Aristadromips Chant & McMurtry

Guanilo, Alberto Daniel, Moraes, Gilberto José De & Knapp, Markus, 2008, Phytoseiid mites (Acari: Phytoseiidae) of the subfamily Amblyseiinae Muma from Peru, with descriptions of four new species, Zootaxa 1880, pp. 1-47 : 32-39

Aristadromips Chant & McMurtry

Aristadromips Chant & McMurtry 2005c: 321 ; 2007: 59.

Aristadromips escarsidentatus Guanilo & Moraes n. sp. ( Figure 5 )

Diagnosis. Characterized by having dorsal shield with light reticulation anterolaterally and a pattern of faint roundish, elongate elements centrally between setae z2 and Z4, shield smooth elsewhere; setae smooth, except Z5 lightly serrate; setae S2, S4 and S5 relatively short [(length of dorsal shield/ length of seta S4) + (length of dorsal shield/ length of seta S5) ca. 28.0]; ventrianal shield vase-shaped, smooth; movable and fixed cheliceral digits with 3 and 4 teeth, respectively; calyx of spermatheca cup-shaped, thick-walled basally; atrium undifferentiated; macrosetae SgeI, SgeII, SgeIII and StIV slightly knobbed.

FEMALE. (2 specimens measured)

Dorsum. Dorsal shield with slightly anterolateral reticulation, with a pattern of faint roundish and elongate elements in the central area anterior to seta Z4 and smooth elsewhere, with 12 pairs of visible poroids and one pair of visible pores, 330 (328–333) long and 185 (183–188) wide; j1 28 (25–30), j3 41 (40–42), j4 22 (20– 23), j5 21 (20–22), j6 23 (21–24), J2 21 (20–22), J5 8 (6–9), z2 32 (30–33), z4 36 (34–37), z5 21 (20–22), Z1 26 (25–27), Z4 48 (44–51), Z5 62 (58–65), s4 48 (46–50), S2 40, S4 27 (26–27), S5 21 (20–21), r3 30, R1 32 (31–33). Setae smooth, except Z5, slightly serrate.

Venter. All shields smooth. Posterior margin of sternal shield slightly concave; distances between st1-st3 64, st2-st2 64 (62–65), st5-st5 77. Ventrianal shield vase-shaped, anterior margin straight, 103 (100–105) long, 84 (83–85) wide at level of ZV2 and 69 (68–70) wide at level of anus; with 3 pairs of preanal setae (JV1, JV2 and ZV2); JV4, JV5, ZV1 and ZV3 on soft cuticle; JV5 51. Preanal pores posteromesad to JV2. Two pairs of metapodal shields.

Peritreme. Extending slightly beyond level of j1.

Chelicera. Movable digit 40 long, 3 teeth; fixed digit 41 long, with 4 teeth.

Spermatheca. Calyx cup-shaped, thick-walled basally, 6 (5–7) long; atrium undifferentiated.

Legs. Macrosetae SgeI, SgeII, SgeIII and StIV slightly knobbed, other macrosetae sharp: SgeI 24 (23–25), SgeII 23 (22–23), SgeIII 26 (25–26), SgeIV 45 (42–48), StiIV 31(28–33), StIV 68 (67–68). Chaetotaxy: genu II 2, 2/1-2/0, 1; genu III 1, 2/0-2/0, 1.

MALE: Unknown.

Locality and type material. Holotype female: Lambayeque, Chiclayo, Callanca (06°50'51''S, 79°48'57''W), 6-VIII-2006, on Vallesia glabra (Cav.) , A. D. Guanilo, deposited at ESALQ-USP. One paratype female: Lambayeque, Chiclayo, Callanca (06°50'51''S, 79°48'57''W), 6-VIII-2006, on Solanum melongena L., A. D. Guanilo, deposited at ESALQ-USP.

Etymology. The name escarsidentatus refers to the reduced number of teeth on the fixed digit of the chelicera of this new species.

Remarks. Aristadromips escarsidentatus n. sp. shares short setae S4 and S5 with species of Typhlodromips De Leon, but not with other species of Aristadromips . This new species differs to A. quercicolus ( De Leon) by having shorter setae J2, Z1, Z4, S4 and S5; longer setae j4, j5 and z5; and the fixed cheliceral digit with fewer teeth (4 Vs 8–9 teeth).

