Typhlodromus (Anthoseius) vescus Van der Merwe

Ueckermann, Edward A., Zannou, Ignace D., De Moraes, Gilberto J., Oliveira, Anibal R., Hanna, Rachid & Yaninek, John S., 2008, Phytoseiid mites of the tribe Typhlodromini (Acari: Phytoseiidae) from sub-Saharan Africa, Zootaxa 1901 (1), pp. 1-122 : 102-103

Typhlodromus (Anthoseius) vescus Van der Merwe

( Fig. 51 )

Typhlodromus (Anthoseius) vescus Van der Merwe, 1968: 48 ; Moraes et al., 2004: 357. Typhlodromus (Anthoseius) anitrae Schultz, 1973: 98 (synonym according to Ueckermann & Loots, 1988). Typhlodromus (Anthoseius) meyerae Schultz, 1973: 101 (synonym according to Ueckermann & Loots, 1988). Typhlodromus (Typhlodromus) vescus, Tseng, 1983: 70 .

Amblydromella vesca, Moraes et al., 1986: 178 .

Amblydromella (Amblydromella) vesca, Denmark & Welbourn, 2002: 307 .

FEMALE. ( Specimens measured— South Africa: holotype, 3 paratype and 4 additional specimens). Idiosomal setal pattern 12A:8A/JV:ZV .

Dorsum. Dorsal shield 331 (309–343) [341] long and 186 (160–200) [187] wide; lightly reticulate. With 5 pairs of solenostomes, not all indicated in fig. 51 A. Setae j1 19 (17–21) [20], j3 23 (20–25) [22], j4 15 (13–17) [14], j5 15 (14–16) [15], j6 19 (17–22) [17], J2 23 (19–26) [22], J5 10 (9–12) [9], z2 18 (16–19) [19], z3 21 (19–22) [21], z4 21 (19–22) [22], z5 18 (17–19) [18], Z4 34 (25–39) [38], Z5 58 (51–64) [64], s4 23 (20–25) [25], s6 26 (23–28) [26], S2 29 (23–33) [29], S4 31 (24–38) [35], S5 12 (10–14) [10], r3 21 (18–23) [20], R1 20 (17–23) [22]. Setae smooth, except Z4, serrate; and Z5, serrate and knobbed .

Peritreme. Extending to level of j1.

Venter. Sternal shield smooth, with 3 pairs of setae; posterior margin with a median lobe; distances between ST1–ST3 57 (54–60) [58], ST2–ST2 57 (55–58) [56]. Genital shield smooth; distance between ST5– ST5 61 (55–66) [59]. Ventrianal shield smooth, pentagonal, with anterior margin convex, 111 (101–119) [114] long, 91 (81–96) [90] wide at level of ZV2, 78 (69–84) [78] wide at level of anus, with 4 pairs of pre-anal setae (seta JV3 present); elliptical pre-anal pores posteromesad of JV2. With 2 pairs of metapodal shields. Caudoventral setae smooth and sharp-tipped, except JV5, knobbed.

Chelicera. Movable digit 26 (25–28) [28] long, with 3 teeth; fixed digit 25 (23–27) [24] long, with 5 teeth.

Spermatheca. Calyx a broad tube, 12 (10–14) [14] long; atrium small, incorporated in calyx.

Legs. Macrosetae knobbed; Sge IV 17 (14–21) [16], Sti IV 20 (18–22) [19], St IV 29 (25–32) [32]. Chaetotaxy: genu II: 2-2/0, 2/0-1; genu III: 1-2/1, 2/0-1.

MALE. (Specimen measured— South Africa: 1)

Dorsum. Dorsal shield pattern and setae as in female, 252 long and 164 wide. Setae j1 17, j3 19, j4 14, j5 13, j6 16, J2 20, J5 10, z2 14, z3 17, z4 17, z5 15, Z4 27, Z5 38, s4 20, s6 21, S2 22, S4 23, S5 10, r3 17, R1 16.

Peritreme. Extending to level of j1.

Venter. Ventrianal shield subtriangular, striate, fused with peritrematal shields, 96 long, 143 wide at the anterior corners; with 4 pairs of pre-anal setae and no distinguishable lyrifissures; elliptical pre-anal pores posteromesad of JV2. Caudoventral setae smooth and sharp-tipped.

Spermatodactyl. Shaft straight for most of its length, bent distally, 19 long.

Legs. Macrosetae knobbed; Sge IV 14, Sti IV 17, St IV 24. Chaetotaxy of genua II and III as in female.

Specimens examined. South Africa: Holotype female and 2 paratype females, Mpumalanga Province, Nelspruit, on Mangifera indica , 4-IV-1955, P.A.J. Ryke; 1 paratype female, Mpumalanga Province, Nelspruit, on an unidentified plant, 4-IV-1955, P.A.J. Ryke; 1 female, Mpumalanga Province, Barberton district, on Dalbergia armata , 24-III-1976, M.K.P. Smith Meyer; 1 female, Eastern Cape Province, Fort Grey Forestry near East London , on Hibiscus pedunculatus , 2-XII-1977, M.K.P. Smith Meyer; 1 female and 1 male, Mpumalanga Province, Blyde River Canyon, on Heteropyxis natalensis , 23-II-1978, E. van den Berg; 1 female, Mpumalanga Province, Institute for Tropical and Subtropical Crops, Nelspruit, on Pomcirus trifoliata , 29-III-1979, J. Botha.

World distribution. South Africa.

Figures

FIGURE 51. Typhlodromus (Anthoseius) vescus Van der Merwe: Female—A. Dorsal shield; B. Ventral surface; C. Chelicera; D. Spermatheca; E. Leg IV; Male— F. Spermatodactyl; G. Ventrianal shield.