Camponotus jodina

Camponotus jodina
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Formicinae
Tribe:	Camponotini
Genus:	Camponotus
Subgenus:	Myrmopytia
Species:	C. jodina
Binomial name
	Camponotus jodina; Rasoamanana, Csősz & Fisher, 2017 Specimen Labels

Camponotus jodina is known from only two specimens collected in Parc National de Zahamena, Madagascar, in rainforest, at two different localities. Workers were found foraging on lower vegetation. Camponotus jodina occurs sympatric with Camponotus karaha at the Sahavorondrano River.

Identification

Rasoamanana et al. (2007) - Camponotus jodina is easily distinguishable from the other species of Myrmopytia on the basis of the following character combination: petiole surmounted by a conical node terminated with a blunt spine, PEW/CS 0.152 [0.149, 0.156], propodeum coarsely reticulate with a short vertical anterior face.

Keys including this Species

Key to Camponotus Myrmopytia workers

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -17.75257° to -17.75908°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Malagasy Region: Madagascar (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.

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.

Biology

Mimicry

Within Madagascar, there are four species of Camponotus, Camponotus imitator, Camponotus jodina, Camponotus karaha and Camponotus longicollis, that mimic the general form and behavior of the Aphaenogaster swammerdami group, specifically Aphaenogaster bressleri, Aphaenogaster gonacantha, Aphaenogaster makay, Aphaenogaster sahafina and Aphaenogaster swammerdami. These Camponotus mimics are often seen foraging with workers of Aphaenogaster, but potential benefits for Camponotus have not been studied (Csosz et al., 2021).

Castes

Worker

Images from AntWeb


Worker. Specimen code casent0231116. Photographer Estella Ortega, uploaded by California Academy of Sciences.	Owned by CAS, San Francisco, CA, USA.


Holotype of Camponotus jodina. Worker. Specimen code casent0152090. Photographer Michele Esposito, uploaded by California Academy of Sciences.	Owned by CAS, San Francisco, CA, USA.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

jodina. Camponotus jodina Rasoamanana, et al. 2017: 139, figs. 8B, 12, 18 (w.) MADAGASCAR.
- Type-material: holotype minor worker, 1 paratype minor worker.
- Type-locality: holotype Madagascar: Toamasina, Parc Nat. de Zahamena, Oribe River, -17.75908, 48.85468, 780 m., 22.ii.2009, BLF22344 (B.L. Fisher, et al.); paratype Parc Nat. de Zahamena, Sahavorondrano River, 765 m., 23.ii.2009, BLF22401 (B.L. Fisher, et al.).
- Type-depository: CASC.
- Distribution: Madagascar.

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

Description

Worker

Minor Head longer than wide, rear portion of head extended into a long neck, sides of head narrowed in front of eyes. CS 1.84 mm [1.80, 1.88] (n=2). Posterior margin of head glabrous, suberect genal setae present on sides of head in full-face view. Eyes located anterior to the midlength of head capsule in full-face view, PoOC/CL 0.417 [0.407, 0.426]. Frontal carina convex, FR/CS 0.228 [0.222, 0.234]. Scape distinctly surpassing posterior margin by almost half of its length, SL/CS 1.870 [1.851, 1.889]. Anterior margin of clypeus produced into an obtuse angle, lateral border straight. In profile, posteromedian portion of clypeus with an obtuse angle. ClyL/CL 0.225 [0.213, 0.237]. Mandible with 6 teeth, palps long with respect to head size.

Pronotum evenly curved over its length. Mesonotum straight and elongate, MPD/ CS 1.424 [1.422, 1.426]. Erect setae absent, appressed pubescence generally sparse. Mesothoracic spiracles prominent; propodeal dorsum evenly convex, its outline meeting the metanotal groove with transverse carina. ML/CS 2.294[2.255, 2.333].

Petiole nodiform. Dorsum of petiole strongly concave, tapering apically to a blunt spine, PEW/CS 0.152 [0.149, 0.156].

Entire body including antennae dark brown. Coxae, femora, and tibiae brown. Head, pronotum, fore-coxae and petiole microreticulate, mesonotum and propodeum reticulate-costate.

Type Material

Holotype worker: MADAGASCAR, Province Toamasina, Parc National de Zahamena, Onibe River, -17.75908 48.85468, 780 m, 22.ii.2009, rainforest, on low vegetation. (B.L. Fisher et al.). Collection code: BLF22344. Unique specimen identifier: CASENT0152090 (California Academy of Sciences). Paratype worker: MADAGASCAR, Prov. Toamasina, Parc National de Zahamena, Sahavorondrano River, -17.75257, 48.85725, 765 m, 23.ii.2009, rainforest, beating low vegetation. (B.L. Fisher et al.). Collection code: BLF22401. Unique specimen identifier: CASENT0153052 (CASC).

Etymology

This species is named for the shape of its petiole in profile; the Malagasy word “jodina” means directed upward.

References