Typhlodromus (Anthoseius) elaeis 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 : 38

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

( Fig. 16 )

Diagnosis. This species is distinct by having dorsal shield strongly reticulate, setae Z4 and Z5 serrate and knobbed; setae J2, Z4, Z5, s6, S2, S4 and S5 inserted on small tubercles; sternal shield with 3 pairs of setae; ventrianal shield quadrate, with lateral margins almost straight, as long as wide; calyx of spermatheca cupshaped and very short.

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

Dorsum. Dorsal shield, 268 long and 187 wide, strongly reticulate. With 5 pairs of solenostomes. Setae j1 14, j3 16, j4 13, j5 13, j6 19, J2 22, J5 10, z2 17, z3 18, z4 19, z5 16, Z4 31, Z5 54, s4 19, s6 23, S2 25, S4 23, S5 14, r3 12, R1 16. Setae smooth, except for Z4 and Z5, serrate and knobbed. Setae J 2, Z4, Z5, s6, S2, S4 and S5 inserted on small tubercles .

Peritreme. Extending to level of j1.

Venter. Sternal shield smooth, with 3 pairs of setae (ST4 on separate shields); posterior margin with a bidentate median protuberance; distances between ST1-ST3 52, ST2-ST2 50. Genital shield smooth; distance between ST5-ST5 56. Ventrianal shield pentagonal, mostly smooth, with some striae around anus, with anterior margin straight, 95 long, 96 wide at level of ZV2, 91 wide at level of anus, with 4 pairs of pre-anal setae (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 23 long; fixed digit 21 long; position did not allow counting number of teeth on either digit.

Spermatheca. Calyx cup-shaped, 3 long; atrium small, incorporated to calyx.

Legs. Macrosetae knobbed: Sge III 8, Sge IV 12, St IV 22. Tibia III as well as genu, tibia and tarsus IV have 2, 1, 3 and 1 knobbed setae, respectively, in addition to macrosetae. Chaetotaxy: genu II: 2-2/0, 2/0- 1; genu III: 1-2/1, 2/0-1.

Locality and type material. Holotype female from Elaeis guineensis , 27 km SW Ngoulemakong, Cameroon, 6-II-1991, L. Louis.

Etymology. The name elaeis refers to the genus of the plant from which the holotype of this species was collected.

Remarks. Typhlodromus (A.) crassus differs from this species by having seta Z4 sharp-tipped, ventrianal shield pentagonal, longer than wide and calyx of the spermatheca 3 times longer than in the new species.

Figures

FIGURE 16. Typhlodromus (Anthoseius) elaeis Zannou, Moraes & Oliveira, n. sp. (female): A. Dorsal shield; B. Ventral surface; C. Spermatheca; D. Leg IV.