Neoseiulus Hughes

Guanilo, Alberto Daniel, Moraes, Gilberto José De, Toledo, Silvana & Knapp, Markus, 2008, Phytoseiid mites (Acari: Phytoseiidae) from Argentina, with description of a new species, Zootaxa 1884, pp. 1-35 : 17-21

Neoseiulus Hughes

Neoseiulus Hughes 1948: 141 ; Chant & McMurtry 2003a: 15; 2007: 22.

Neoseiulus argentinus Guanilo & Moraes , n. sp. ( Figure 1 )

Diagnosis. Species characterized by having dorsal shield imbricate, with a smooth transversal band across bases of setae Z4 and S4; setae serrate, except j4, j5, j6, J2, J5 and z5, smooth; ventri-anal shield pentagonal and reticulate; movable and fixed cheliceral digits with 2 and 4 teeth, respectively; calyx of spermatheca bellshaped. Leg macrosetae absent.

FEMALE. (3 specimens measured)

Dorsum ( Fig. 1 A). Dorsal shield imbricate, with a smooth transversal band across bases of setae Z4 and S4; 352 (345–360) long and 200 (195–205) wide. Setae j1 23 (22–24), j3 24 (24–25), j4 17, j5 17 (16–17), j6 17 (16–18), J2 21 (20–23), J5 12 (11–13), z2 23 (20–25), z4 27 (25–29), z5 18 (18–19), Z1 27 (26–28), Z4 36 (34–38), Z5 44 (42–49), s4 31 (31–32), S2 32 (30–34), S4 28 (24–30), S5 28 (25–30), r3 27, R1 22 (20–24). Setae serrate, except j4, j5, j6, J2, J5 and z5, smooth.

Venter ( Fig. 1 B). Sternal shield mostly smooth, with few lateral striae; posterior margin slightly concave; distances between st1-st3 57 (54–60) and st2-st2 59 (58–60). Genital shield smooth; distance between st5-st5 58 (57–60) Ventri-anal shield pentagonal, reticulate, with anterior margin slightly convex and lateral margins slightly concave between ZV2 and JV4; 119 (115–125) long, 86 (85–88) wide at level of ZV2 and 73 (70–75) wide at level of anus; with 3 pairs of pre-anal setae (JV1, JV2 and ZV2); JV4, JV5, ZV1 and ZV3 on soft cuticle; JV5 35 (34–36), serrate; rounded pre-anal pores posterior to and in longitudinal line with JV2. With 2 pairs of metapodal shields.

Peritreme. Extending forward to level of j1.

Chelicera ( Fig. 1 E). Movable digit 27 long, with 2 teeth; fixed digit 29 long, with 4 teeth.

Spermatheca ( Fig. 1 D). Calyx bell-shaped 13 (12–15) long; atrium nodular.

Legs ( Fig 1 C). Without macrosetae. Chaetotaxy: genu II 2, 2/1-2/1, 1; genu III 1, 2/1-2/0, 1.

MALE. (1 specimen measured)

Dorsum. Dorsal shield pattern as in female; 260 long and 176 wide. Setae j1 16, j3 18, j4 12, j5 15, j6 15, J2 16, J5 10, z2 21, z4 15, z5 16, Z1 21, Z4 23, Z5 32, s4 22, S2 27, S4 18, S5 17, r3 20, R1 17. Setae serrate, except j4, j5, j6, J2, J5 and z5 smooth.

Venter ( Fig. 1 G). Ventri-anal shield subtriangular, reticulate; 117 long and 145 wide at the anterior corners; with 3 pairs of pre-anal setae, 4 pairs of lyrifissures (1 pair anterior to and in longitudinal line with JV1, 1 pair slightly posterior and laterad of JV1, 1 pair laterad to and in transversal line with ZV1 and 1 pair laterad to and in transversal line with JV2), rounded pre-anal pores posterior and in longitudinal line with JV2; JV5 21, serrate.

Peritreme. Extending to level between j1 and j3.

Chelicera. Spermatodactyl about 19 long, L-shaped ( Figure 1 F).

Legs. Without macrosetae.

Locality and type material. Holotype female, allotype and 3 paratype females: Entre Ríos, Chajarí, Taue (30°45'44.3''S, 58°0'53''W), 5-V-2007, on Solanum americanum, A. D. Guanilo , deposited at Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil (ESALQ-USP). Three paratype females, same collection data as holotype, deposited at “Fundación Miguel Lillo”, Tucumán, Argentina.

Etymology. The name argentinus refers to Argentina, the country of origin of the type specimens of this species.

