Tetranychinae
Creators: name: Marić, Ivana
name: Marčić, Dejan
name: Petanović, Radmila
name: Auger, Philippe
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Tetranychidae

description: Tetranychinae
11. Empodium claw-like, small; duplex setae not closely associated, dorsohysterosomal setae nearly as long as intervals between them.......................................... E. buxi — Empodium claw-like or spit distally, 2 pairs of duplexes present on tarsus I, f 1 setae in normal position..................................................................... 12
12. 2 pairs of ventrocaudal (para-anal) setae........................................... 13
— 1 pair of ventrocaudal setae....................................................... 31
13. Empodium claw-like............................................................ 14
— Empodium split into up to 3 pairs of hairs.......................................... 18
14. Empodium a single claw-like structure, with proximoventral hairs....................15 — Empodium split into 2 claw-like structures..........................................16
15. f 2 and h 1 setae similar in length............................................... P. citri
— f 2 setae about 1.5 longer than h 1 setae.......................................... P. ulmi
16. Dorsocentral hysterosomal setae far longer than intervals between two consecutive rows, reaching past second seta caudad......................................... S ... parasemus
— Dorsocentral hysterosomal setae about as long or slightly longer than intervals between two consecutive setae................................................................... 17
17. Male aedeagus without knob, needle like, sinuous, tapering distally......... S ... garmani
— Male aedeagus up turned, knob with both projection acute, posterior one well developed, elongate, tapering, forming an angle about 45° with the shaft axis............. S ... schizopus
18. Empodium split distally, dorsal body setae set on strong tubercles.................... 19 — Empodium split near the middle................................................... 20
19. Palptibial claw longer than palptarsus, stylophore rounded anteriorly............ N .. rubi
— Palptibial claw shorter than palptarsus, stylophore notched anteriorly......... N .. rubicola
20. Male aedeagus obviously downcurved posteriorly.................................. 21
— Male aedeagus long, tapering, straight or sinuous....................................24
21. Aedeageal knob present, anterior and posterior projections acute, male spinneret tiny.....
.......................................................................... E. rubiphilus
— Aedeagus sigmoid, without knob.................................................. 22
22. Aedeagus tip upturned, not tapering........................................ E .. fraxini
— Aedeagus tip not upturned and acute............................................... 23
23. Peritreme straight distally, male spinneret tiny.............................. E. deflexus
— Peritreme hooked distally, male spinneret well developed..................... E ... clitus
24. Distal end of peritreme branched or anastomosing........................... E .. populi
— Peritremal end straight or bent..................................................... 25
25. Peritreme straight, bulbous distally........................................ E .. carpini
— Peritreme bent distally or U-shaped................................................ 26
26. Aedeagus long, slender, nearly straight.................................. E ... tiliarium
— Aedeagus sinuous................................................................ 27
27. Aedeagus slightly sinuous, stout, tapering gradually to tube-like tip, down directed distally E. weldoni
— Aedeagus long, slender, obvious undulation present................................. 28
28. Distal part of peritreme strongly hooked with several compartments, female spinneret about
2.5 as long as wide........................................................... E. uncatus
— Distal part of peritreme bent posteriorly............................................ 29
29. Aedeagus with last straight portion equal to 0.3 time the total length............ E .. pruni
— Aedeagus with last straight portion more than 0.4 time the total length.................30
30. Female palptarsal terminal sensillum less than 3 times as long as broad.......... E. aceri
— Female palptarsal terminal sensillum 3 times or more as long as broad........... E. coryli
31. Empodium claw like with proximoventral hairs, dorsal setae longer than intervals, 7 and
5 tactile setae present on tarsi I and II, respectively, live females dark red to reddish-brown in color; male aedeagus bent ventrad at a right angle tapering gradually to a slender tip......... .......................................................................... O. ununguis *
— Empodium split distally...........................................................32
32. Peritreme bent distally, hook-like................................................. 33
— Peritremal distal enlargement anastomosed............................... A .. viennensis
33. Female tarsus I with proximal pair of duplex setae in line with all 4 proximal tactile setae;
knob of male aedeagus with both projections acute, anterior projection small, posterior one well developed, dorsocaudally directed, acute, deflexed distally................ T .... evansi.
— Female tarsus I with proximal pair of duplex setae distad the four proximal tactile setae...
....................................................................................34
34. Dorsal margin of the knob angulate, knob large.......................... T ... turkestani
— Dorsal margin of the knob rounded, knob small............................. T ... urticae
* Oligonychus brevipodus was not included in the key because there is no reliable data available to separate this species from other members belonging to the genus Oligonychus. As proposed
by Pritchard & Baker (1955) topotype material should be collected to redescribe this species.
description: Published as part of Marić, Ivana, Marčić, Dejan, Petanović, Radmila & Auger, Philippe, 2018, Biodiversity of spider mites (Acari: Tetranychidae) in Serbia: a review, new records and key to all known species, pp. 3-14 in Acarologia 58 (1) on pages 11-13, DOI: 10.24349/acarologia/20184223, http://zenodo.org/record/4502252