Neoseiulella dachanti (Collyer), 1986

Kanouh, M., Kreiter, S., Douin, M. & Tixier, M. - S., 2012, Revision Of The Genus Neoseiulella Muma (Acari: Phytoseiidae). Re-Description Of Species, Synonymy Assessment, Biogeography, Plant Supports And Key To Adult Females, Acarologia 52 (3), pp. 259-348 : 310

Neoseiulella dachanti (Collyer)

( Figure 25 )

Typhlodromus dachanti Collyer 1964: 638-640 . Schicha 1980: 22-24; Collyer 1982: 189; Schicha 1987: 139, 141; Chant and Yoshida-Shaul 1989: 1032-1034. Neoseiulella (Neoseiulella) dachanti (Collyer) Denmark and Rather 1996: 54-55. Neoseiulella dachanti (Collyer) Moraes et al. 1986: 201 ; Moraes et al. 2004: 293; Chant and McMurtry 2007: 147.

Adult female ( Figure 25a – e )

Dorsal shield ( Figure 25a ) — Dorsal shield smooth: length 394; width 225 (at level of s4), 226 (at level of Z1). Four pairs of solenostomes: gd2, gd4, gd6, and gd9. Four pairs of poroids. Sub-lateral setae (r3 and R1) on the lateral margin. Dorsal shield bearing 19 pairs of setae, all dorsal and sub-lateral setae smooth, except Z5 slightly serrated: j1 27; j3 41; j4 7; j5 8; j6 12; J2 13; J5 7; z2 11; z3 39; z4 13; z5 8; Z1 13; Z4 48; Z5 111 (106 – 115); s4 42; s6 17; S2 23; S4 12; S5 10; r3 14 and R1 15. Presence of few visible muscles marks (sigilles) on the dorsal shield. Peritreme extending anteriorly to the level of j1.

Ventral shields ( Figure 25b ) — Sternal shield 83 long and 80 wide (at level of ST2), smooth with three pairs of setae (ST1, ST2 and ST3) and two pairs of poroids. A pair of metasternal setae (ST4) on separate platelets accompanied by a pair of small poroids. Genital shield 104 long and 68 wide (at level of ST5), smooth. Four elongate platelets or genital sigilla separating genital and ventrianal shields folded under genital shield. One pair of poroids close to the genital shield (ST 5) and 3 pairs of poroids around the genital shield. Ventrianal shield 121 long and 88 wide (at level of ZV2), smooth, with three pairs of preanal setae (JV1, JV2 and ZV2; JV3 absent), with a pair of large solenostomes gv3 posterior to JV2. Four pairs of caudoventral setae (ZV1, ZV3, JV4 and JV5) on the integument surrounding the ventrianal shield. JV5 39 long, smooth. Primary metapodal plate or inguinal sigillum 20 long and 6 wide.

Spermatheca ( Figure 25c ) — Cervix 3 long, shallowly cup-shaped.

Chelicera ( Figure 25d ) — Twelve teeth, without pilus dentilis, on the fixed digit. Movable digit, 35 long, bearing three teeth.

Legs ( Figure 25e ) — Measurements of legs: leg I 372; leg II 323 (318 – 328); leg III 323 (318 – 328); leg IV 395 (391 – 400). Seven setae (2-2/0, 2/0-1) on the genu II. Two macrosetae, 30 and 27 long, on genu and the tibia III, respectively. Three other macrosetae, 46, 48 and 48 long, on genu, tibia and basitarsus IV, respectively.

Material examined — The female lectotype deposited in the BMNH, the British Museum of Natural History , Cromwell Road, London, UK .

Adult male

Described by Collyer (1964) and Schicha (1980). We were not able to borrow the male type specimen of this species.

Previous reports — The type specimens of N. dachanti were collected at Waitakeres, near Auckland, New Zealand, on "native bush". This species is only known from the Australasian area: New Zealand ( Collyer 1964, 1982) and Australia ( Schicha 1987). Plant supports on which this species was reported are: Brachyglottis repanda J. R. and G. Forst. ( Asteraceae ); Coprosma sp. ( Rubiaceae ); Cytisus sp. ( Fabaceae ); Elaeocarpus dentatus (G. R. and G. Forster) Vahl ( Elaeocarpaceae ); Erica sp. ( Ericaceae ); Melicytus ramiflorus G. R. and G. Forster ( Violaceae ); Nothofagus sp. ( Nothofagaceae ); Nothopanax sp., Pseudopanax sp. ( Araliaceae ); Podocarpus sp. ( Podocarpaceae ); Eucalyptus sp. ( Myrtaceae ); Rubus sp. ( Rosaceae ) and tree ferns.

Figures

FIGURE 25: Neoseiulella dachanti (Collyer). Female (lectotype): a – dorsal shield; b – ventral shields; c – spermatheca; d – chelicera; e – leg IV.