Fact Sheet

Barychelidae: Idioctinae: Idioctis


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Total length

Large (8–30mm).

Distribution

Northern Territory, Western Australia, Christmas Island, Queensland, New Caledonia, Fiji, New Guinea.

Habitat

Intertidal or littoral.

Spinnerets

Four. PLS segments unequal in length; apical segment domed or triangular.

Cephalothorax

Caput of females gently raised, higher than thoracic portion; fovea of females more or less straight.

Eyes eight eyes; group tiny, about 0.3 of headwidth; two or three rows; back row wider; on tubercle.

Chelicerae fangs longitudinal; retromargin without teeth; middle row of teeth distinct; intercheliceral tumescence in male absent; rastellum absent or with weak spines.

Maxillae longer than wide; anterior lobe absent; serrula absent; cuspules in female few, clustered at anterior inner corner.

Labium about as wide as long; cuspules absent.

Sternum long, narrow-ovoid; with three pairs of sigilla.

Legs

Preening combs on metatarsi absent; tarsi with filiform trichobothria.

Claws two; paired claws in female with one row of teeth on the inner margin or bare; with dense tufts; tufts movable and separate.

Males usually with coupling spur on tibia I.

Scopula in females, only on tarsi and metatarsi I, II.

Male Palp

Cymbium with scopula.

Genera included

Idioctis.

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