Phytoseius dominicensis Ferragut & Moraes

Ferragut, Francisco, Moraes, Gilberto Jose & Navia, Denise, 2011, Phytoseiid mites (Acari: Phytoseiidae) of the Dominican Republic, with a re-definition of the genus Typhloseiopsis De Leon, Zootaxa 2997, pp. 37-53: 43-45

publication ID

10.5281/zenodo.201690

persistent identifier

http://treatment.plazi.org/id/B46C746E-FFE8-FFDC-FF3A-FF08AED4FE57

treatment provided by

Plazi

scientific name

Phytoseius dominicensis Ferragut & Moraes
status

sp. nov.

Phytoseius dominicensis Ferragut & Moraes  sp. nov.

( Figures 1–6View FIGURES 1 – 6)

Diagnosis. Dorsal shield mostly smooth, except for few scanty diagonal striae along anterolateral margins and centrally near j 3 and j 4; with four pairs of solenostomes and sixteen pairs of setae, all sharp-tipped, except Z 4, spatulate, and Z 5, blunt-tipped. Most of setae on dorsal shield smooth, except j 3, j 4, z 2, Z 5 and r 3 which are serrated. Idiosomal setal pattern 12 A: 5 A/JV- 3,4:ZV. Ventrianal shield smooth, with three pairs of preanal setae and a pair of small pores posterior to JV 2. Calyx of the spermatheca funnel-shaped, with a long neck; atrium bulbous; major duct broad. Fixed and movable cheliceral digits with three and one teeth, respectively. Basitarsus IV with a short, curved and blunt-tipped macroseta.

FEMALE ( Figs 1–4View FIGURES 1 – 6) (holotype and 7 paratypes).

Dorsum ( Fig. 1View FIGURES 1 – 6): Dorsal shield elongated, with almost parallel lateral margins, 250 µm long (240–250) and 115 µm wide (112–122); mostly smooth, except for few scanty diagonal striae along anterolateral margins and transverse central striae near j 3 and j 4. With four pairs of solenostomes (gd 2, gd 5, gd 6 and gd 9) and sixteen pairs of setae (pattern 12 A: 5 A according to Chant & Yoshida-Shaul, 1992), all sharp-tipped, except Z 4, spatulate, and Z 5, blunt-tipped. All dorsal setae smooth, except j 3, j 4, z 2, Z 5 and r 3 serrated; in three specimens setae z 3 and s 4 are also serrated; setae j 1, j 6, J 2 and Z 4 never serrated. Measurements of setae: j 1: 20 (20–22), j 3: 23 (23–26), j 4: 19 (19–22), j 5: 16 (16–19), j 6: 17 (17–20), J 2: 16 (14–18), J 5: 8 (8–9), z 2: 17 (16–19), z 3: 31 (30–32), z 4: 21 (21–26), z 5: 17 (16–19), Z 4: 34 (32–37), Z 5: 47 (44–52), s 4: 41 (40–45), s 6: 50 (50–56), r 3: 34 (32–38), R 1: 19 (17–23). Peritreme reaching the level of j 1.

Venter ( Fig. 2View FIGURES 1 – 6): Smooth, quadrangular sternal shield, with three pairs of setae (st 1, st 2 and st 3) and two pairs of lyrifissures; posterior margin straight; st 4 on platelets. Genital shield smooth; posterior end 55 (55–58) µm wide. Ventrianal shield smooth, vase-shaped, 70 µm long (64–78) and 37 µm wide (34–40) near JV 1; with three pairs of preanal setae and a pair of small pores behind JV 2. Three pairs of setae and three pairs of small platelets around ventrianal shield; JV 5 40 µm long (35–46), slightly spatulate; ZV 1 slightly longer than ZV 3. Metapodal plates not discernible with none of the specimens examined.

Spermatheca ( Fig. 4View FIGURES 1 – 6): Calyx funnel-shaped, 13 µm long (13–14), with a long neck; atrium bulbous; major duct broad.

