Gamasiphis Berlese, 1904

Castilho, Raphael C., Narita, João Paulo Z. & de Moraes, Gilberto J., 2012, Three new species of Gamasiphis (Acari: Mesostigmata: Ologamasidae) from Brazil, with complementary information about Gamasiphis plenosetosus Karg and a key to the world species of the genus, Journal of Natural History 46 (31 - 32), pp. 1969-1998 : 1970-1971

Gamasiphis Berlese

Gamasiphis Berlese, 1904: 261 . Type species: Gamasus pulchellus Berlese, 1887 , by monotypy.

Gamasiphis .— Berlese (1906): 101; Berlese (1914): 137; Bregetova (1977): 308; Lee (1970): 42; Karg (1990): 321; Karg (1993): 169.

Ologamasellus (Micriphis) Berlese, 1914: 140 . Type species: Gamasiphis gamasellus Berlese, 1913 , by monotypy. Synonymy by Lee (1970).

Ologamasus (Micriphis) .— Baker and Wharton (1952): 73.

Micriphis.— Ryke (1962): 160.

Heteroiphis Tragårdh, 1952: 55 [in the original description, reported three times as a genus and once as a subgenus of an unspecified genus]. Type species: Heteroiphis arcuatus Tragårdh, 1952 , by original designation. Synonymy by Lee (1970).

Heteroiphis .— Ryke (1962): 160; Bhattacharyya (1968): 530.

Neogamasiphis Tragårdh, 1952: 57 . Type species: Neogamasiphis hamifer Tragårdh, 1952 , by original designation. Synonymy by Lee (1970).

Diagnosis of adults

Epistome of species of this genus with three anterior extensions, the anteromedial aciculate, spatulate or lanceolate, smooth or serrate, usually longer than the others (except G. elegantellus , G. elongatellus and G. pilosellus , which have the three extensions of similar lengths). Arthrodial process of chelicera in the form of a short coronet-like fringe. Dorsum of idiosoma totally covered by a large shield, extending lateroventrally, abutting the peritrematic shield and fusing with ventrianal shield posteriorly. Endopodal shield totally fused to sternal shield, composing a single unit that extends to level of posterior margin of coxa IV and which has a deep posterior concavity fitting the tongue-shaped genital shield. Exopodal shield distinctly represented by a subtriangular section between coxae I and II (not always clearly distinct) and an elongated section running from middle of coxa II to middle of coxa IV, the latter separated from the peritrematic shield by a line of unsclerotized cuticle; fused peritrematic shield and section of exopodal shield around posterior half of coxa IV extending posteriorly well beyond stigma, wider immediately behind coxa IV and progressively narrowing posteriorly to a pointed tip; separated from adjacent shields by lines of unsclerotized cuticle.