Typhloseiopsis dorsoreticulatus, Lofego & Demite & Feres, 2011

Lofego, Antonio C., Demite, Peterson R. & Feres, Reinaldo J. F., 2011, Two new species of phytoseiid mites (Acari: Phytoseiidae) from the State of São Paulo, Brazil, Journal of Natural History 45 (37 - 38), pp. 2347-2354 : 2350-2353

Typhloseiopsis dorsoreticulatus sp. nov.

( Figure 2 )

Diagnosis

This new species and Typhloseiopsis funiculatus DeLeon, 1965 are unique in the genus by having the ventrianal shield completely formed. However, T. dorsoreticulatus differs from T. funiculatus by having the dorsal shield completely reticulated and setae Z4 and Z5 strongly serrate, whereas T. funiculatus has a smooth dorsal shield for the most part and Z4 and Z5 also smooth.

Specimens examined

Holotype female, from Piper sp. ( Piperaceae ) leaves, 24 July 2008, Serra do Japí, Jundiaí, State of São Paulo, Brazil, 23 ◦ 11 ′ S, 46 ◦ 52 ′ W, P.R. Demite and J.C. de Souza colls. Paratypes: two females and one male, from same host, date and collectors as the holotype; one female and one male, from Croton floribundus Spreng. (Euphorbiaceae) leaves, 12 September 2008, V. de O. Lima and C. Vieira colls. All paratypes from same locality as the holotype.

Description of female (four specimens measured)

Dorsum ( Figure 2A ). Dorsal shield distinctly reticulated; with seven pairs of lyrifissures and six pairs of pores; 317 327 (317–340) long and 182 189 (182–200) wide at s4 level; j1 17 18 (17–20), j3 15 17 (15–18), j4 11 12 (11–14), j5 11 12 (11–13), j6 12 14 (12–15), J2 16 18 (16–19), J5 11 12 (11–12), z2 14 15 (14–16), z3 12 14 (12–16), z4 15 16 (15–17), z5 12 14 (12–15), Z4 21 23 (21–24), Z5 54 57 (54–61), s4 17 19 (17–20), s6 16 18 (16–20), S5 14 15 (14–15), r3 15 16 (15–17), R1 15 16 (15–17). All setae smooth, except J5, Z4 and Z5, which are serrated .

Venter ( Figure 2B ). Sternal and genital shields smooth, distance between st1–st3 58 59 (57–60), st2–st2 61 60 (59–61), st5–st5 59 61 (59–64). Ventrianal shield smooth, 106 111 (106–117) long, 92 94 (89–100) wide at level of ZV2 and 90 94 (90–98) wide at the anus level; JV5 31 34 (31–35).

Peritreme. Extending to the level of j1.

Chelicera ( Figure 2C ). Movable cheliceral digit 22 22 (21–23) long, with two teeth. Fixed cheliceral digit 23 24 (23–25) long, with four teeth.

Spermatheca ( Figure 2D ). Calyx tubular, short, 10 10 (9–10). Atrium nodular.

Legs ( Figure 2E ). Only legs III and IV with macrosetae: SgeIII 11 13 (11–14), Sge IV 12 15 (12–17), StiIV 15 14 (13–15), StIV 30 31 (28–35). All macrosetae knobbed. Chaetotaxy: genu II 2-2 / 0-2 / 0-1; genu III 1-2 / 1-2 / 0-1.

Description of male (two specimens measured)

Dorsum. Dorsal shield distinctly reticulated, 250–260 long and 150–170 wide; j1 12– 15, j3 15, j4 11, j5 10–11, j6 10–11, J2 14–16, J5 10–11, z2 11–12, z3 11–13, z4 12–15, z5 10–13, Z4 16–19, Z5 39–40, s4 16, s6 16 –17, S5 13 – 15, r3 14–15, R1 15, All setae smooth, except J5, Z4 and Z5, which are serrate .

Venter ( Figure 2F ). Sternogenital shield smooth. Ventrianal shield with striae on the anterior region and with lateral reticules at the level of JV1 and ZV2, fused to peritremal shield by a strip arising from the anterior margin near corners; 102–106 long, 138–150 wide at anterior corners level; with four pairs of pre-anal setae, one distinct pair of pores posterior to JV2 and three pairs of lyrifissures; JV5 18–19.

Peritreme. Extending to the level of j1.

Spermatodactyl ( Figure 2G ). T-shaped, shaft 15–16.

Legs. SgeIII 9–10, SgeIV 12, StiIV 11–13, StIV 22–25. All macrosetae knobbed. Chaetotaxy: genu II 2-2 / 0-2 / 0-1; genu III 1-2 / 1-2 / 0-1.

Etymology

The specific epithet is composed of the Latin noun dorso and the adjective reticulatus, referring to the completely reticulated dorsal shield.

Figures

Figure 2. Typhloseiopsis dorsoreticulatus sp. nov., female: (A) Dorsal shield; (B) ventral idiosoma; (C) chelicera; (D) spermatheca; (E) leg IV. Male: (F) ventrianal shield; (G) spermatodactyl.