Eremaeozetidae

Colloff, Matthew J., 2012, New eremaeozetid mites (Acari: Oribatida: Eremaeozetoidea) from the south-western Pacific region and the taxonomic status of the Eremaeozetidae and Idiozetidae, Zootaxa 3435, pp. 1-39 : 32

Key to genera of Eremaeozetidae

The following keys are to adults, without the cerotegument present.

1. Notogaster strongly convex in lateral view; notogaster waisted anteriorly in region of pteromorphs; lenticulus strongly protuberant and positioned anteriorly on notogaster; dorsosejugal suture indistinct ( Fig. 18 )..................... Idiozetes

- Notogaster flat or concave laterally, with centrodorsal convex region; not waisted anteriorly in region of pteromorphs; lenticulus slightly or strongly protuberant; dorsosejugal suture complete, well-defined............................... 2

2. Lamellae extremely long, extending well beyond rostrum, strongly recurved apically; tutorium prominent, projecting; setae ad 2-3 positioned close together near lateral curve of ventral plate; dorsosejugal suture transverse; bounded laterally by conical apophyses of setae c 2 positioned on reduced dorsosejugal lobes ( Fig. 11 )................................... Retrozetes

- Lamellae long, extending well beyond rostrum, but not strongly recurved apically; tutorium present as a thin lath, not strongly projecting; setae ad 2-3 positioned on posterior margin of anal plate; dorsosejugal suture acutely pointed medially; dorsosejugal lobes prominent, directed anteriorly....................................................................... 3

3. Notogaster with a U-shaped pre-lenticular structure, separated from lenticulus by transverse ridge of cuticle; with transverse ridge in region of lenticulus..................................................................... Mahunkaia

- Notogaster without a U-shaped pre-lenticular structure; with transverse ridge in region of lenticulus.................... 4

4. Posterior prodorsum with median V-shaped projection; dorsosejugal suture transverse or bowed; lenticulus positioned some distance posterior of dorsosejugal suture ( Fig. 9 )..................................................... Rogerzetes

- Posterior prodorsum without median V-shaped projection; dorsosejugal suture strongly convex, projecting anteriorly; lenticulus positioned close to apex of dorsosejugal suture ( Fig. 1 )..................................... Eremaeozetes

Figures

FIGURE 1. Eremaeozetes schatzi sp. nov., holotype female; a) dorsal, with cerotegument; b) dorsal, with cerotegument removed; c) lateral aspect with cerotegument removed.

FIGURE 9. Rogerzetes samueli sp. nov., holotype female; a) dorsal, with cerotegument; b) dorsal, cerotegument removed.

FIGURE 11. Retrozetes koghisensis sp. nov., holotype female, cerotegument removed; a) dorsal; b) ventral; c) lateral aspect.

FIGURE 18. Idiozetes hagenensis sp. nov., holotype female, cerotegument removed; a) dorsal; b) ventral; c) lateral aspect.