Taxonomic position

Cohort Gamasina

Subcohort Parasitiae

Family: Parasitidae Oudemans

Subfamily: Parasitinae

Anadenosternum Athias-Henriot, Carpaidion Athias-Henriot, Colpothylax Athias-Henriot, Cornigamasus Evans & Till, Dicrogamasus Athias-Henriot, Erithosoma Athias-Henriot, Eugamasus Berlese,   Leptogamasus Trägårdh, Mixogamasus Juvara-Bals, Nemnichia Oudemans, Oocarpais Berlese, Paracarpais Athias-Henriot, Parasitellus Willmann, Parasitus Latreille, Pergamasellus Evans,  Phityogamasus Juvara-Bals & Athias-Henriot, Phorytocarpais Athias-Henriot, Porrhostaspis Mueller, Psilogamasus Athias-Henriot, Rhabdocarpais Athias-Henriot, Schizosthetus Athias-Henriot, Trachygamasus Berlese, Zelogamasus Hennessey & Farrier

Taxa keyed separately: Gamasodes Oudemans, Poecilochirus G. & R. Canestrini

 

Diagnostic characters:

• Divided dorsal shield

• Shield-shape intercoxal shield

• Acrotarsus often present on legs I

• Phoretic on insects and other animals.

 

Similar taxa. Deutonymphs of Pergamasinae lack the acrotarsus on legs I and are not phoretic on insects or other animals.

 

Comments.  In general, immature mites can only be identified if they can be associated with adult females.  However, some of the bingo characters may work on immatures, as in the case of a monogynaspid mite with an acrotarsus.

 

References

Krantz GW. 1986. A Manual of Acarology. Second edition, 1978, emended 1986. (Oregon State University Book Stores, Corvallis, Oregon USA).