Tenuipalpus ariauae, Feres, Reinaldo J. F. & Hernandes, Fábio A., 2006

Tenuipalpus ariauae n. sp. Feres & Hernandes ( Figs. 21–30 View FIGURES 21 – 23 View FIGURES 24 – 27 View FIGURES 28 – 30 )

Diagnosis: This species is placed in the caudatus group, anoplus subgroup ( Baker & Tuttle 1987; Meyer 1993), and is similar to T. protectus Meyer (1979) by the pattern of dorsal ornamentation. In T. ariauae , however, only setae sci is developed, the other dorsal setae are minute, except for setae h1, which are very long and whiplike; also differ in the chaetotaxy of legs: T. ariauae : femur IV 1, genu I and II 3, tibia IV 3, tarsi 7(1)­7(1)­3­3; T. protectus : femur IV 2, genua I and II 2, tibia IV 2, tarsi 8(1)­8(1)­5­5. In T. ariauae the short solenidion on 3rd palpal is absent, whereas in T. protectus that solenidion is about half the length of the long solenidion on that segment.

Female: (7 individuals)—Body length 264 (253–275), width 143 (143–154). Reddish colour when alive.

Dorsum ( Fig.21 View FIGURES 21 – 23 ): ve 4 (3–6), sci 21 (20–22), spatulate­serrate, sce 10 (8–12), lanceolate; hysterosomal setae similar to ve and sce; except h2 whiplike; c1 6 (4–7), c3 4 (3–6), d1 4 (4–6), d3 4 (4–6), e1 4 (4–6), e3 3 (3–4), f1 4 (3–5), f2 4 (3–6), h1 4 (3–6), h2 122 (120–131).

Venter ( Fig.22 View FIGURES 21 – 23 ): ventral integument striated; IC3 setae short; IC4 setae long, exceeding the bases of pre­genital setae; genital setae similar to anal setae, shorter than pre­genital setae.

Gnathosoma ( Fig.23 View FIGURES 21 – 23 ): rostrum extending to 2/3 of the length of femur I; palp 3­ segmented, 2nd segment elongate with a long hairy seta dorso­distally; 3rd segment short ( 2 m) and bearing a long solenidion ( 8 m), 4 times the length of segment; rostral shield split 2/3 of its length.

Legs ( Figs.24–27 View FIGURES 24 – 27 ): chaetotaxy (from coxa to tarsus): I 3 (including 1a)­1­4­3­5­7(1), II 2­1 ­4­3­5­7(1), III 1­2 ­2­0­3­3, IV 1­1 ­1­0­3­3. Femur I with 2 serrate dorso­lateral setae and 2 hairy ventral setae; femur II with 3 serrate dorso­lateral setae and 1 hairy ventral seta.

Male: Unknown.

Immatures: larvae, protonymphs and deutonymphs have the full complement of dorsal setae of the adult, viz. 3 prodorsal pairs ( ve, sci and sce) and 10 hysterosomal pairs ( c1, c3, d1, d3, e1, e3, f1, f2, h1 and h2). Central region of idiosoma covered by transverse rows of integument folds.

Deutonymph: (2 individuals) ( Fig. 28 View FIGURES 28 – 30 )—Body length 250 (245–256); width 137 (136–139).

Dorsal setae: ve 2, sci 23, sce 19, c1, c3, d1, d3, e1,, e3, f1 and f2 2, h2 80, h1 3.

Legs: chaetotaxy (from coxa to tarsus): I 3­1 ­4­3­5­7(1), II 2­1 ­4­3­5­7(1), III 1­2 ­2­0­ 3­3, IV 1 ­0­1­0­3­3.

Protonymph: (2 individuals) ( Fig. 29 View FIGURES 28 – 30 )—Body length 192 (190–193); width 117 (111–122).

Dorsal setae: ve 2, sci 22, sce 17, c1 3, c3 2, d1 3, d3 2, e1 3, e3 2, f1 2, f2 2, h1 3, h2 78.

Legs: chaetotaxy (from coxa to tarsus): I 3­1 ­3­1­5­6(1), II 1 ­0­3­1­5­6(1), III 1­2 ­2­0­ 3­3, IV 1 ­0­1­0­3­3.

Larva: (1 individual) ( Fig. 30 View FIGURES 28 – 30 )—Body length 136; width 125.

Dorsal setae: sci serrate 12; sce 11; h2 whiplike 44; other dorsal setae reduced, 2.

Legs: chaetotaxy (from coxa to tarsus): I 1 ­0­3­1­5­5(1), II 1 ­0­2­1­5­5(1), III 0­0­2­0­ 3­3.

Relation to host: inhabits the upper surface of leaves.

Type material: Female holotype, from Qualea grandiflora Mart. (Vochysiaceae) , April 26, 1990, “Sítio” São Luiz ( 20º50’S, 49º18’W), São José do Rio Preto, São Paulo, Brazil, (DZSJRP n.6292).

Paratypes— 3 females, 2 deutonymphs, 2 protonymphs and 1 larva, June 21,1990 and 2 females, July 23, 1990, “Sítio” Santo Antonio ( 20º44’S; 49º21’W); 1 female, July 23, 1990, “Sítio” São Luiz ( 20º50’S, 49º18’W), São José do Rio Preto, São Paulo, Brazil (DZSJRP ns.6292–6300); same host as holotype.

Etymology: ariauae , from ariauá, referring to the indigenous name of the host plant.