Chelicera ( Fig. 3View FIGURES 1 – 6): Fixed digit 22 µm long, with three small teeth, one proximal and two distal to pilus dentilis  ; movable digit 25 µm long, with one tooth.

Legs: Measurements of legs as follows: leg I: 132 µm long, leg II: 106, leg III: 98, leg IV: 148. A single curved and blunt-tipped macroseta, 20 µm long (18–22), inserted on basitarsus IV. Chaetotactic formula of genu II: 2 - 2 / 0, 2 / 0-1; genu III: 1-2 / 0, 2 / 0-1.

MALE ( Figs 5, 6View FIGURES 1 – 6) (2 paratypes).

Dorsum. Dorsal shield oval, with irregular margins and a lobed projection at level of r 3, 198 µm long, 118 µm wide (115–120); with faint striae along lateral margins anterior to Z 4 and smooth centrally; with four pairs of solenostomes (gd 2, gd 5, gd 6 and gd 9) and seventeen pairs of thick and pointed setae, except J 5, short, Z 4, slightly spatulate, and Z 5, blunt-tipped. Setae j 3, z 2, z 3, z 4, s 4, s 6, r 3 and Z 5 serrated. Measurements of setae j 1: 17 (16–18), j 3: 20, j 4: 17 (16–17), j 5: 15 (14–15), j 6: 16 (14–18), J 2: 13 (12–14), J 5: 7 (6–7), z 2: 17 (16–17), z 3: 22, z 4: 22 (21–22), z 5: 15 (14–16), Z 4: 22 (21–23), Z 5: 22 (21–22), s 4: 31 (30–31), s 6: 34, r 3: 27 (26–27), R 1: 13 (11–14). Peritreme reaching the level of z 2.

Ve n te r ( Fig. 6View FIGURES 1 – 6): Ventrianal shield with scanty striae, triangular, 81 µm long (80–82) and 111 µm wide (109– 113) at anterior corners; anterolateral margins fused with peritrematal shields; with three pairs of preanal setae and no distinct pores; seta JV 5 serrated, 18 µm long (17–18).

Chelicerae ( Fig. 5View FIGURES 1 – 6): Fixed digit 20 µm long, with 3 teeth; movable digit 21 µm long, with 1 tooth. Spermatodactyl L-shaped with a prominent heel and a pointed lateral process. The upper margin of the shaft with a membranous border.

Legs: A single curved and blunt-tipped macroseta, 18 µm long, inserted on basitarsus IV.

Specimens examined. Holotype female and two paratype females on Waltheria indica  L. ( Malvaceae  ), one paratype female on an unidentified plant, four paratype females and two males on Phyllostylon brasiliense Capanema  ( Ulmaceae  ); Boca del Diablo, Las Galeras (Peninsula de Samaná). Geographic coordinates 19 ° 15 ' 52 " N, 69 °09' 58 " W; 25 m asl, collected on 3 -X- 2008. Holotype and some paratypes were deposited at Museo Nacional de Ciencias Naturales, Madrid, Spain ( MNCNAbout MNCN). Reference number of holotype: MNCNAbout MNCN 20.02/ 17145; three paratype females and two males: MNCNAbout MNCN 20.02/ 17146, 20.02/ 17147, 20.02/ 17148.

Etymology. The name dominicensis  refers to the Dominican Republic, the country where the types of this new species were collected.

Remarks. This new species is most similar to Phytoseius pernambucanus Moraes & McMurtry, 1983  . However, the latter has dorsal shield rugose and with three pairs of solenostomes (gd 2, gd 6 and gd 9), setae j 4, j 5, j 6, J 2 and z 5 thin and short (8–11 µm), most dorsal shield setae blunt-tipped, sternal shield with only two pairs of setae, fixed cheliceral digit with four teeth and calyx of spermatheca with shorter neck. Phytoseius dominicensis  sp. nov. was collected in galls caused by eriophyoid mites on Waltheria indica  .

MNCN

Museo Nacional de Ciencias Naturales