Flat Mites of the World

Cenopalpus

Key characters

  • c2 present; d2, e2 absent (Figs. 1, 2)
  • f2 present or absent; when present inserted in lateral position (as in Brevipalpus) (Figs. 1, 2)
  • h2 not elongate (Figs. 1, 2, 3)
  • anterior margin of prodorsum with broad flat projection extending over coxae I-II and gnathosoma (similar to Brevipalpus) (Figs. 4, 5); can be reduced in some species (Fig. 6)
  • ventral plate distinct, surrounded by characteristic cuticle pattern (Figs. 7, 8)
  • genital and anal plates well developed (Fig. 9)
  • 2 pairs ps setae
  • 4 segmented palp (rarely 3 segments)
  • solenidia on tarsus I-II long, slender (Fig. 10)
  • often with a characteristic colicular pattern in dorsal cuticle (Figs. 1, 2, 3); though dorsal cuticle can be mostly smooth or weakly wrinkled (Fig. 11)

Similar taxa

Brevipalpus: dorsal setae c2 absent; solenidia on tarsi I-II short and rod-like (Fig. 10) (except a few species with long solenidia on tarsi I-II, e.g. B. recki)

Number of species

over 60

Authority

Pritchard and Baker

Distribution

Most species are recorded from Western Palearctic region (30 spp.) and Oriental region (17 spp.).

Countries include: Crete, Egypt, Greece, Iran, Israel, Italy, Spain, Turkey, Ukraine.

Hosts

Several families including most commonly Rosaceae, followed by Oleaceae, Pinaceae.

Colour

most species are red when alive

<em>Cenopalpus</em>

Fig. 1. Cenopalpus pulcher female dorsum.

<em>Cenopalpus</em>

Fig. 2. Cenopalpus spinosus female dorsum.

<em>Cenopalpus</em>

Fig. 3. Cenopalpus pulcher female dorsum (image: Eric Erbe, USDA).

<em>Cenopalpus</em>

Fig. 4. Cenopalpus lanceolatisetae female prodorsum, indicating anterior broad flat projection.

<em>Cenopalpus</em>

Fig. 5. Cenopalpus spinosus female prodorsal projection (indicated by arrows).

<em>Cenopalpus</em>

Fig. 6. Cenopalpus nr C. lineola female prodorsum, indicating reduced anterior projection.

<em>Cenopalpus</em>

Fig. 7. Cenopalpus pulcher female venter - note characterisitc cuticle surrounding ventral plate.

<em>Cenopalpus</em>

Fig. 8. Cenopalpus pulcher female venter - note characterisitc cuticle surrounding ventral plate.

<em>Cenopalpus</em>

Fig. 9. Cenopalpus pulcher female posterior venter, indicating well developed plates.

<em>Cenopalpus</em>

Fig. 10. Solenidion on tarsus I-II of Brevipalpus (short, rod-like) and Cenopalpus (long, slender) (indicated by arrows).

<em>Cenopalpus</em>

Fig. 11. Cenopalpus nr C. lineola female dorsum, with mostly smooth dorsal cuticle.