Palpipalpus

Key characters

• with the full complement of dorsal setae (Fig. 1)
• e2 and f2 usually inserted in an almost marginal position (Fig. 1)
• h2 not elongate
• anterior margin of prodorsum with pair of rounded lobes forming a shallow median notch anterior to v2 (Fig. 1a)
• ventral and genital plates not developed, membranous (Fig. 2)
• anal plates membranous
• 2 pairs ps setae inserted along median edge of anal plates (Fig. 2)
• the expression of seta v' on trochanter II is delayed until the adult stage (normally expressed in the deutonymph)
• with claw-like true claws
• males with solenidia on palp and tarsi I-II enlarged, swollen (Fig. 3)

Similar taxa

Aegyptobia - with 3 pairs of ps setae; setae e2, f2 inserted in true submarginal position

Crossipalpus - seta f2 absent; without any anterior projections on prodorsum; palp tibia with one seta (two in Palpipalpus); genua I-IV 1-1-0-0 (2-2-0-0 in Palpipalpus)

Meyeraepalpus - with 3 pairs of ps setae; gnathosoma partially concealed beneath prodorsum; e2, f2 in true submarginal position; seta d absent on femur III

Phytoptipalpus - without any anterior projections on prodorsum; seta v' on trochanter II is expressed in the deutonymph

Number of species

One - P. hesperius

Authority

Beard & Seeman

Distribution

Australia

Hosts

Allocasuarina fraseriana, Allocasuarina sp. (Casuarinaceae)

Colour

red when alive

eggs red

Remarks

This is a recently described genus (see Beard, Seeman & Bauchan (2014).