Typhlodromus (Anthoseius) grewiae 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 : 48-50

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

( Fig. 23 )

Diagnosis. This species is characterized by having dorsal shield reticulate; dorsal shield setae lanceolate, strongly serrate and inserted on small tubercles, except J5, smooth, setiform and sharp-tipped; ventrianal shield smooth, subtriangular, with 3 pairs of pre-anal setae (JV3 absent); caudoventral seta JV5 lanceolate and serrate; calyx of spermatheca saccular; a single and knobbed macroseta, on tarsus of leg IV.

FEMALE. (1 specimen measured). Idiosomal setal pattern: 12A:8A/JV-3:ZV.

Dorsum. Dorsal shield, 298 long and 179 wide, rugose. With 5 pairs of solenostomes. Setae j1 (not in a good position to be measured), j3 16, j4 16, j5 16, j6 19, J2 22, J5 10, z2 14, z3 14, z4 18, z5 18, Z4 29, Z5 35, s4 19, s6 22, S2 24, S4 27, S5 22, r3 16, R1 16. Setae lanceolate, strongly serrate and inserted on small tuber- cles, except J5, smooth, setiform and sharp-tipped .

Peritreme. Extending to level of j1.

Venter. Sternal shield too lightly sclerotized to be illustrated; distances between ST1-ST3 58, ST2-ST2 61. Genital shield smooth; distance between ST5-ST5 53. Ventrianal shield smooth, subtriangular, with anterior margin convex, 99 long, 90 wide at level of ZV2, with 3 pairs of pre-anal setae (JV3 absent); round pre-anal pores posteromesad of JV2. With 2 pairs of metapodal shields. Caudoventral setae smooth, setiform and sharp-tipped except JV5, lanceolate and serrate.

Chelicera. Movable digit 25 long, with 2 teeth; fixed digit 23 long, apparently with 3 – 4 teeth.

Spermatheca. Calyx saccular, slightly constrict before flaring towards vesicle, 14 long; atrium very small and nodular.

Legs. Macroseta knobbed: St IV 18 plus an additional knob seta. With the following numbers of knobbed setae, in addition to the macroseta on tarsus IV: tarsus IV one; genu IV 4; genu III, 4; tibia IV 3; tibia III, 3, tarsus III, 2; tibia IV, 2.Chaetotaxy: genu II: 2-2/0, 2/0- 1; genu III: 1-2/1, 2/0-1.

Locality and type material. Holotype female from Grewia sp. , 25 km S. Malindi, Coastal Province , Kenya, 1-XII-1989, J.S. Yaninek, deposited at ESALQ-USP.

Etymology. The name grewiae refers to the genus of the plant on which the type of this species was collected.

Remarks. Typhlodromus (A.) combretum , T. (A.) michaeli , T. (A.) coryphus Wu, T. (A.) machaon (Wainstein) and T. (A.) serratus (Chaudhri) differ from this species by having 4 pairs of pre-anal setae (JV3 present). Typhlodromus (A.) hartlandrowei Evans and T. (A.) transvaalensis Nesbitt differ from the new species by having most of the dorsal setae longer than in the new species, knobbed and not lanceolate.

Figures

FIGURE 23. Typhlodromus (Anthoseius) grewiae Zannou, Moraes & Oliveira, n. sp. (female): A. Dorsal shield; B. Ventral surface; C. Spermatheca; D. Leg IV.