Comprehensive Description

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6. Camponotus denticulatus Kirby HNS . MacDonnell Range; Paisley Bluff.

The specimen from Paisley Bluff is a dè'alated female of the genus Iridomyrmex HNS , apparently identical with those placed under the preceding species, and not in condition to be named. The species from the MacDonnell Range appears to be valid, and is here redescribed as Camponotus (Tanaemyrmex) denticulatus Kirby HNS .

Worker Minor.-Length, 8-5.9 mm.

Brownish red. Posterior half of the head, top of the pronotum and mesonotum, whole of the node and gaster black. Apical margin of the segments of the gaster yellowish.

Opaque. Densely and finely punctate throughout.

Hair yellowish, long and erect, very sparse throughout. Pubescence greyish, fine, very abundant throughout, but not hiding the sculpture. There is a row of bristles on the underside of the tibia.

Head longer than broad, as broad in front as behind, the occipital border strongly, the sides feebly, convex. Frontal carinae diverging behind, with a feeble but distinct carina between them. Clypeus broad and convex, feebly carinate, the anterior border broadly produced, convex and feebly crenulate. Eyes large and convex, placed at the posterior angles. Scapes extending beyond the occipital border by half their length; first and third segments of the funiculus of equal length, second slightly shorter. Mandibles large, armed with six large sharp teeth. Thorax two and a-quarter times longer than broad. Pronotum one-third broader than long, convex on the sides and above. Mesonotum slightly broader than long, convex above. Epinotum three times longer than broad on top, almost parallel, the declivity very short, hardly apparent. Node twice as broad as long, ali four sides convex; in profile twice as high as long, parallel, the anterior and posterior faces straight, the dorsum convex. Gaster ovai, longer than broad. Legs long and slender.

Worker Major.-Length, 10-10.5 mm.

Colour and sculpture as in the worker minor, but a little more shining. Pubescence not so abundant.

Head оnе-fourth broader than long, much broader behind than in front, the occipital border straight, the sides convex. Scapes extending beyond the occipital border by fully one-third of their length. Eyes large and rather flat, placed about half their diameter from the occipital border. Ocelli represented by three small depressions, the anterior largest. Thorax similar but larger. Node three times broader than long, straight in front and behind, sides convex; in profile scale-like, the anterior face strongly convex, the. posterior straight. Legs robust. Habitat.-MacDonnell Range.


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