Typhlodromips De Leon

Typhlodromips De Leon 1965b: 23 ; Chant & McMurtry 2005c: 323; 2007: 61. Amblyseius (Typhlodromips), Wainstein 1983: 313 . tee group Schicha 1987: 113.

ochii species group Ehara & Amano 1998: 41.

Typhlodromips angustus Guanilo & Moraes n. sp. ( Figure 6 )

Diagnosis. Characterized by having dorsal shield with distinct anterolateral striation, a pattern of faint roundish elements in the central area laterad j-series and anterior to seta S4, shield smooth elsewhere; seta Z4 longer than distance between its base and the base of seta Z5; movable and fixed cheliceral digits with 3 and 7 teeth, respectively; calyx of spermatheca slender, tubular, mostly parallel-sided flaring distally only very close to vesicle; macrosetae slender, with small knobs, except SgeIV stout and StIV sharp.

FEMALE. (3 specimens measured)

Dorsum. Dorsal shield with distinct anterolateral striation, with a pattern of faint roundish elements in the central area laterad j-series and anterior to seta S4, shield smooth elsewhere, with 15 pairs of visible poroids and 2 pairs of visible pores, 285 (278–293) long and 172 (170–175) wide; j1 19 (18–20), j3 23 (22–23), j4 14, j5 13 (12–15), j6 15, J2 16 (15–16), J5 10, z2 15 (15–16), z4 21 (20–23), z5 14 (13–15), Z1 22 (20–24), Z4 52 (50–56), Z5 72 (70–74), s4 35 (35–36), S2 24 (23–25), S4 16 (15–17), S5 14 (13–15), r3 14 (12–15), R1 13 (13–14). Setae smooth, except Z4 and Z5, serrate.

Venter. Sternal shield almost totally smooth, with few lateral striae; posterior margin slightly concave; distances between st1-st3 52 (52–53), st2-st2 55 (53–56). Genital shield smooth; distance between st5-st5 69 (66–70). Ventrianal shield smooth, pentagonal, anterior margin straight, 107 (105–108) long, 89 (88–90) wide at level of ZV2 and 61 (60–62) wide at level of anus; with 3 pairs of preanal setae (JV1, JV2 and ZV2); JV4, JV5, ZV1 and ZV3 on soft cuticle; JV5 43 (40–45); elliptic preanal pores mesad, and in transverse line with, JV2. Two pairs of short metapodal shields.

Peritreme. Extending just beyond level of j1.

Chelicera. Movable digit 27 (25–28) long with 3 teeth; fixed digit 28 (25–30) long with 7 teeth.

Spermatheca. Calyx slender, tubular, mostly parallel-sided, flaring distally only very close to vesicle, 41 (40–42) long; atrium small.

Legs. Macrosetae slender and with small knobs, except SgeIV stout and StIV sharp: SgeI 21 (20–22), SgeII 16 (15–17), SgeIII 19 (18–20), Sge IV 32 (31–33), StiIV 13 (12–14), StIV 54 (52–56). Chaetotaxy: genu II 2, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1.

MALE. (1 specimen measured)

Dorsum. Dorsal shield pattern as in female, 225 long, 133 wide; j1 17, j3 25, j4 12, j5 12, j6 13, J2 12, J5 9, z2 15, z4 20, z5 12, Z1 16, Z4 38, Z5 52, s4 27, S2 18, S4 18, S5 10, r3 9, R1 12. Setae smooth, except Z4 and Z5, slightly serrate.

Venter. Ventrianal shield subtriangular, rounded anteriorly, reticulate; 88 long and 138 wide at the anterior corners; with 3 pairs of preanal setae; with 3 pairs of lyrifissures (anterior and slightly lateral to JV1; anterior and slightly lateral to ZV1 and almost in line transversal with JV2); elliptical preanal pores mesad, and in transversal line with, JV2.

Spermatodactyl. Distally V-shaped; 14 long.

