Genus Arrhopalites Börner, 1906.
Ocelli generally, but not always, reduced in number. Ant. IV subdivided. Ant. III generally with peg-like organ. Clavate tenent hairs absent. The dens dorsally and laterally with conical pegs.
This genus is represented in New Zealand by one endemic species.
Arrhopalites coccineus sp. nov. Plate 70, figs. 484–487.
Colour: In life, entirely a blackish-crimson to a bright crimson. Mounted, entirely a deep crimson-purple with occasional small blister-like markings on body, particularly on basal segments of legs.
Clothing: Sparsely clothed with moderately long plain setae.
Body: Length up to 0.85 mm. Antennae about as long as the head. Ant. I: II: III: IV as 18: 25: 34: 61. Ant. IV with indistinct constrictions, not subdivided. Six large equal ocelli on each side on dark pigment patches.
Legs: Claw with prominent inner tooth at two-thirds and generally a small inner tooth at one-third. No outer teeth. Empodial appendage on front foot, slender, lanceolate, with sub-apical bristle curving inwards to tip of claw; on the other feet this appendage is more robust with an inner angle and with sub-apical bristle curving whip-like to, generally, beyond tip of claw. No tenent hairs.
Furcula: Manubrium to dens to mucro as 20: 64: 27. Mucro tapering with terminal upturned blunt tooth and the lamellae with strong sharp tooth-like serrations. Dens ventrally with several extra long setae.
Locality: Karori, Wellington, on newly-dug ground.
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Type: Slide 3/965, Dominion Museum Collection.