Ologamasus Berlese, 1888

Santos, Jandir C., Castilho, Raphael C., Silva, Edmilson S. & De Moraes, Gilberto J., 2015, Two new species of Ologamasus (Acari: Mesostigmata: Ologamasidae) from Brazil with a key to the world species of the genus, Zootaxa 4058 (2), pp. 267-277 : 268

Ologamasus Berlese, 1888

Gamasus (Ologamasus) Berlese, 1888: 194 .

Gamasus (Hologamasus) .— Berlese, 1892: 62.

Ologamasus (Ologamasus) .— Vitzthum, 1943: 756; Baker & Wharton, 1952: 73.

Ologamasus .— Berlese, 1913: 202; 1914: 137; Vitzthum, 1931: 142; Baker & Wharton, 1952: 73; Ryke, 1962: 160; Lee, 1970: 84; Karg, 1976a: 185; Silva et al., 2007: 61; Karg & Schorlemmer, 2009: 74.

Ologamasellus Berlese, 1914: 139 . Synonymy by Oudemans (1939).

Ologamasellus .— Berlese, 1916: 162.

Ologamaselus [sic].— Vitzthum, 1931: 142.

Type species: Gamasus aberrans Berlese, 1888 . Subsequent designation by Oudemans (1936) to replace Gamasus calcaratus Koch , which is the type species of Holoparasitus Oudemans, 1936 (= Ologamasus Berlese, 1906 , not Ologamasus Berlese, 1888 ).

Diagnosis (adult female). Within the Ologamasidae , Ologamasus species are characterised by having the podonotal and opisthonotal shields fused, forming a holonotal shield that is fused with the ventrianal shield; dorsal idiosomal setae aciculate and smooth, or spatulate and pilose; podonotal region of dorsum with 16–23 pairs of setae; opisthonotal region with 12–20 pairs of setae; without setae on unsclerotised integument along lateral margins of podonotal and opisthonotal shields; setae j 1 and r 3 not inserted on protuberances; one pair of presternal plates; sternal shield not fused with section of endopodal plate between coxae III and IV; peritrematic plate fused with exopodal plate posteriorly to coxa IV but not with ventrianal shield.