Camponotus marcens Forel, 1907

McArthur, A. J., 2009, New species, new status and new synonymy for Camponotus from Australia (Hymenoptera: Formicidae)., Myrmecologische Nachrichten 12, pp. 273-286 : 278-279

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

Camponotus claripes marcens Forel, 1907a .

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.

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