Typhlodromus (Anthoseius) subtilis Zannou, Moraes & Oliveira, 2008

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 : 93-95

Typhlodromus (Anthoseius) subtilis Zannou, Moraes & Oliveira , n. sp.

( Fig. 46 )

Diagnosis. This species is characterized by having dorsal shield with lateral striae, light reticulations between j6 and Z4 and transversal striae posteriorly to Z4; dorsal setae setiform, smooth and sharp-tipped, except Z5, serrate; Z4 shorter than distance between its base and that of S5; S4 shorter than the distance between its base an that of S5; r3 and R1 inserted on integument; sternal shield with 3 pairs of setae and a median lobe on posterior margin; distal third of calyx of spermatheca bell-shaped proximal two-thirds slender; atrium bulbous; a single and slightly knobbed macroseta on basitarsus of leg IV.

FEMALE. (8 specimens measured). Idiosomal setal pattern: 12A:8A/JV: ZV.

Dorsum. Dorsal shield 322 (318-330) long and 170 (165-174) wide, with lateral striae, light reticulations between j6 and Z4 and transversal striae posteriorly to Z4. With 5 pairs of solenostomes. Setae j1 19 (18–22), j3 26 (24–27), j4 17 (16–18), j5 16 (15–18), j6 20 (20–21), J2 22 (21–25), J5 11 (10–12), z2 21 (20–22), z3 26 (25–28), z4 26 (25–28), z5 18 (17–20), Z4 30 (28–33), Z5 44 (41–48), s4 29 (26–31), s6 30 (28–32), S2 35 (33–37), S4 30 (28–33), S5 18 (16–19), r3 29 (27–31), R1 25 (24–27). Setae smooth and sharp-tipped, except Z5, serrate .

Peritreme. Extending to level between j1 and j3.

Venter. Sternal shield smooth, with 3 pairs of setae; posterior margin with lightly sclerotized median lobe; distances between ST1-ST3 70 (68–73), ST2-ST2 59 (57–61). Genital shield smooth; distance between ST5- ST5 54 (53–56). Ventrianal shield smooth, pentagonal, with anterior margin slightly concave, 102 (100–105) long, 70 (68–76) wide at level of ZV2, 64 (62–68) wide at level of anus, with 4 pairs of pre-anal setae; round pre-anal pores posterior to and transversally in line with JV2. With 2 pairs of metapodal shields. Caudoventral setae smooth and sharp-tipped.

Chelicera. Movable digit 24 (23–24) long, with 3 teeth; fixed digit 24 (23–24) long, with 6 – 7 teeth.

Spermatheca. Distal third of calyx bell-shaped proximal two-thirds slender, 28 (27–28) long; atrium bulbous.

Legs. Macroseta slightly knobbed: St IV 39 (35–42). Chaetotaxy: genu II: 2-2/1, 2/0-1; genu III: 1-2/1, 2/ 0-1.

MALE. (1 specimen measured) .

Dorsum. Dorsal shield pattern and setae as in female, 235 long and 140 wide. Setae j1 16, j3 25, j4 18, j5 18, j6 19, J2 19, J5 9, z2 21, z3 25, z4 23, z5 17, Z4 23, Z5 28, s4 29, s6 26, S2, 27, S4 22, S5 15, r3 28, R1 23. Setae smooth, except for Z5 serrate .

Peritreme. Extending to level between j3 and z2.

Venter. Ventrianal shield subtriangular, faintly reticulate anteriorly to ZV2, free from peritrematal shields, 90 long, 115 wide at anterior corners; with 4 pairs of pre-anal setae and 2 distinguishable pairs of lyrifissures (1 anterior to JV1 and 1 lateral, almost in transversal line with JV1); round pre-anal pores posteromesad of JV2. Caudoventral setae smooth and sharp-tipped.

Spermatodactyl. Shaft 17 long (position renders drawing impossible).

Legs. Macroseta slightly knobbed, St IV 35. Chaetotaxy of genua II and III as in female.

Locality and type material. Holotype, 7 paratype females and 1 allotype male from Protea gaguedi , 150 km SW Mpika , Zambia, 17-VI-1992, J.S. Yaninek, deposited at ESALQ-USP.

Etymology. The name subtilis refers to the slender major portion of the calyx of the spermatheca of this species.

Remarks. Typhlodromus (A.) astibus Ueckermann & Loots differs from this species by having Z4 longer than the distance between its base and that of S5, S4 longer than the distance between its base and that of S5, R1 inserted on dorsal shield. Typhlodromus (A.) matthyssei Ueckermann & Loots differs from this new species by having most dorsal setae much shorter, Z4 and S5 serrate, Z5 knobbed, and by lacking macrosetae on legs. Typhlodromus (A.) celastrus Ueckermann & Loots and T. (A.) gardeniae Schultz differ by having setae Z5 and JV5 knobbed, calyx of spermatheca tubular, without a distinct constriction, atrium not bulbous.

Figures

FIGURE 46. Typhlodromus (Anthoseius) subtilis Zannou, Moraes & Oliveira, n. sp.: Female—A. Dorsal shield; B. Ventral surface; C. Chelicera; D. Spermatheca; E. Leg IV; Male—F. Ventrianal shield.