Typhlodromips paramilus Nuvoloni & Lofego

Nuvoloni, Felipe Micali, Lofego, Antonio Carlos, Castro, Elizeu Barbosa & Feres, Reinaldo José Fazzio, 2015, Phytoseiidae (Acari: Mesostigmata) from rubber tree crops in the State of Bahia, Brazil, with description of two new species, Zootaxa 3964 (2), pp. 260-274: 267-268

publication ID

http://dx.doi.org/10.11646/zootaxa.3964.2.6

publication LSID

lsid:zoobank.org:pub:F03228C6-B02E-4846-AF92-BEB5EBE70C8B

DOI

http://doi.org/10.5281/zenodo.3507325

persistent identifier

http://treatment.plazi.org/id/03A887A6-6D1C-AB63-DFC2-7EB8FA96BDB5

treatment provided by

Plazi

scientific name

Typhlodromips paramilus Nuvoloni & Lofego
status

n. sp.

Typhlodromips paramilus Nuvoloni & Lofego   n. sp.

( Figs 8–16 View FIGURES 8 – 14 View FIGURES 15 – 16 )

Diagnosis. This new species belongs to the lugubris species group, characterised by Chant & McMurtry (2005 b) as having the spermatheca funnel-shaped. It is similar to T. furcus Lofego et al. (2011)   by having the spermatodactyl bifurcate, leg macrosetae with knobbed-tips, and the spermatheca funnel-shaped. It also resembles T. amilus De Leon (1967)   due to the dorsal shield reticulation, and similar length of the dorsal setae. Otherwise, the new species is distinguished from T. furcus   by having dorsal shield strongly reticulated, setae s 4, S 2, Z 4 and Z 5 with knobbedtips and the spermatodactyl ending in a terminal hook. Typhlodromips paramilus   n. sp. differs from T. amilus   by having the calyx of spermatheca about one-half to one-third shorter, the atrium more prominent, and the ventri-anal shield pentagonal instead of sub-triangular as in T. amilus   .

Specimens examined. Holotype female and paratype male collected from Hevea brasiliensis   , clone PMB 0 1, from Igrapiúna, Bahia, Brazil, (13 ° 48 'S, 39 ° 10 'W), 8 August 2008, E.B. Castro coll.; three paratype females from H. brasiliensis   , clone FDR 5788, 8 August 2008, E.B. Castro coll.; one paratype female collected from Hevea brasiliensis   , clone PMB 0 1, 8 August 2008, F.M. Nuvoloni coll.; all specimens were deposited at DZSJRP.

Etymology. The name paramilus   was designated due to the similarity between the new species and Typhlodromips amilus   .

Description. Female (n= 6) ( Figs 8–12 View FIGURES 8 – 14 ).

Dorsum. Dorsal shield mostly reticulate, with lateral striation anteriad of S 4, and light striation on transversal band posteriad of S 4 and Z 4, 307 [313] (300–332) long and 175 [185] (175–200) wide at level of s 4; seven pairs of pores and 13 pairs of lyrifissures visible. Setae j 1 18 [17] (13–19), j 3 20 [20] (20–21), j 4 12 [12] (11–14), j 5 12 [12] (11–13), j 6 15 [14] (13–15), J 2 18 [18] (17–20), J 5 13 [11] (10–13), z 2 14 [14] (12–15), z 4 16 [17] (15–18), z 5 14 [14] (13–16), Z 1 18 [19] (16–21), Z 4 34 [35] (32–37), Z 5 58 [64] (58–68), s 4 26 [24] (22–26), S 2 23 [23] (22–25), S 4 15 [18] (15–20), S 5 12 [14] (12–15), r 3 11 [13] (11–14), and R 1 16 [15] (13–16). Most setae smooth and pointed, except s 4, S 2 which are smooth and knobbed, and Z 4 and Z 5 serrated and knobbed.

Venter. Sternal shield with anterolateral striae; three pairs of setae and two pairs of lyrifissures. Distances between st 1 -st 3 56 [58] (56–60), st 2 -st 2 60 [64] (60–70). Genital shield with faint striation, distance between st 5 - st 5 63 [63] (60–67). Ventrianal shield pentagonal, lightly striated, with 100 [106] (100–113) long, 85 [89] (85–95) wide at level of ZV 2 and 80 [81] (80–84) wide at median level of anus, with three pairs of pre-anal setae (JV 1, JV 2, ZV 2) and a pair of pores in the transverse line with JV 2. Setae JV 5 with knobbed-tip. Opisthogastric cuticle with a pair of small metapodal plates. Peritremes extending to level of j 1.

Chelicera. Fixed digit 27 [28] (25–30) long, with eight to nine teeth and pilus dentilis present; movable digit 25 [26] (24–29) long, with four teeth.

Spermatheca. Calyx funnel-shaped, 12 [17] (12–20) long, atrium nodular.

Legs. Macrosetae present on all legs: Sge I 17 [20] (17–22), Sge II 15 [16] (15–17), Sge III 20 [23] (20–25), Sti III 17 [15] (14–17), Sge IV 30 [33] (30–35), Sti IV 15 [42] (12–20) and St IV 40 [42] (37–45). All macrosetae with terminal knob. Apart from the distinct macrosetae, genu IV has one, and tibia IV has two knobbed-tip setae. Chaetotaxy of genu II 2 2 /0 2 / 2 2; genu III 1 2 / 2 1 /0 1.

Male. (n= 2) ( Figs 13–14 View FIGURES 8 – 14 ).

Dorsum. Dorsal shield pattern similar to female, 245 long and 160 wide. Setae j 1 15, j 3 17, j 4 11, j 5 12, j 6 15, J 2 16, J 5 9, z 2 15, z 4 16, z 5 12, Z 1 18, Z 4 27, Z 5 45, s 4 20, S 2 18, S 4 16, S 5 17, r 3 10, R 1 15. Most setae smooth and pointed, except s 4 and S 2, which are smooth and knobbed, and Z 4 and Z 5, serrated and knobbed.

Venter. Sternogenital shield smooth. Ventrianal shield subtriangular, reticulated, 110 long, 145 wide at anterior corners, and 80 wide at anus level, with three pairs of pre-anal setae (Jv 1, Jv 2 and Zv 2), one pair of pores in the transverse line with JV 2. Seta Jv 5 smooth, more than 1.5 longer than pre-anal setae. Peritreme extending to level of j 1.

Chelicera. Movable digit 20 long, with one teeth; fixed digit 25 long, with five teeth; pilus dentilis not visible. Spermatodactyl elongate and bifurcate, 14–20 long, terminal bifurcation obscured in some preparations.

Legs. Macrosetae present on all legs: Sge I 15 with pointed tip, Sge II 14 knobbed tip, Sge III 15 pointed tip, Sti III 13 blunt tip, Sge IV 25 knobbed, Sti IV 20 knobed, and St IV 32 knobbed. Chaetotaxy as in female.

Remarks. Typhlodromips paramilus   n. sp. was among the most abundant species found in the survey. This species has setae Z 4 and Z 5, with knobbed tips and serrated stems ( Figs 15–16 View FIGURES 15 – 16 ), similar to those of T. amilus   . The seta has an evident terminal gap, with a hyaline mucous or waxy knob. The knob is variable in size among individuals, and sometimes absent, suggesting that it is secreted by an associated gland at the base of the seta.

PMB

Prirodnjacki Muzej Srpske Zemije