Typhlodromus (Anthoseius) De Leon, 1959

Molla, Md. Iftiar Hossain, Kar, Anamika, Bala, Suvash Chandra & Kar, Krishna Karma-, 2021, Description of four new species of phytoseiid mites belonging to the genus Typhlodromus (Anthoseius) De Leon from West Bengal, Zootaxa 4949 (3), pp. 541-556 : 542-543

Typhlodromus (Anthoseius) De Leon, 1959

Type species: Anthoseius hebetis De Leon, 1959: 258 .

Key to the species of Typhlodromus (Anthoseius) described or reported from West Bengal, India based on Hernandes et al. (2012).

1. Ventrianal shield with three pairs of pre-anal setae........................................................... 2

- Ventrianal shield with four pairs of pre-anal setae........................................................... 3

2. Dorsal shield slightly reticulated with a deep incision at the level of R1; fixed digit of chelicera with four teeth.......................................................................................... T. majumderi Gupta 1986

- Lateral margin of dorsal shield strongly striated with a deep incision at the lateral margin of waist region; fixed digit of chelicera with seven teeth................................................... T. heliotropium Karmakar & Bhowmik, 2018

3. All dorsal shield setae bulbous........................................................... T. bulbosis sp. nov.

- All dorsal shield setae not bulbous........................................................................ 4

4. All the dorsal shield setae serrated....................................................................... 5

- All the dorsal shield setae not serrated.................................................................... 6

5. Sternal shield with three pairs of setae................................................... T. bengalensis sp. nov. - Sternal shield with two pairs of setae...................................................... T. adhatoda sp. nov.

6. All dorsolateral setae serrated and dorsocentral setae smooth............... T. carambolae Karmakar & Bhowmik, 2018

- All dorsal setae smooth or only Z4 and Z5 serrated.......................................................... 7

7. Leg IV with three macrosetae........................................................................... 8

- Leg IV with single macroseta........................................................................... 9

8. Setae j3, z3, s4, s6 and Z5 elongated, setae z2, z4 and S5 short, setae Z4 and Z5 smooth, pointed....... T. pruni Gupta, 1970

- Setae j3, z3, s4, s6 and Z5 not elongated, setae z2, z4 and S5 short, setae Z4 and Z5 serrated......................... 10

9. Setae S2 longer, more than 30 µm ....................................................... T. gopali Gupta, 1969

- Seta S2 shorter, less than 30 µm ......................................................................... 11

10. Seta S5 longer, posterior margin of sternal shield with deep cleft............................. T. persicus Gupta, 1992

- Seta S5 shorter, posterior margin of sternal shield concave............................ T. darjeelingensis Gupta, 1986

11. Setae Z4 and Z5 smooth, macrosetae on Leg IV pointed.................................. T. communis Gupta, 1978

- Setae Z4 and Z5 serrated, macrosetae on Leg IV bulbous..................................................... 12

12. Seta StIV, long 21–33 µm ........................................................... T. fleschneri Chant, 1960

- StIV short, 15–20 µm ................................................................................. 13

13. Seta j5 long 18–22 µm;, movable digit with three teeth....................................... T. sagaricus sp. nov.

- Seta j5 short 13–20 µm;, movable digit without teeth........................................ T. homalii Gupta 1970