Euseius Wainstein 1962
Creators: name: Kar, Anamika
name: Karmakar, Krishna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Euseius

description: Key to the Indian species of Euseius described or reported from India.
1. All the dorsal setae shorter except j1 and Z5 ................................................................ 2
- Besides j1 and Z5 some other setae longer.................................................................. 5
2. All the macrosetae of leg IV spatulated.......................................... E. macrospatulatus (Gupta, 1986)
- All the macrosetae of leg IV not spatulated................................................................. 3
3. Z5 barbed............................................................... E. vikrami Karmakar & Gupta, 2014
- Z5 smooth........................................................................................... 4
4. Spermatheca short, tubular, flared at atrium............................................... E. ovalis (Evans, 1953) - Spermatheca elongated, tubular, not flared at atrium............................... E. sacchari (Ghai & Menon, 1967)
5. Ventrianal shield vase-shaped, no forward migration of JV2 and ZV2 ............................................ 6
- Ventrianal shield pentagonal with forward migration of JV2 and ZV2 ........................................... 10
6. Spermatheca bell-shaped.................................................... E. chikmagalurensis (Gupta, 1986)
- Spermatheca tubular-shaped............................................................................. 7
7. Setae j1, j3 and Z4 same in length, macrosetae present on genu, tibia and tarsus.................................... 8
- Setae j3 longer than j1 and Z4, macrosetae present only on tarsus............................................... 9
8. All the lateral setae long j3 40–45, z2 35–40, z4 45–51, s4 60 –65, Z1 31–32, S2 35, S4 27 –29, S5 36 –40, Z4 31–34, Z5 67–72........................................................................ E. scutalis (Athias-Henriot, 1958).
- All the lateral setae shorter, j3 32–36, z2 15–17, z4 19–24, s4 29 –47, Z1 10–14, S2 11 –14, S4 12 –18, S5 13 –16, Z4 10–13, Z5 56–60........................................................................... E. concordis Chant, 1959
9. Peritreme extended beyond j3, single pair of metapodal shields.......................... E. chitradurgae (Gupta, 1986)
- Peritreme extended up to the base of z2, two pairs of metapodal shields................ E. kalimpongensis (Gupta, 1969c)
10. Dorsum reticulated................................................................................... 11
- Dorsum smooth..................................................................................... 25
11. Seta j1 longer than j3................................................................................. 12
- Seta j1 shorter or equal to j3 ............................................................................ 13
12. Sternal shield longer than wide................................................ E. papayensis (Sadanandan, 2006)
- Sternal shield as long as wide.................................................. E. rhododendronis (Gupta, 1970 a)
13. Seta s4, S4 and S5 serrated.................................................. E. sativum Karmakar & Gupta, 2014
- Seta s4, S4 and S5 not serrated.......................................................................... 14
14. Calyx annulated or constricted.......................................................................... 15
- Calyx not annulated.................................................................................. 18
15. R1 on the dorsal shield......................................... E. bandispermathecae Pramanik & Karmakar, 2016
- R1 off the dorsal shield................................................................................ 16
16. Tip of macrosetae blunt, atrium indistinct.................................. E. astrictus Karmakar & Bhowmik, 2018
- Tip of macrosetae pointed, atrium distinct................................................................. 17
17. Calyx tubular, annulated at the base of vesicle and flared at atrium................................. E. fascae sp. nov.
- Calyx tubular, annulated and narrow at atrium................................. E. prasadi Chant & McMurtry, 2005 c
18. Calyx of spermatheca constricted at base and flared at atrium................................................. 19
- Calyx of spermatheca not constricted at base and not flared at atrium........................................... 22
19. R1 on the dorsal shield................................................................ E. dwakiensis sp. nov.
- R1 off the dorsal shield................................................................................ 20
20. Leg macrosetae with hyaline tip........................................... E. sajnekhalicus Kar & Karmakar, 2021
- Leg macrosetae without hyaline tip...................................................................... 21
21. z4 longer than z2 ....................................................... E. coccosocius (Ghai & Menon, 1967)
– z4 not longer than z2.......................................................... E. finlandicus (Oudemans, 1915)
22. z4 always reaches the base of s4 ...................................................... E. alstoniae (Gupta, 1975)
- z4 never reaches the base of s4 .......................................................................... 23
23. Z5 serrated..................................................... E. arunachalensis Pramanik & Karmakar, 2016
- Z5 smooth.......................................................................................... 24
24. Macrosetae of leg IV capitate, movable digit toothless..................................... E. coccinae Gupta, 1975
- Macrosetae of leg IV not capitate, movable digit with teeth.............. E. sundarbanensis Karmakar & Bhowmik, 2018
25. z2 always reaches the base of z4 ........................................................................ 26
- z2 never reaches the base of z4 .......................................................................... 27
26. All lateral setae long, S4 always reaches base of S5.................................. E. vignus Rishi & Rather, 1983
- All lateral setae not long, S4 never reaches base of S5 ........................... E. mangiferae (Ghai & Menon, 1967)
27. R1 on the dorsal shield............................................................ E. ahaioensis (Gupta, 1992)
- R1 off the dorsal shield................................................................................ 28
28. s4 longer than j1 ........................................................... E. eucalypti (Ghai & Menon, 1967)
- s4 shorter or equal to the length of j1 ..................................................................... 29
29. j1 longer than j3 ..................................................................................... 30
- j1 shorter or equal length of j3 ............................................... E. bambusae (Ghai & Menon, 1967)
30. Ventrianal shield triangular, 60 long, 40 wide at ZV2 ................................ E. neococcineae (Gupta, 1978c).
- Ventrianal shield pentagonal, 100–105 long, 45–50 wide at ZV2................ E. bomdilae Pramanik & Karmakar, 2016
description: Published as part of Kar, Anamika & Karmakar, Krishna, 2021, Description of eleven new species of phytoseiid mites (Acari: Mesostigmata) from Meghalaya state, north eastern India, pp. 301-354 in Zootaxa 5068 (3) on pages 318-319, DOI: 10.11646/zootaxa.5068.3.1, http://zenodo.org/record/5706882