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Camponotus trietericus
| Camponotus trietericus | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Camponotus |
| Subgenus: | Myrmamblys |
| Species group: | inquilinus |
| Species: | C. trietericus |
| Binomial name | |
| Camponotus trietericus Menozzi, 1926
| |
Known from Quezon Province and Laguna Province, Luzon Island, Philippines.
Identification
Zettell et al. (2018) - Minor worker: Bicoloured, the black gaster strongly contrasting with the orange forebody; gaster tergites 1 (–2) with variably large orange (-brown) spots. Entire body densely microreticulated and matt. Vertex domed. Clypeus basally very shallowly emarginated in middle. Flagellum of normal length. Dorsal outline of mesosoma slightly convex. Node of petiole stout. Major worker unknown.
Camponotus trietericus has a unique colour pattern, being the only species with orange patches on a black gaster. It is the only bicoloured species of the Philippines, where it is probably endemic. The black tergites strongly contrast with the orange petiole. The entire surface is densely reticulated and matt. The vertex of the disproportionally large head is raised in a dome-like shape, sometimes strongly.
Camponotus trietericus and Colobopsis corallina have a very similar colour pattern, notably the orange patches on gaster tergites 1 and 2. A mixed sample from Luzon indicates that these two species forage together.
Keys including this Species
Distribution
Described from Mt. Makiling in Laguna Province and recorded from nearby Quezon Province, both on Luzon Island. Probably restricted to the Philippines (Zettel et al., 2018).
Distribution based on Regional Taxon Lists
Indo-Australian Region: Philippines (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
Worker
Minor
  
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Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- trietericus. Camponotus (Myrmamblys) trietericus Menozzi, 1926e: 95 (w.) PHILIPPINES (Luzon).
- Type-material: holotype minor worker.
- Type-locality: Philippines: Luzon I., Mt Makiling (C.F. Baker).
- Type-depository: IEUB.
- Combination in Colobopsis: Laciny, Zettel, Kopchinskiy, et al. 2018: 29 (in text);
- combination in Camponotus (Myrmamblys): Zettel, Balàka, et al. 2018: 139.
- Junior synonym of Colobopsis corallina: Laciny, Zettel, Kopchinskiy, et al. 2018: 29 (in text).
- Status as species: Chapman & Capco, 1951: 234; Baltazar, 1966: 271; Bolton, 1995b: 127; McArthur, 2012: 56; Zettel, Balàka, et al. 2018: 139.
- Distribution: Philippines (Luzon).
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Zettell et al. (2018) - holotype (from illustration): Ward’s Indices: ASM/HWex 0.31; ASM/CLW 0.70; CLW/CLL 1.36. non-type specimens (n = 2): HW 1.20, 1.30; HL 1.35, 1.37; SL 1.37, 1.57; SW 0.14, 0.15; EL 0.35, 0.38; ML 1.83, 2.02; HaL 0.24, 0.32; FeL 1.48, 1.55; CI 87, 97; SI 115, 120; EI 29; FeI 114, 130. – Ward’s Indices: ASM/HWex 0.28, 0.29; ASM/CLW 0.59, 0.62; CLW/CLL 1.32, 1.37.
Structures: Entire body with dense microreticulation, matt. Head roundish, vertex domed, sometimes strongly. Lateral outline of eye minimally surpassing outline of head. Shiny midline of frons weakly developed. Clypeus with very shallow medial emargination of basal margin; distal margin almost evenly rounded; median impression very short, at base. Mandible strongly punctate, with five teeth. – Mesosoma slender and low; dorsal outline with weak indentions between pro- and mesonotum and between mesonotum and propodeum. – Petiole with stocky node, its anterior and posterior face almost parallel, apex obliquely truncated. – Gaster tergites with dense reticulation, absent only on very narrow marginal stripes (ca. 0.01 mm) on tergites 3 and 4.
Pilosity: Entire dorsum with long whitish standing setae, longest on vertex, propodeum, petiole, and apex of gaster. Subdecumbent pubescence short, thin, whitish; very sparse on head. Colour: Head, mandibles, scape, antennal segment 2, mesosoma, and petiole orange. Gaster black; tergite 1 (sometimes also tergite 2) with orange brown patches. Antennal segments 3–12 blackish brown. Legs dark brown.
Type Material
Zettell et al. (2018) - Holotype (?) minor worker (Istituto di Entomologia "Guido Grandi" ) from Philippines, "Luzon, Mt. Makiling, Baker, 20405 TYPUS C. (Myrmamblys) trietericus Typus Menoz”
References
- Baltazar, C.R. 1966. A catalogue of Philippine Hymenoptera (with a bibliography, 1758-1963). Pacific Insects Monographs 8: 1-488. (page 271, listed)
- Laciny, A., Zettel, H., Kopchinskiy, A., Pretzer, C., Pal, A., Salim, K.A., Rahimi, M.J., Hoenigsberger, M., Lim, L., Jaitrong, W., Druzhinina, I.S. 2018. Colobopsis explodens sp. n., model species for studies on “exploding ants” (Hymenoptera, Formicidae), with biological notes and first illustrations of males of the Colobopsis cylindrica group. ZooKeys 751: 1-40 (doi:10.3897/zookeys.751.22661).
- Menozzi, C. 1926e [1925]. Nuove formiche delle isole Filippine e di Singapore. Atti Soc. Nat. Mat. Modena 56[=(6)4 4: 92-103 (page 95, worker described)
- Zettel, H., Balàka, P., Yamane, S., Laciny, A., Lim, L., Druzhinina, I.S. 2018. New mimetic ants from Southeast Asia – the Camponotus (Myrmamblys) inquilinus group (Hymenoptera: Formicidae: Camponotini). Zeitschrift der Arbeitsgemeinschaft Österreichischer Entomologen 70:125-174.
References based on Global Ant Biodiversity Informatics
- Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327