Pseudofeltria (Acariformes: Pionidae) In Europe: Three Previously Described Taxa, A Species New To Science From The Northern Apennines, And A Redefinition Of Foreliinae Author Gerecke, R. text Acarologia 2014 2014-03-28 54 1 57 67 http://dx.doi.org/10.1051/acarologia/20142115 journal article 7299 10.1051/acarologia/20142115 60950549-402f-4d66-9f88-46d51e00c4f1 2107-7207 4667251 Genus Pionacercopsis K. Viets, 1926 Diagnosis (after Cook 1974 , modified) — Idiosoma soft in female, but with dorsal and ventral shields in male. Coxal plates in four groups in female, but Cx- I+II medially fused and Cx-III+IV closely in touch in male. Cx-I+II with short posterior apodemes, Cx- IV medial margin well developed in male, in females medial margin of Cx-III+IV mostly formed by Cx-III. Genital field with three pairs of large acetabula; in females genital plates triangular, with strongly reduced sclerotized surface, mostly covered by acetabula and with concave medial and lateral margins between anterior and posterior acetabula. Males without petiole. P-4 mediodistally with small peg-like seta. Male IV-L exhibiting sexual dimorphism: IV-L-4 with a spur-like extension covered by numerous peg-like setae, IV-L-6, which is bowed with 7-8 peg-like setae on concave margin. Discussion — Up to date, Pionacercopsis was ranked as a subgenus of Pionacercus . However, distinct character states (a long and slender palp and rather large, circular acetabula in both sexes, in males the development of a dorsodistal spur on IV- L-4, in females the reduction of the sclerotized genital plate surface around the acetabula) suggest to consider this taxon as a separate genus.