Retrozetes

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

publication ID

http://doi.org/ 10.5281/zenodo.282079

publication LSID

lsid:zoobank.org:pub:64ED546B-CAB9-449E-92B9-69B9748F861F

persistent identifier

http://treatment.plazi.org/id/03898793-FFC9-E76A-FF4E-4621FA637C8A

treatment provided by

Plazi

scientific name

Retrozetes
status

 

Key to species of Retrozetes  

1. Apices of lamellae S-shaped: curved posteriorly, then recurved anteriorly; median sclerotised bands of lamellar cuticle forming Y-shaped structure dorsally ( Fig. 15 View FIGURE 15 )................................................ R. novaecaledoniae   sp. nov.

- Apices of lamellae not S-shaped: only curved posteriorly, not recurved anteriorly; median sclerotised bands of lamellar cuticle sub-parallel or forming V-shaped structure dorsally........................................................... 2

2. Apex of rostrum visible in dorsal orientation, with acute projection; stalk of bothridial seta recurved; apices of lamellae separated by drop-shaped fissure ( Fig. 17 View FIGURE 17 )................................................. R. fernandezi   sp. nov.

- Apex of rostrum covered by lamellae in dorsal orientation, without acute projection; stalk of bothridial seta not recurved; apices of lamellae separated narrow slit or broad U-shaped or rectangular fissure................................... 3

3. Lamellar cuspides divided by broad rectangular or circular fissure; cerotegument thick, reticulate; lenticulus broader than long; notogastral margin scalloped in region of setae of h series; genital and anal plates separated by distance of half length of genital plate................................................................................................ 4

- Lamellar cuspides divided by narrow slit; cerotegument light, reticulate or amorphous; lenticulus longer than broad; notogastral margin smooth; genital and anal plates almost abutting ( Fig. 14 View FIGURE 14 )....................... R. mirabilis   sp. nov.

4. Small species (≤ 155 μm long), rostral seta long, thick, curved, blunt apically covered in cerotegument; head of bothridial seta broad, club-shaped; setae of ad series spaced equidistantly............................ R. hanswursti ( Mahunka, 1999)  

- Larger species (≥ 350 μm long), rostral setae short, thin, straight, without thick cerotegument; head of bothridial seta narrow, elongate, expanding apically; setae ad 2-3 positioned close together lateral of anal plates ( Fig. 11 View FIGURE 11 )..... R. koghisensis   sp. nov.