Remarks. This new species is similar to Neoseiulus plumosus Denmark & Muma, Neoseiulus tunus ( De Leon) and Neoseiulus neotunus ( Denmark & Muma) but differs mainly by the absence of macrosetae on all legs. In addition N. neotunus differs by having setae j1, z5, Z4, Z5 and S5 approximately 1.7, 1.4, 0.7 and 0.7 times as long as in this new species; N. plumosus differs by having setae S4, S5 and z2 approximately 1.7, 2.8 and 1.5 times as long as in this new species; and N. tunus differs by having the setae Z5 and S5 approximately 0.7 and 1.6 times as long as in this new species. N. argentinus n. sp. belongs to the tunus species subgroup of the cucumeris species group, as defined by Chant & McMurtry (2003a).

Neoseiulus barkeri Hughes

Neoseiulus barkeri Hughes 1948: 141 ; Moraes et al. 1986: 70; 2004: 104; Chant & McMurtry 2003a: 35; 2007: 25. Lasioseius polonicus Willmann 1949: 117 (synonymy by Nesbitt 1951).

Typhlodromus (Neoseiulus) barkeri, Nesbitt 1951: 35 –36.

Typhlodromus (Typhlodromus) barkeri, Chant 1959: 61 .

Amblyseius mckenziei Schuster & Pritchard 1963: 268 (synonymy by Ragusa & Athias-Henriot 1983). Amblyseius (Amblyseius) usitatus Van der Merwe 1965: 71 (synonymy by Ueckermann & Loots 1988). Amblyseius oahuensis Prasad 1968: 1518 (synonymy by Ragusa & Athias-Henriot 1983). Amblyseius picketti Specht 1968: 681 (synonymy by Ragusa & Athias-Henriot 1983).

Amblyseius mycophilus Karg 1970: 290 (synonymy by Ragusa & Athias-Henriot 1983). Amblyseius masiaka Blommers & Chazeau 1974: 308 (synonymy by Ueckermann & Loots 1988).

Previous records. Argentina [Tucumán ( Furtado et al. 2007)], Algeria, Australia, Brazil, Canary Islands, Cape Verde, China, Finland, France, Georgia, Germany, Ghana, Greece, Guinea, Israel, Italy, Japan, Jordan, The Netherlands, Nigeria, Norway, Reunion Island, Russia, South Africa, South Korea, Spain, Sweden, Turkey, Ukraine, West Bank and Yemen.

Remarks. No additional specimens of this species were found in this study. Neoseiulus chascomensis (Sheals) was described based only on the holotype, collected in Buenos Aires, Argentina. No further specimens of this species have been reported in the literature. N. tranversus is known only from the holotype, the allotype and a specimen reported by Furtado et al. (2007) from Argentina. Ragusa & Athias-Henriot (1973) considered N. chascomensis to differ from N. barkeri and N. tranversus Denmark & Muma by having gland pore “gd2” present, by the different lengths of setae z2 and s4 and macrosetae on tarsus IV, as well as by the different shapes of the ventri-anal shield and of the spermatheca. These differences could represent intra-specific variations. A conclusion in relation to the possible synonymy among those species would require the collection of additional specimens of N. chascomensis and N. transversus .

Neoseiulus californicus (McGregor)

Typhlodromus californicus McGregor 1954: 89 .

Typhlodromus chilenensis Dosse 1958: 55 (synonymy by Chant & McMurtry 2003a; El-Banhawy 1979). Cydnodromus californicus, Athias-Henriot 1977: 62 .

Neoseiulus californicus, Moraes et al. 1986: 73 ; 2004: 109; Chant & McMurtry 2003a: 21; 2007: 25. Amblyseius (Amblyseius) californicus, Ehara & Amano 1993: 10 .

Amblyseius (Neoseiulus) californicus, Ehara & Amano 1998: 33 .

FEMALE. (3 specimens measured)

Dorsal shield 347 (325–360) long and 167 (150–175) wide; j1 21 (20–22), j3 28 (25–30), j4 21 (20–22), j5 21 (20–24), j6 25 (22–28), J2 32 (30–35), J5 11 (10–13), z2 25 (20–30), z4 28 (25–30), z5 21 (19–23), Z1 30 (28–32), Z4 45 (40–48), Z5 65 (62–67), s4 35 (30–39), S2 36 (32–38), S4 34 (31–37), S5 28 (25–30), r3 23 (20–25), R1 21 (18–22); distances between st1-st3 60 (58–62), st2-st2 57 (53–60) and st5-st5 62 (58–65); ventri-anal shield 118 (105–125) long, 98 (88–105) wide at level of ZV2 and 68 (63–75) wide at level of anus; JV5 47 (45–50); movable cheliceral digit 25 long, with 1 tooth; fixed cheliceral digit 26 long, with 3 teeth; calyx of spermatheca 12 long; St IV 50 (45–54). Chaetotaxy: genu II 2, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1.

