Prolixus


           Fig. 1.   Prolixus forsteri  female   dorsum.

Fig. 1. Prolixus forsteri female dorsum.


           Fig. 2.   Prolixus corruginus  female   dorsum.

Fig. 2. Prolixus corruginus female dorsum.


           Fig. 3.   Prolixus  sp. female live, with eggs   laid within grooves in the leaf.

Fig. 3. Prolixus sp. female live, with eggs laid within grooves in the leaf.


           Fig. 4.   Prolixus  sp. nymph live, wedged   within a groove in the leaf.

Fig. 4. Prolixus sp. nymph live, wedged within a groove in the leaf.


Key characters

  • c1, c2, d2, e2 absent (Fig. 1)
  • f2 present (Fig. 1) or absent (Fig. 2)
  • h2 extremely elongate (Fig. 1)
  • elongate body, more than three times as long as wide
  • anterior margin of prodorsum with small median projection or smoothly rounded
  • ventral, genital and anal plates not developed
  • 2 pairs ps setae
  • 3 segmented palp
  • dorsum with prodorsal shield evident
  • ventral cuticle finely striate

Similar taxa

Acaricis - f2 present; palp 4-segmented; body not 3 X longer than wide

Cyperacarus - c1 present; e1, f3 absent; body not 3 X longer than wide

Gahniacarus - c1 present; e1 absent; body not 3 X longer than wide

Tenuipalpus - c1, f2 present/absent; palp 1-3 segmented; anterior margin of prodorsum with broad flat projection with median fork; body not 3 X longer than wide

Number of species

Two - P. corruginus, P. forsteri

Authority

Beard, Fan and Walter

Distribution

Australia

Hosts

Gahnia spp. (Cyperaceae)

Colour

  • bright red to orange with alive (Figs. 3-4)
  • eggs orange to red

Remarks

Individuals wedge themselves into grooves on underside of host leaf blades.

Eggs laid in grooves also (Fig. 3).