Neoseiulella squamiger (Wainstein), 2004

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 : 271

Neoseiulella squamiger (Wainstein)

( Figure 3 )

Typhlodromus squamiger Wainstein 1960: 689-690 ; Chant and Yoshida-Shaul 1989: 1013. Typhlodromus (Nesbitteius) squamiger (Wainstein) Arutunjan 1970: 19 . Typhloctonus squamiger (Wainstein) Wainstein 1973: 176 ; Chaudhri et al. 1974, 231; Kolodochka 1974a: 27; Arutunjan 1977: 55; Kolodochka 1978: 50-51; Denmark and Rather 1984: 173-174; Moraes et al. 1986: 233. Pegodromus squamiger (Wainstein) Athias-Henriot and Fauvel 1981: 74 . Neoseiulella (Typhloctona) squamiger (Wainstein) Denmark and Rather 1996: 61-62. Neoseiulella squamiger (Wainstein) Moraes et al. 2004: 291 ; Chant and McMurtry 2007: 147.

Adult female ( Figure 3a – d )

Dorsal shield ( Figure 3a ) — Dorsal shield distinctly reticulated throughout: 342 long, 184 (at level of s4) and 210 (at level of Z1). Five pairs of small solenostomes on the dorsal shield: gd1, gd2, gd6, gd8, and gd9 and no poroid visible. Sub-lateral setae r3 on the lateral margin and R1 on the dorsal shield. Dorsal shield bearing 20 pairs of setae (R1 on dorsal shield) all serrated: j1 14; j3 20; j4 17; j5 16; j6 21; J2 29; J5 13; z2 20; z3 25; z4 28; z5 15; Z1 28; Z4 35; Z5 42; s4 29; s6 30; S2 34; S4 27; S5 17; sublateral setae r3 20 and R1 20. Peritreme extending anteriorly to the level of j3.

Ventral shields ( Figure 3b ) — Sternal shield 37 long and 53 wide (at level of ST2), smooth with three pairs of setae (ST1, ST2 and ST3) and two pairs of poroids (posterior to ST1; anterior to ST3). ST3 on an elongate projection of the sternal shield. A pair of metasternal setae (ST4) on separate platelets with a pair of small poroids. Genital shield 130 long and 60 wide (at level of ST5), smooth. Four elongate platelets or sigilla between genital and ventrianal shields. One pair of poroids close to the genital shield (ST 5) and 3 pairs of poroids around the genital shield. Ventrianal shield subquadrateshaped 103 long and 86 wide (at level of ZV2), distinctly reticulated, with four pairs of preanal setae (JV1, JV2, JV3 and ZV2) and a pair of solenostomes gv3 posterior to JV3. Four pairs of caudoventral setae (ZV1, ZV3, JV4 and JV5) on the integument surrounding the ventrianal shield. JV5 17 long, smooth. Primary metapodal plate or inguinal sigillum 30 long and 3 wide.

Spermatheca ( Figure 3c ) — Cervix 4 long, cupshaped, with an enlarged atrium.

Chelicera ( Figure 3d ) — Two teeth and a pilus dentilis on the fixed digit. Movable digit 25 long, is edentate.

Legs — Measurements of legs: leg I 227; leg II 209; leg III 211; leg IV 239. Seven setae (2-2/0, 2/0- 1) on the genu II. No macroseta on legs.

Material examined — The female holotype deposited in the ASU, Institute of Zoology , Academy of Sciences, Kiev, Ukraine .

Adult male ( Figure 3e, f ) Described by Denmark and Rather (1984, 1996).

Dorsal shield chaetotaxy is similar to the female. Ventrianal shield 103 long and 142 wide, distinctly reticulated and with five pairs of preanal setae and three pairs of poroids. Spermatodactyl with a terminal foot, and a slightly enlarged toe.

This description is based on one of the male specimens of our collection (Montpellier SupAgro collection, UMR CBGP), collected in Kiev ( Ukraine) on Norway maple ( Acer platanoides L.).

Previous reports — N. squamiger is only known from the West-Palearctic area. Countries from which this species is reported are: Armenia ( Arutunjan 1970, 1971); Croatia ( Tixier et al. 2010); Greece ( Papadoulis and Emmanouel 1990); Hungary ( Bozai 1996, 1997; Ripka 1998, 2006); Moldova ( Wainstein 1960, 1973); Ukraine ( Kolodochka 1973, 1974b, 1978). Plant supports on which N. squamiger was collected are: Acer campestre , A. platanoides , Acer sp. ( Aceraceae ); Carpinus betulus , Corylus avellana , Ostrya carpinifolia Scopoli (Betulaceae) ; Cornus sp. ( Cornaceae ); Fraxinus ornus L. ( Oleaceae ); J. regia (Juglandaceae) ; Picea sp. ( Pinaceae ); Prunus ( Cerasus ) sp., Prunus sp. ( Rosaceae ).

Figures

FIGURE 3: Neoseiulella squamiger (Wainstein). Female (holotype): a – dorsal shield; b – ventral shields; c – spermatheca; d – chelicera. Male (collection): e – ventrianal shield; f – spermatodactyl.