MALE. (1 specimen measured)

Dorsal shield 280 long and 160 wide; j1 16, j3 27, j4 20, j5 19, j6 23, J2 28, J5 10, z2 26, z4 23, z5 19, Z1 28, Z4 43, Z5 45, s4 29, S2 34, S4 32, S5 22, r3, 20, R1 19; ventri-anal shield 155 long and 150 wide at the anterior corners; St IV 37.

Specimens examined. Entre Ríos: Paraná – Paraná (31°44'27.2''S, 60°31'6.8''W), 3-V-2007, on unidentified plant (3Ψ); Paraná – Ruta Crespo (II) (31°57'53.3''S, 60°20'4.9''W), 3-V-2007, on Solanum sp2. (1Ψ). Salta: Joaquín V. Gonzalez – Desvío (25°9'51.2''S, 64°5'10.2''W), 12-V-2007, on Physalis angulata (4Ψ, 1ɗ, 1 immature). Tucumán: San Miguel de Tucumán – Zanja Abierta (26°48'19.6''S, 65°20'26.2''W), 15-V-2007, on Salpichroa origanifolia (1Ψ); San Miguel de Tucumán – 7 de Abril (26°34'9.4''S, 64°32'16.4''W), 15-V-2007, on P. angulata (1Ψ); San Miguel de Tucumán – Vipos (26°28'34.2''S, 65°18'42.3''W), 15-V-2007, on Solanum melongena (1Ψ); on Nicandra physaloides (3Ψ).

Previous records. Algeria, Argentina [unspecified location ( McMurtry 1977); Buenos Aires ( Monetti & Fernandez 1995; Cedola 1999), Río Negro ( Ruiz et al. 2005) and Tucumán ( Furtado et al. 2007)], Brazil, Chile, Colombia, Cuba, France, Guadeloupe, Guatemala, Greece, Italy, Japan, Mexico, Peru, Spain, Taiwan, Tunisia, USA, Uruguay and Venezuela.

Remarks. This species was originally described from a single adult male; measurements of specimens from California, USA (the state from where this species was originally described) were given by Schuster & Pritchard (1963). In specimens collected in this study, seta z4 was 0.8 times as long as reported by Schuster & Pritchard (1963); otherwise, the measurements of the specimens collected in this study are very similar to those given by those authors.

Neoseiulus chascomensis (Sheals)

Typhlodromus chascomensis Sheals 1962: 101 .

Amblyseius chascomensis, Schicha 1981: 214 .

Neoseiulus chascomensis, Ragusa & Athias-Henriot 1983: 668 ; Moraes et al. 1986: 75; 2004: 112; Chant & McMurtry 2003a: 21; 2007: 25.

Previous records. Argentina [Buenos Aires ( Sheals 1962)]. Remarks. See the remarks under N. barkeri . No additional specimens of this species were found in the present study.

Neoseiulus idaeus Denmark & Muma

Neoseiulus idaeus Denmark & Muma 1973: 266; Moraes et al. 1986: 83; 2004: 124; Chant & McMurtry 2003a: 21; 2007: 29; Guanilo et al. in press.

Amblyseius idaeus, Moraes & McMurtry 1983: 134 .

Neoseiulus tridenticus Ueckermann, Moraes & Zannou , in Zannou et al. 2006: 271 (synonymy by Guanilo et al. in press).

FEMALE. (3 specimens measured)

Dorsal shield 347 (325–358) long and 164 (155–175) wide; j1 22 (20–23), j3 48 (42–54), j4 44 (37–51), j5 44 (40–51), j6 52 (47–58), J2 52 (49–55), J5 10, z2 48 (42–52), z4 53 (47–59), z5 39 (32–47), Z1 54 (48–60), Z4 66 (62–72), Z5 71 (68–76), s4 62 (57–67), S2 58 (55–61), S4 36 (32–39), S5 29 (26–31), r3 32 (25–38), R1 33 (26–41); distances between st1-st3 59 (56–63), st2-st2 58 (55–61) and st5-st5 61 (58–64); ventri-anal shield 114 (108–123) long, 90 (83–100) wide at level of ZV2 and 74 (70–77) wide at level of anus; JV5 53 (49–56); movable cheliceral digit 23 (21–25) long, with 2–3 teeth; fixed cheliceral digit 23 (22–23) long, with 4–6 teeth; calyx of spermatheca 12 (11–13) long; St IV 46 (45–47). Chaetotaxy: genu II 2, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1.

