Rodhainyssini Fain, 1956

Bochkov, Andre V., Zabludovskaya, Svetlana & Oconnor, Barry M., 2008, Phylogeny and systematics of the endoparasitic astigmatid mites (Acari: Sarcoptiformes) of mammals: families Gastronyssidae, Lemurnyssidae, and Pneumocoptidae, Zootaxa 1951 (1), pp. 1-152 : 44

Key to genera of the tribe Rodhainyssini Fain, 1956

1. Tarsi III–IV distinctly shorter than respective tibiae. Setae s III–IV absent ............................................................... 2

– Tarsi III–IV subequal to respective tibiae. Setae s III–IV present ......................................... Eidolonyssus Fain, 1967

2. Anus situated ventrally. Rudiments of pretarsi III–IV absent .................................................................................... 3

– Anus situated terminally. Rudiments of pretarsi III–IV present ........................................ Mycteronyssus Fain, 1970

3. Setae subc. absent. Idiosoma elongated, ellipsoid in outline, with butterfly-like sclerotization ventro-medially between coxal fields II. Propodonotal shield fused with apodemes I. Setae d I–IV subequal or shorter than respective tarsi ............................................................................................................................................................................. 4

– Setae subc. present. Idiosoma elongated, slightly rhomboid in outline, with straight or/and oblique sclerotized bands ventro-medially between coxal fields II. Propodonotal shield separated from apodemes I. Setae d I–IV distinctly longer than respective tarsi .................................................................................................. Rodhainyssus Fain, 1956

4. Posterior margin of propodonotal shield concave. Coxal fields III closed. Setae f2 present. Setae ps 2 in males absent. Setae ps3 and h3 spine-like ......................................................... Pseudoopsonyssus Bochkov et OConnor gen. nov.

– Posterior margin of propodonotal shield widely rounded or bearing median projection. Coxal fields III open. Setae f2 absent. Setae ps 2 in males present. Setae ps3 represented by alveoli or absent; setae h3 represented by alveoli or microspines ............................................................................................................................. Opsonyssus Fain, 1959