Legs. Macrosetae slender and sharp, except SgeIV stout and with a small knob at tip: SgeI 19, SgeII 13, SgeIII 16, SgeIV 28, StiIV 9, StIV 42.

Peritreme. Extending to level of j1.

Locality and type material. Holotype female and allotype male: San Martín: Tarapoto, Juan Guerra (06°32'51''S, 76°20'41''W), 27-VII-2006, on Lycopersicon esculentum Mill var. cerasiforme (Dunal) , A. D. Guanilo; two paratype females: San Martín, Moyobamba (06°02'55''S, 76°58'14''W), 28-VII-2006, on Solanum caricaefolium Rusby, A. D. Guanilo ; one paratype female: San Martín, Moyobamba (06°02'38''S, 76°57'30''W), 28-VII-2006, on Brugmansia suaveolens (Willd.) , A. D. Guanilo; all deposited at ESALQ-USP. Three paratype females: San Martín, Soritor, Rioja (Indochi) (06°07'34''S, 77°07'36''W), 29-VII-2006, on Physalis pubescens L., A. D. Guanilo; two paratype females: Amazonas, Bagua Grande, Aramango (05°43'52''S, 78°26'24''W), 2-VIII-2006, on Capsicum frutescens L, A. D. Guanilo; all deposited at MHN.

Etymology. The name angustus refers to the slender calyx of the spermatheca.

Remarks. This new species is similar to Typhlodromips dentilis ( De Leon) and T. sessor ( De Leon), both of which differ by having dorsal shield with distinct imbrications centrally. In addition, T. dentilis differs by having j3 1.30 longer and Z4 0.80 shorter than the new species; whereas T. sessor differs by having a broader calyx of spermatheca.

Typhlodromips amazonensis Guanilo & Moraes n. sp. ( Figure 7 )

Diagnosis. Characterized by having dorsal shield with a pattern of faint roundish and elongate elements over most of its surface anterad to region between S2 and S4 and smooth posteriorly; movable cheliceral digit with 3 teeth, fixed cheliceral digit with 8 teeth; calyx of spermatheca funnel-shaped; base of major duct distinctly sclerotized, lending a forked appearance to the atrium; macrosetae of genua I–IV with small knobs, StiIV stout, slightly shorter than other setae (not a true macroseta) and StIV sharp.

FEMALE. (2 specimens measured)

Dorsum. Dorsal shield with a pattern of faint roundish and elongate elements over most of its surface anterad to region between between S2 and S4, except for a marginal band that is reticulated anterad to s4 and smooth posterad to it; smooth posterad to region between S2 and S4; with 11 pairs of visible poroids and 3 pairs of visible pores, 314 (310–318) long and 208 (203–213) wide; j1 18 (16–20), j3 20 (18–21), j4 11 (10– 11), j5 12 (11–13), j6 12 (11–13), J2 14 (13–14), J5 8, z2 14 (13–15), z4 14, z5 12, Z1 15 (14–15), Z4 30 (27– 32), Z5 63 (61–64), s4 20 (18–21), S2 19 (18–19), S4 16 (15–17), S5 13 (12–13), r3 13, R1 11. Setae smooth, except Z4 and Z5, serrate.

Venter. All shields smooth. Sternal shield with posterior margin concave; distances between st1-st3 58 (57–58) and st2-st2 66 (64–67). Distance between st5-st5 73. Ventrianal shield pentagonal, anterior margin straight, 109 (108–110) long and 91 (90–93) wide at level of ZV2; with 3 pairs of preanal setae (JV1, JV2 and ZV2); JV4, JV5, ZV1 and ZV3 on soft cuticle; JV5 26 (23–29); preanal pores mesad to and in transversal line with JV2. Two pairs of metapodal shields.

Peritreme. Extending to level of j1.

Chelicera. Movable digit 28 (27–28) long with 3 teeth; fixed digit 26 (25–27) long with 8 teeth.

Spermatheca. Calyx funnel-shaped, 13 long; base of major duct distinctly sclerotized lending a forked appearance to the atrium.

