Pulaeus quadrisolenidius, Castro, Tatiane Marie Martins Gomes De & Heyer, Jacob Den, 2009

Castro, Tatiane Marie Martins Gomes De & Heyer, Jacob Den, 2009, A revision of the genus Pulaeus Den Heyer, with descriptions of a new genus and four new Brazilian species (Acari: Prostigmata: Cunaxidae), Zootaxa 2141, pp. 20-36 : 25

Pulaeus quadrisolenidius sp. nov.

( Figs. 3–4 )

Diagnosis. This species resembles P. franciscae , but differs from the latter by the presence of 4 solenidia on genua I instead of 3.

Female ( Figs. 3–4 ) (n=13). Idiosoma: length 252(237–287) and width 176(150–212).

Dorsum ( Fig. 3 A). Dorsal shield slightly punctated with sensillae (vi and sce) setose; dimensions: vi 90 (80–107), ve 23(20–27), sci 16(12–22), sce 78(67–87), c1 12(10–15), c2 12(10–12), d1 13(10–17) and e1 15 (12–17). Posteriad to the dorsal idiosomal shield one pair of tiny platelets occur that carring setae f1 19(15–22) and f2 11(10–12) each. Setae h1 22(17–25) and h2 13 occur on the integument.

Ven t er ( Fig. 3 B). The venter resembles that of P. myrtaceus sp. nov., but with 7 or 8 hysterogastral setae.

Gnathosoma ( Fig. 3 C–D). Hypostome 117(100–127) long, bearing 4 pairs of hg setae [hg1 11(10–15), hg2 13(10–17), hg3 35(30–37) and hg4 10(7–12)] and 2 pairs of adoral setae. Three- jointed palp, 74(62–87) long. Trochanter without setae; femorogenu, 6 sts; tibiotarsus, 4 sts, 1 asl terminal, 1 bladder-like apophysis and 1 ventral pointed process. Chelicera 116(105–120) long with cheliceral seta 7.

Legs ( Fig. 4 A–D). Length of legs: I 165(145–197), II 140(120–170), III 158(142–195), IV 171(155–202); length of tarsi: I 62 (55–72), II 47 (40–60), III 44 (37–50), IV 45 (37–52). The leg chaetotaxy is as follows: coxae I—IV, 1 peg, 3 sts—3 sts—3 sts—2 sts; trochanters I—IV, 1 sts—1 sts—2 sts—1sts; basifemora I—IV, 4 sts—6 sts—3 sts—2 sts; telofemora I—IV, 5 sts—5 sts—1 ms, 3 sts—1 ms, 2 sts; genua I—IV, 3 asl, {1 asl, 1 sts}, 4 sts—2 asl, 5 sts—1 asl, 5 sts—1 asl, 5 sts; tibiae I—IV, 1 asl, 1 bsl, 5 sts—1 bsl, 5 sts—1 bsl, 5 sts—1 T, 4 sts; tarsi I—IV, 1 asl, 3 bsl, 1 dep + peo, 1 dtsl, 2 tsl, 22 sts—1 bsl, 1 dtsl, 1 tsl, 19 sts—1tsl, 16 sts—17 sts.

Male ( Fig. 4 ). (n=3). Dimensions. Idiosoma: length 191(175–212) and width 143(135–165).

Dorsum ( Fig. 4 E). The dorsum is similar to that of the female; dimensions: vi 85 (77–90), ve 25(22–27), sci 16(15–17), sce 75(72–80), c1 12, c2 12(10–12), d1 12 and e1 12 (12–15). Posteriad to the dorsal idiosomal shield one pair of tiny platelets occur carring setae f1 15 and f2 8(7–10) each. Setae h1 17 and h2 13 occur on the integument.

Ven ter ( Fig. 4 F). Propodosomal coxal plates fused medially. One pair of paracoxal setae occurs on the coxal region IV. The integument bears 1 pair of propodogastral setae and 3 pairs of hysterogastral setae. Paragenital setae are not present. The genital valves are smaller than those of the females, each bearing 4 gsetae.

Gnathosoma . The gnathosoma is similar to that of the female. Hypostome 105(100–112) long with 4 pairs of hg -setae [hg1 13(12–15), hg2 15(15–17), hg3 38(35–42) and hg4 10] and 2 pairs of adoral setae. Threejointed palp, 74(70–77) long. Chelicera 106(100–110) long with cheliceral setae 10.

Legs. Length of legs: I 153(145–160), II 128(125–137), III 142(135–150), IV 152(145–157); length of tarsi: I 57 (55–60), II 45 (42–47), III 39 (37–42), IV 41 (40–45). The leg chaetotaxy differs from that of female as follows: genua I—IV, 2 asl, 1 bsl, {1 asl, 1 sts}, 4 sts—1 asl, 1 bsl, 5 sts—1 asl, 5 sts—1 asl, 5 sts.

Type material. Holotype female, from leaf litter of Euterpe edulis Mart. (Arecaceae) , 11.VII.2000, Pariquera-Açu, A.R. Oliveira.

Paratypes. Cananéia: 1 female, from leaf litter A. aculeatissimum , 18.I.2000, A.R. Oliveira; 1 male, from leaf litter of E. edulis , 12.VII.2000, A.R. Oliveira; 1 female, from leaf litter of Syagrus romanzoffiana (Cham.) (Euphorbiaceae) , 18.I.00, A.R. Oliveira.

Pariquera-Açu: 1 female, from leaf litter of of S. romanzoffiana , 11.VII.2000, A.R. Oliveira; 1 male, from roots of E. edulis , 18.IV.2000, A.R. Oliveira; 1 male, from roots of E. edulis , 11.VII.2001, A.R. Oliveira.

Pirassununga: 3 females, from soil, 27.VII.2000, A.R. Oliveira.

São Carlos: 2 females, from soil, 25.VII.2000, A.R. Oliveira.

São Pedro: 4 females, from leaf litter of Syagrus oleraceae (Mart.) Becc. (Arecaceae) , 10.VIII.2000, A.R. Oliveira.

Etymology. The species designation refers to the presence of four solenidia on genu I.

Figures

FIGURE 3. Pulaeus quadrisolenidius sp. n. Female. Dorsum (A), venter (B), hypostome (C), palp (D), chelicera (E).

FIGURE 4. Pulaeus quadrisolenidius sp. n. Female. Leg I (A), leg II (B), leg III (C), leg IV (D). Male. Dorsum (E), venter (F).