Odontomachus alius.

Keys including this Species

Distribution

Endemic to the Philippines and only known from the island of Camiguin.

Distribution based on Regional Taxon Lists

Indo-Australian Region: Philippines (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.

  • scifictus. Odontomachus scifictus Sorger & Zettel, 2011: 154, figs. 7, 13, 19, 46 (w.) PHILIPPINES (Camiguin I.).

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Measurements: holotype worker: CI 70, HL 3.32, HW 2.33, MdI 60, MdL 2.00, MsL 4.47, PnW 1.38, PtH 1.36, PtL 1.48, PtW 0.50, SI 141, SL 3.28, TL 14.50; paratype worker with smallest HW: CI 67, HL 2.93, HW 1.97, MdI 54, MdL 1.58, MsL 3.80, PnW 1.18, PtH 1.15, PtL 1.28, PtW 0.42, SI 151, SL 2.97, TL 12.63; paratype worker with largest HW: CI 71, HL 3.42, HW 2.42, MdI 59, MdL 2.00, MsL 4.80, SI 139, SL 3.37, PnW 1.43, PtH 1.38, PtL 1.60, PtW 0.52, TL 15.25.

Structures: Striation on head extending from frontal lobes to ocular ridge, rest of head smooth and shiny. Pronotum with fine, roughly round striation, closed circles or loops clearly visible in dorsal view; posterolateral parts without striation, smooth and shiny. Mesopleuron smooth and shiny, some fine transverse striation may occur to varying extent but always at least the central region smooth and shiny. S-shaped, long and acute petiolar spine, slightly bent backwards. Entire ant appearing very shiny / glossy.

Pilosity: Pubescence sparse, short.

Colour: Uniformly reddish brown.

Type Material

Camiguin Island, municipality of Mambajao, W of Mambajao, near spring of Katibawasan, ca. 350-400 m a.s.l. Holotype worker (University of San Carlos Entomological Collection): Camiguin: W Mambajao, Katibawasan spring area, 350-400 m, 13. and 15.III.2010, leg. H. Zettel & C. V. Pangantihon (515). Paratypes (70 workers; CSW, Herbert and S.V. Zettel, Naturhistorisches Museum Wien, Vienna, University of the Philippines, USC): same locality data as holotype, 65 workers. W Mambajao, Benon, Saran – Kampanan, 500-800 m, 16. and 18.III. 2010, leg. H. Zettel & C. V. Pangantihon (516), 1 worker. Mambajao, Yumbing, 28.X.2008, leg. C. V. Pangantihon (P306), 1 worker. Catarman, Mainit, Tuasan Falls, 23.X.2008, leg. C. V. Pangantihon (P302), 3 workers.

Etymology

This name serves as an homage to early science fiction movies incorporating ants – the first author came across a poster of the movie “Empire of the Ants” (1977) directed by Bert I. Gordon that clearly depicts a giant, dangerously looking Odontomachus species and decided that such prominent display should be memorialized.

References