Legs. Macrosetae of genua I–IV with small knobs, StiIV stout, slightly shorter than other setae (not a true macroseta) and StIV sharp: SgeI 10, SgeII 10, SgeIII 12 (10–13), SgeIV 19 (18–19), StiIV 9 (8–10), StIV 33 (31–35). Chaetotaxy: genu II 2, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1. MALE: Unknown.

Locality and type material. Holotype female: Amazonas, Pedro Ruiz, Donce (05°59'34''S, 77°58'16''W), 1-VIII-2006, on Cestrum sp., A. D. Guanilo, deposited at ESALQ-USP. One paratype female: same collection data as holotype, deposited at MHN.

Etymology. The name amazonensis refers to the type locality of this new species, in Amazonas, Peru.

Remarks. This new species is similar to Typhlodromips confertus ( De Leon), T. digitulus ( Denmark) and T. hellougreus Denmark & Muma. Typhlodromips confertus differs by having dorsal shield imbricate and calyx of spermatheca elongate and tubular. Typhlodromips digitulus (see redescription underneath) differs from this new species by having dorsal shield reticulate, j4-J2 shorter, and Z4 and Z5 longer than the new species here described. Typhlodromips hellougreus (see redescription underneath) differs by having dorsal shield reticulate and calyx of spermatheca ca. 1.5 times as long as T. amazonensis . According to Chant & McMurtry (2005c) this new species belongs to the lugubris species group of genus Typhlodromips .

Typhlodromips digitulus ( Denmark) ( Figures 8 A, B)

Amblyseius digitulus Denmark 1965: 91

Typhlodromips digitulus, Muma et al. 1970: 86 ; Moraes et al. 2004: 211 FEMALE. (1 paratype measured)

Dorsal shield 324 long, 192 wide; j1 21, j3 21, j4 6, j5 7, j6 9, J2 11, J5 8, z2 9, z4 11, z5 7, Z1 12, Z4 36, Z5 82, s4 24, S2 18, S4 14, S5 12, r3 10, R1 10. Distances between st1-st3 48, st2-st2 50 and st5-st5 46; ventrianal shield 90 long, 70 wide at level of ZV2 and 70 wide at level of anus; elliptic preanal pores posteromesad to JV2. Peritreme extending forward to level of j1. Movable cheliceral digit 20 long, with 4 teeth; fixed cheliceral digit 18 long, with 11 teeth. Calyx of spermatheca 20 long. Macrosetae of leg IV and of genu III knobbed; other macrosetae sharp: SgeI 17, SgeII 18, SgeIII 22, StiIII 16, SgeIV 38, StiIV 23, StIV 47. Chaetotaxy (not observed).

Specimen examined. One paratype female: USA, Florida, Polk, 7-V-1973, on Paspalum notatum (Poaceae) , H. A. Denmark.

Previous records. USA.

Remarks. Although this species was not found and has not been reported from Peru, a partial redescription is here provided because of the insufficient published information on the morphology of this species and because of its similarity with a new species here described, T. amazonensis n. sp.

Typhlodromips hellougreus Denmark & Muma ( Figures 8 C, D)

Typhlodromips hellougreus Denmark & Muma 1967: 173; Moraes et al. 2004: 214; Chant & McMurtry 2007: 61.

FEMALE. (Holotype measured) Dorsal shield 385 long, 240 wide; j1 20, j3 19, j4 11, j5 10, j6 10, J2 14, J5 11, z2 14, z4 15, z5 10, Z1 18, Z4 28, Z5 61, s4 20, S2 20, S4 20, S5 20, r3 17, R1 13. Distances between st1-st3 63, st2-st2 67 and st5-st5 75; ventrianal shield 125 long, 105 wide at level of ZV2 and 85 wide at level of anus; elliptic preanal pores mesad and almost in transversal line with JV2. Peritreme extending forward to level of j1. Movable cheliceral digit 28 long, with 2 teeth; fixed cheliceral digit 29 long, with 7 teeth. Calyx of spermatheca 19 long. Macrosetae of leg IV slightly knobbed; other macrosetae sharp: SgeI 23, SgeII 15, SgeIII 18, SgeIV 16, StiIV 11, StIV 44. Chaetotaxy: genu II 2, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1.

