Fact Sheet

Barychelidae: Sasoninae: Sason


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Total length

Medium (4–8mm).

Distribution

Western Australia, Queensland, New Guinea.

Habitat

Tropical rainforest, swamp.

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 or recurved.

Eyes eight eyes; subquadrate group about 0.3–0.7 of head-width; two or three rows; rows equal in width or back row wider; on tubercle.

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

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

Labium wider than long; cuspules in female few, 10 or less; in a straight line.

Sternum shield-shaped; sigilla with three pairs of sigilla.

Legs

Preening combs on metatarsi absent; tarsi basally with several small clavate and many distally filiform trichobothria or with large clavate trichobothria for length.

Claws two; paired claws 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, on tarsi and metatarsi I, II.

Male Palp

Cymbium with scopula.

Genera included

Sason.

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