Typhlodromalus longisetatus 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 : 15-17

Typhlodromalus longisetatus Moraes, Zannou & Oliveira , sp. nov. ( Fig. 8 )

DIAGNOSIS — This new species resembles none of the Typhlodromalus species reported in Chant & McMurtry (2005a), because of the subequal lengths of its dorsal shield setae (except J5), most of which are longer than distances between their bases and the bases of the setae immediately behind.

FEMALE — (1 specimen measured).

Dorsum — Dorsal shield sculptured, with roundish elements between j5 and J2, behind s4 and behind Z1 and with some striae mostly along anterolateral margins, without indentation near S5/Z5; 304 long and 208 wide. Idiosomal setal pattern 10A:8B/JV­3: ZV, a characteristic which distinguishes the athiasae species group of Chant & McMurtry (2005a). Setae j1 38, j3 48, j4 29, j5 32, j6 51, J2 50, J5 8, z2 32, z4 48, z5 26, Z1 43, Z4 64, Z5 78, s4 62, S2 66, S4 53, r3 27, R1 29. Setae serrate, except J5, r3 and R1 which are smooth. S5 absent.

Peritreme — Extending anterior to base of j1.

Venter — Distances between St1–St3 61, St2–St2 66, St5–St5 77. Ventrianal shield 96 long, 61 wide at level of Zv2 and 62 wide at level of anus, with a pair of elliptical pores slightly posterior to Jv2. Two pairs of metapodal shields; caudoventral setae smooth and sharp­tipped, except Jv4 and Jv5 which are serrate.

Chelicera — Movable digit 32 long, with 4 teeth; fixed digit 29 long, with 8 teeth and a distinguishable pilus dentilis.

Spermatheca — Calyx slender, flaring slightly distally, 21 long; atrium distinct and slender.

Legs — Macrosetae blunt on tibiae III and IV and knobbed on genua I to IV and tarsus IV; Sge I 22 Sge II 27, Sge III 34, Sti III 24, Sge IV 53, Sti IV 32, St IV 66. Chaetotaxy of genu III: 1­2/1,2/0­1.

MALE — Unknown.

LOCALITY AND TYPE MATERIAL — Holotype female from unknown plant, 400 km N Adomi bridge, Atimpoku, Ghana, 13­XI­1989, J.S. Yaninek, deposited at ESALQ­ USP.

ETYMOLOGY — The epithet longisetatus refers to the relatively long dorsocentral setae of the idiosoma of this new species.

REMARKS — Differently from most of the species in this genus, as reported by Chant & McMurtry (2005a), the margin of the dorsal shield of T. longisetatus sp. nov. does not have an indentation near S5/Z5; and the dorsocentral setae of this species are relatively long. Similarly to this new species, T. athiasae , Typhlodromalus sinespinosus Moraes, Zannou & Oliveira , sp. nov., Typhlodromalus spinosus (Meyer & Rodrigues) and Typhlodromalus tenuicalyx Moraes, Zannou & Oliveira , sp. nov. do not have S5; however, all of those species have dorsal shield setae quite variable in length. In addition, T. sinespinosus and T. spinosus have calyx of spermatheca sacculiform.

Figures

FIGURE 8. Typhlodromalus longisetatus Moraes, Zannou & Oliveira, sp. nov. (female): A. Dorsal shield; B. Ventral surface; C. Spermatheca; D. Chelicera; E. Leg IV.