MALE. (Allotype measured)

Dorsal shield 305 long, 160 wide; j1 18, j3 19, j4 10, j5 10, j6 12, J2 13, J5 11, z2 13, z4 12, z5 10, Z1 12, Z4 24, Z5 45, s4 18, S2 20, S4 16, S5 16, r3 15, R1 15. Ventrianal shield, 128 long and 150 wide at the anterior corners; elliptic preanal pores posteromesad to JV2; lyrifissures not discernable on ventrianal shield. Peritreme extending forward to level of j1. Shape of macrosetae as in female: SgeI 11, SgeII, 13, SgeIII 13, SgeIV 13, StiIV 14, StIV 36. Chaetotaxy as in female.

Specimens examined. Holotype: USA, Florida, San Sebastian, 25-II-1966, on Pinus clausa (Pinaceae) , M. H. Muma; Allotype: USA, Florida, Frostproof, 3-III-1966, on unknown plant, M. H. Muma.

Previous records. USA.

Remarks. Although this species was not found and has not been reported from Peru, a partial redescription is here provided because of the insufficient published information on the morphology of this species and because of its similarity with a new species here described, T. amazonensis n. sp.

Typhlodromips mangleae De Leon

Typhlodromips mangleae De Leon 1967: 28 ; Moraes et al. 2004: 217; Chant & McMurtry 2007: 63. Amblyseius mangleae, Moraes et al. 1991: 124 .

FEMALE. (1 specimen measured)

Dorsal shield 325 long, 215 wide; j1 11, j3 21, j4 9, j5 9, j6 11, J2 12, J5 10, z2 12, z4 11, z5 9, Z1 13, Z4 33, Z5 72, s4 26, S2 10, S4 9, S5 7, r3 20, R1 14. Distances between st1-st3 54, st2-st2 59 and st5-st5 85; ventrianal shield 108 long, 88 wide at level of ZV2 and 80 wide at level of anus; elliptic preanal pores posteromesad to JV2; JV5 38. Peritreme extending forward to level of j1. Not possible to measure movable and fixed digits and to count their teeth. Calyx of spermatheca 5 long. Macrosetae sharp: SgeI 30, SgeII 27, SgeIII 30, StiIII 28, SgeIV 47, StiIV 34, StIV 59. Chaetotaxy: genu II 1, 2/0-2/0, 1; genu III 1, 2/1-2/0, 1.

Specimen examined. San Martín: Tarapoto — Juan Guerra (06°32'51''S, 76°20'41''W), 27/VII/2006, on Solanum caricaefolium (1Ψ).

Previous records. Brazil, Colombia, Puerto Rico and Trinidad.

Typhlodromips sinensis Denmark & Muma

Typhlodromips sinensis Denmark & Muma 1972: 24; Moraes et al. 2004: 226; Chant & McMurtry 2005c: 327; 2007: 63. Amblyseius sinensis, Moraes et al. 1991: 124 .

Previous records. Colombia and Peru — Junín ( Moraes et al. 1991).

Remarks. No additional specimens were found in this study.

Figures

FIGURE 5. Aristadromips escarsidentatus Guanilo & Moraes n. sp. A. Dorsal shield; B. Ventral shields; C. Genu, tibia and basitarsus of leg IV; D. Chelicera; E. Variations of the spermatheca.

FIGURE 6. Typhlodromips angustus Guanilo & Moraes n. sp. Female: A. Dorsal shield; B. Ventral shields; C. Genu, tibia and basitarsus of leg IV; D. Variations of the spermatheca; E. Chelicera. Male: F. Spermatodactyl; G. Ventrianal shield.

FIGURE 7. Typhlodromips amazonensis Guanilo & Moraes n. sp. A. Dorsal shield; B. Ventral shields; C. Genu, tibia and basitarsus of leg IV; D. Chelicera; E. Spermatheca.

FIGURE 8. Typhlodromips digitulus Denmark. Female. A. Variations of the spermatheca; B. Chelicera (based on a paratype female collected in Polk City, Florida, USA). Typhlodromips hellougreus Denmark & Muma. Female: C. Spermatheca; D. Chelicera (based on the holotype).