Belongs within: Tetranychinae.
Tetranychus is a genus of spider mites with the duplex setae on tarsus I widely separated and the empodium of the female and empodia III and IV of the male consisting of three pairs of hairs with or without a proximodorsal claw (Baker & Pritchard 1960). In members of the subgenus Armenychus, the striae on the hysterosoma of females are transverse whereas in the subgenus Tetranychus sensu stricto they form a diamond-shaped pattern. Several species are significant horticultural pests such as the two-spotted spider mite T. urticae; this species is extremely polyphagous and feeds on hosts ranging from tomatoes to roses to corn. Conversely, the gorse spider mite T. lintearius has been deliberately introduced to regions of the USA to try and control gorse. The carmine spider mite T. cinnabarinus is a close relative of T. urticae that is notorious for its resistance to various pesticides.
<==Tetranychus Dufour 1832H98 |--T. gloveriNG96 |--T. neocaledonicus (André 1933)NG96, H98 [=Eotetranychus neocaledonicusH98] `--+--+--T. kanzawai Kishida 1927NG96, H98 [incl. T. hydrangeae Pritchard & Baker 1955WL09, H98] | `--+--T. pacificusNG96 | `--T. (Armenychus Wainstein 1960)BT72 | |--T. (*A.) armeniacaBT72 | |--T. (A.) cobrensus Baker & Tuttle 1972BT72 | `--T. (A.) mcdanieli McGregor 1931NG96, BT72 `--T. (Tetranychus)BT72 | i. s.: *T. (T.) lintearius Dufour 1832BT72 [incl. T. russeolusCF77, T. ulmiCF77, T. vestitusCF77] | T. (T.) mexicanusAP80 | T. (T.) nakahariAP80 | T. (T.) yustiAP80 |--T. (T.) ludeni Zacher 1913AP80, FF22, H98 `--+--T. (T.) cinnabarinus (Boisduval 1867)AP80, FF22, H98 (see below for synonymy) `--+--T. (T.) pueraricolaFF22 `--T. (T.) urticae Koch 1836NG96, FF22, BT72 (see below for synonymy) Tetranychus incertae sedis: T. abacaeMF07 T. andrei Baker & Pritchard 1960BP60 T. armipennisW99 T. bastosiS91 T. browningi Baker & Pritchard 1960BP60 T. canadensisNMF07 T. collyerae Manson 1967SL71 T. crataegi Hirst 1920H23 T. cucurbitae Rahman & Sapra 1958RS91, BP60 T. desertorum Banks 1900 [incl. T. opuntiae Banks 1908]H98 T. dianellae Davis 1967H98 T. dugesi Cano & Alsacio 1886Hof07 T. elsae Manson 1967SL71 T. evansi Baker & Pritchard 1960BP60 T. eyrewellensis Manson 1967SL71 T. fraterNMF07 T. gibbus Koch & Berendt 1854S93 T. lambi Pritchard & Baker 1955H98 T. latusCF77 T. lombardinii Baker & Pritchard 1960H98 T. macfarlanei Baker & Pritchard 1960BP60 T. malaysiensisFF22 T. marianae McGregor 1950H98 T. molestissimusAL37 T. moutensis Manson 1970SL71 T. ogmophallosMF07 T. papayaeG01 T. phaselusFF22 T. pierceiHo07 T. pilosusCF77 T. quercivorusNG96 T. rhagodiae Miller 1966H98 T. savenkoaeNG96 T. sayedi Baker & Pritchard 1960BP60 T. schoeneiNMF07 T. sinhaiBY99 T. spinigerus Lucas 1847 (n. d.)E12 [=Metatetranychus spinigerusBP60] T. truncatusNMF07 T. tumidosus Baker & Pritchard 1960BP60 T. turkestani Ugarov & Nikolski 1937KB91 [incl. T. atlanticus McGregor 1941WL09, SL71]
Tetranychus (Tetranychus) cinnabarinus (Boisduval 1867)AP80, FF22, H98 [=Acarus cinnabarinusH98; incl. T. cucurbitacearum Sayed 1946BP60]
Tetranychus (Tetranychus) urticae Koch 1836NG96, FF22, BT72 [incl. T. arabicusK07, Epitetranychus alceae Linnaeus 1758S61, T. altheaeS61, Acarus cucumeris Boisduval 1867H98, T. cucumerisH98, A. rosarum Boisduval 1867H98, T. rosarumH98, A. sambuci Schranck 1781S61, A. telarius Linnaeus 1758 (nom. rej.)H98, Eotetranychus telariusSB63, Tetranychus telariusH98]
*Type species of generic name indicated
References
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