Graminaseius Chant & McMurtry

Lofego, Antonio Carlos, Barbosa, Marina Ferraz De Camargo, Demite, Peterson Rodrigo & Moraes, Gilberto José De, 2024, Phytoseiidae (Acari: Mesostigmata) of the subfamily Amblyseiinae from Brazil, Zootaxa 5439 (1), pp. 1-306 : 74

publication ID	https://doi.org/ 10.11646/zootaxa.5439.1.1
publication LSID	lsid:zoobank.org:pub:35D1ECC2-84B7-431A-90C9-45BDC8D6FAED
persistent identifier	https://treatment.plazi.org/id/6B7EFF45-ED2A-3F43-FF11-7418FF2CFBE4
treatment provided by	Plazi
scientific name	Graminaseius Chant & McMurtry
status

Treatment

Graminaseius Chant & McMurtry View in CoL View at ENA

Graminaseius Chant & McMurtry, 2004a: 215 View in CoL .

Graminaseius View in CoL .— Chant & McMurtry, 2007: 83.

Type species. Amblyseius graminis Chant, 1956: 34 .

Main distinguishing characteristics. Dorsal shield mostly smooth. Idiosomal setal pattern 10A:9B/JV-3:ZV; setae s4, Z4 and Z5 distinctly larger than most other setae; ratio s4 / S2>3.0. Sternal shield usually slightly wider than long. Ventrianal shield pentagonal. Spermathecal calyx saccular; atrium bifurcate/vacuolate at juncture with major duct. Fixed cheliceral digit with 3–5 teeth distad pilus dentilis (occasionally with other two teeth basally; with 10 evenly distributed teeth along the digit in G. bahiensis Ferragut & Carvalho View in CoL ); movable digit with 0–1 tooth (with three teeth in G. bahiensis View in CoL ). Macrosetae of legs II –IV, most often sharp-tipped; in some species, blunt or knobbed. Male ventrianal shield with 3–6 pairs of pre-anal setae; spermadactyl T-shaped.

Remarks. Only one of the 18 valid species presently included in this genus has been reported from Brazil, known only from its original description. Worldwide, species of this genus have been reported from plants and soil.

Kingdom	Animalia
Phylum	Arthropoda
Class	Arachnida
Order	Mesostigmata
Family	Phytoseiidae