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Species: Camponotus marcens   Forel, 1907 

Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2018)

Camponotus claripes subsp. marcens Forel, 1907j PDF: 300 (s.w.) AUSTRALIA. Australasia. AntCat AntWiki

Taxonomic history

Raised to species: McArthur, 2009 PDF: 278.

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Oceania: Australia
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Australasia

Taxonomic Treatment (provided by Plazi)

Treatment Citation: McArthur, A. J., 2009, New species, new status and new synonymy for Camponotus from Australia (Hymenoptera: Formicidae)., Myrmecologische Nachrichten 12, pp. 273-286

Camponotus marcens ForelHNS, 1907 stat. n. (Figs. 7, 8)

Camponotus claripes marcens ForelHNS, 1907 a.

Type material examined: 2 syntypes (GMNH): 1 major and 1 minor worker " Forel Typus Hamburg SW Aust Exp 1905 Stat 101 Mundaring Weir 9. VII".

Other material examined (in SAMA): Western Australia: Geike Gorge (18° 04' S, 125° 44' E), 4.VII.1967, leg. R. H. Mew & G. Campbell; Jurien Bay (30° 18' S, 115° 00' E), 14.VIII.1996, leg. B. B. Lowery; Mundaring (31° 54' S, 116° 10' E), 1.VI.1987, leg. B. Heterick; Wagerup (32° 55' S, 115° 54' E), leg. J. D. Majer.

Worker description: Major worker. Head sides posterior three quarters straight slightly tapering anteriorly, anterior quarter convex more strongly tapering anteriorly. Vertex nearly straight, in side view swollen. Clypeus anterior median third projecting forward, bounded by two blunt teeth, concave between. Mandibles with 6 teeth. Integument mainly glossy. Mesosoma in profile uniformly convex. Me-tanotum with two close transverse lines followed posteriorly by a short steep decline. Propodeum angle 135°, rounded. PD / D ~ 1.5. Petiolar node summit tending sharp. Erect setae on mesosoma dorsum sparse and scattered. Genae and underside of head with plentiful erect setae. Scape with plentiful short setae raised to 10° with a few erect. Tibiae with short setae raised to 10°. Colour: head and gaster reddish brown, mesosoma yellow brown.

Minor worker. Head sides straight tapering posteriorly. Vertex strongly convex. Clypeus anterior margin projecting anteriorly, feebly convex. Mandibles with 6 teeth. Integument mainly glossy. Mesosoma in profile uniformly weakly convex. Propodeal angle rounded. Petiolar node thick, length about half height, summit blunt. Erect setae on mesosoma dorsum sparse and scattered. Genae and underside of head with plentyful erect setae. Scape with plentiful short setae raised to 10° with a few erect. Tibiae with short setae raised to 10°. Colour: reddish yellow.

Fig. 7: Camponotus marcensHNS, major worker above, minor worker below; left: frontal view of head; right: habitus, lateral.

Fig. 8: Collection localities of C. marcens, specimens in SAMA.

Worker description: Major worker. Head sides posterior three quarters straight slightly tapering anteriorly, anterior quarter convex more strongly tapering anteriorly. Vertex nearly straight, in side view swollen. Clypeus anterior median third projecting forward, bounded by two blunt teeth, concave between. Mandibles with 6 teeth. Integument mainly glossy. Mesosoma in profile uniformly convex. Me-tanotum with two close transverse lines followed posteriorly by a short steep decline. Propodeum angle 135°, rounded. PD / D ~ 1.5. Petiolar node summit tending sharp. Erect setae on mesosoma dorsum sparse and scattered. Genae and underside of head with plentiful erect setae. Scape with plentiful short setae raised to 10° with a few erect. Tibiae with short setae raised to 10°. Colour: head and gaster reddish brown, mesosoma yellow brown.

Minor worker. Head sides straight tapering posteriorly. Vertex strongly convex. Clypeus anterior margin projecting anteriorly, feebly convex. Mandibles with 6 teeth. Integument mainly glossy. Mesosoma in profile uniformly weakly convex. Propodeal angle rounded. Petiolar node thick, length about half height, summit blunt. Erect setae on mesosoma dorsum sparse and scattered. Genae and underside of head with plentyful erect setae. Scape with plentiful short setae raised to 10° with a few erect. Tibiae with short setae raised to 10°. Colour: reddish yellow.

Fig. 7: Camponotus marcensHNS, major worker above, minor worker below; left: frontal view of head; right: habitus, lateral.

Fig. 8: Collection localities of C. marcens, specimens in SAMA.

Comparative notes: Camponotus marcens stat.n. has the sides of its head converging posteriorly in the minor worker as shown in Fig. 7 whereas in C. claripes the sides are parallel as shown in Fig. 1.

Distribution: See Fig. 8

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in native veg., rural environ..

Found most commonly in these microhabitats: 1 times Nest, 1 times soil, 1 times From jarrah (E. marginata), 1 times unter einen Stein in lehmigen Erdnest.

Collected most commonly using these methods: 2 times Pitfall, 1 times By hand, 1 times Pyrethrum knockdown.

Type specimens: syntype of Camponotus marcens: casent0910373, casent0910374



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