Specimens examined. Corrientes: Goya – Gomez (29°5'36.5''S, 59°10'13.9''W), 7-V-2007, on Solanum sp.1 (1Ψ). Salta: Metán – Crestón (25°29'25.3''S, 64°58'28.10''W), 12-V-2007, on Va ss o bi a breviflora (11Ψ). Tucumán: San Miguel de Tucumán – 7 de Abril (26°34'9.4''S, 64°32'16.4''W), 15-V-2007, on Physalis angulata (1 Ψ); San Miguel de Tucumán – Portal La Virginia (26°42'41.4''S, 64°57'44.5''W), 15-V-2007, on Nicotiana glauca (2Ψ, 1ɗ); on Salpichroa origanifolia (1Ψ); on Solanum melongena (1Ψ); on Nicandra physaloides (6Ψ).

Previous records. Argentina [Tucumán ( Furtado et al. 2007)], Brazil, Colombia, Kenya ( Zannou et al. 2006), Paraguay, Peru (Guanilo et al. in press) and Venezuela.

Neoseiulus transversus Denmark & Muma

Neoseiulus transversus Denmark & Muma 1973: 267; Ragusa & Athias-Henriot 1983: 668; Moraes et al. 1986: 98; 2004: 148; Chant & McMurtry 2003a: 37; 2007: 31.

Previous records. Argentina [Tucumán ( Furtado et al. 2007)] and Brazil. Remarks. See the remarks under N. barkeri . No additional specimens of this species were found in this study.

Neoseiulus tunus ( De Leon)

Typhlodromips tunu s De Leon 1967: 29; Moraes et al. 1986: 151.

Amblyseius tunus, McMurtry & Moraes 1989: 181 ; Feres & Moraes 1998: 126.

Neoseiulus tunus, Moraes et al. 2000: 248 ; 2004: 135; Chant & McMurtry 2003a: 21; 2007: 31; Lofego et al. 2004: 8 .

FEMALE. (3 specimens measured)

Dorsal shield 290 (275–300) long and 181 (175–185) wide; j1 23 (21–25), j3 29 (28–30), j4 14 (12–16), j5 14 (14–15), j6 20 (19–22), J2 26 (22–28), J5 8 (7–10), s4 42 (42–43), S2 41 (38–43), S4 25 (23–30), S5 16 (13–18), z2 25 (24–27), z4 35, z5 16 (15–16), Z1 29 (26–32), Z4 47, Z5 70 (67–72), r3 26 (23–30), R1 18 (17–20); distances between st1-st3 54 (53–55), st2-st2 62 (60–63) and st5-st5 61 (60–63); ventri-anal shield 97 (90–105) long, 75 wide at level of ZV2 and 62 (60–63) wide at level of anus; JV5 48 (45–50); movable cheliceral digit 32 (31–33) long, with 3 teeth; fixed cheliceral digit 30 long, with 6 teeth; calyx of spermatheca 7 (6–9) long; Sge IV 20 (20–21), St IV 32 (30–33). Chaetotaxy: genu II 2, 2/0-2/1, 1; genu III 1, 2/1-2/0, 1.

Specimens examined. Entre Ríos: Paraná – Paraná (31°44'27.2''S, 60°31'6.8''W), 3-V-2007, on amaranthaceous plant (3Ψ); on Nicotiana glauca (15Ψ). Corrientes: Curuzú Cuatiá – Ex Ruta 14 (29°46'34.6''S, 58°4'42.8''W), 6-V-2007, on Solanum americanum (2Ψ). Salta: San Ramón de la Nueva Orán – Ingenio Lote Verona (23°9'45.9''S, 56°19'41.6''W), 10-V-2007, unidentified plant (1Ψ); Joaquín V. Gonzalez – Desvío (25°9'51.2''S, 64°5'10.2''W), 12-V-2007, on Cestrum sp. (1Ψ). Tucumán: San Miguel de Tucumán – Portal La Virginia (26°42'41.4''S, 64°57'44.5''W), 15-V-2007, on N. glauca (1Ψ); San Miguel de Tucumán – Vipos (26°28'34.2''S, 65°18'42.3''W), 15-V-2007, on Solanum melongena (1Ψ).

Previous records. Argentina [Tucumán ( Furtado et al. 2007)], Brazil, Guadeloupe, Jamaica, Marie-Galante, Martinique, Peru and Trinidad.

Remarks. Females collected in this study differ by having the setae S2 1.25 longer than the original description.

Figures

FIGURE 1. Neoseiulus argentinus n. sp.: A. Female dorsal shield; B. Female, ventral idiosoma; C. Female, genu, tibia and basitarsus of leg IV; D. Female, variations of spermatheca; E. Female, chelicera. F. Male, spermatodactyl; G. Male, ventri-anal shield.