Euseius oligodous Moraes, Zannou & Oliveira

De Moraes, G. J., Zannou, I. D., Oliveira, A. R., Yaninek, J. S. & Hanna, R., 2006, Phytoseiid mites of the subtribes Typhlodromalina and Euseiina (Acari: Phytoseiidae: Euseiini) from sub­Saharan Africa, Zootaxa 1114, pp. 1-52 : 46-48

Euseius oligodous Moraes, Zannou & Oliveira , sp. nov. ( Fig. 23 )

DIAGNOSIS — This species is distinct by a combination of the following characteristics: long peritreme (reaching base of j 1), reticulate dorsal shield, Jv 1 inserted near anterior margin of ventrianal shield and distinctly knobbed macrosetae on legs.

FEMALE — (2 specimens measured).

Dorsum — Dorsal shield reticulate, 335 (334–337) long and 225 wide. Setae j 1 27 (26– 28), j 3 14, j 4 11, j 5 12 (11–12), j 6 12 (11–12), J 2 14, J 5 9 (8–9), z 2 16 (15–17), z 4 14, z 5 11, Z 1 14 (13–14), Z 4 15 (14–15), Z 5 57 (55–58), s 4 18 (17–18), S 2 16, S 4 20 (19–20), S 5 18 (17–19), r 3 16 (15–16), R 1 14 (13–14). All setae smooth, except Z 5 which is lightly serrate.

Peritreme — Extending to level of j 1.

Venter — Distances between St 1 –St 3 55 (54–55), St 2 –St 2 68 (67–68), St 5 –St 5 75. Ventrianal shield 105 long, 58 wide at level of Zv 2 and 67 (65–69) wide at level of anus, with a pair of elliptical pores slightly posteromesad of Jv 2. Two pairs of metapodal shields; caudoventral setae smooth and sharp­tipped.

Chelicera — Movable digit 27 (26–27) long, with 1 small tooth; fixed digit 25 long, with 4 small teeth and a discernible pilus dentilis.

Spermatheca — Calyx funnel­shaped, 15 (14–15) long; atrium elongate.

Legs — Macrosetae knobbed; Sge II 19, Sge III 26 (25–26), Sti III 23 (22–23), Sge IV 38, Sti IV 31 (30–31), St IV 44 (43–44). Chaetotaxy of genu III: 1­2 / 1,2 / 0­1.

MALE — Unknown.

LOCALITY AND TYPE MATERIAL — Holotype female and 1 paratype female from Anisophyllea boehmii , 30 km S Kasama, Zambia, 16 ­VI­ 1992, A. Onzo, deposited at ESALQ­USP.

ETYMOLOGY — The epithet oligodous refers to the presence of few teeth on the fixed cheliceral digit of this new species.

REMARKS — Euseius parcidentatus is similar to this new species, but it differs by having shorter dorsal shield setae, S 4 inserted very close to dorsal shield margin, longer and strongly knobbed macrosetae on legs III and IV and shorter atrium of spermatheca.

Figures

FIGURE 23. Euseius oligodous Moraes, Zannou & Oliveira, sp. nov. (female): A. Dorsal shield; B. Ventral surface; C. Spermatheca; D. Chelicera; E. Leg IV.