Neoseiulella sexapori (Karg and Edland)

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 : 280-282

Neoseiulella sexapori (Karg and Edland)

( Figure 8 )

Seiulus sexapori Karg and Edland 1987: 388-389 ; Karg 1991: 27. Neoseiulella sexapori (Karg and Edland) Moraes et al. 2004: 297 ; Chant and McMurtry 2007: 147.

Adult female ( Figure 8a – d ) Dorsal shield ( Figure 8a ) — Dorsal shield heavily reticulated throughout: length 330 (320 – 340); width 179 (177 – 181) (at level of s4), 222 (220 – 224) (at level of Z1). Four pairs of solenostomes: gd2, gd5, gd6, and gd9. Poroid not visible. Sub-lateral setae (r3 and R1) on the lateral margin. The dorsal shield bearing 19 pairs of setae, all dorsal and sub-lateral setae smooth and on tubercles, except for Z5 which is slightly serrated: j1 16 (15 – 17); j3 25 (23 – 27); j4 14 (13 – 15); j5 14 (13 – 14); j6 19 (18 – 20); J2 23 (21 – 24); J5 11 (10 – 11); z2 17 (16 – 17); z3 25 (22 – 27); z4 24 (23 – 25); z5 15 (14 – 15); Z1 22 (21 – 22); Z4 28 (27 – 28); Z5 41 (40 – 42); s4 26 (25 – 27); s6 25 (24 – 26); S2 24 (23 – 25); S4 22 (20 – 23); S5 17 (16 – 18); sub-lateral setae r3 20 (19 – 21) and R1 15 (14 – 16). Presence of few visible muscles marks (sigilles) on the dorsal shield. Peritreme extending anteriorly to the level between z2-j3 .

Ventral shields ( Figure 8b ) — Sternal shield 53 (48 – 59) long and 59 (57 – 61) wide (at level of ST2), smooth with two pairs of setae (ST1 and ST2) and two pairs of small poroids. The third and fourth pairs of sternal setae (ST3, ST4) on separate platelets. A pair of small poroids accompanying ST4. Genital shield, 124 (122 – 126) long and 59 (55 – 63) wide (at level of ST5), smooth. Four elongate platelets or genital sigilla between genital and ventrianal shields. One pair of poroids close to the genital shield (ST 5) and 4 pairs of poroids around the genital shield. Ventrianal shield subquadrateshaped, 103 (101 – 105) long and 83 (80 – 85) wide (at level of ZV2), distinctly reticulated throughout, with four pairs of preanal setae (JV1, JV2, JV3 and ZV2), and a pair of circular solenostomes gv3 posteromediad to JV3. Four pairs of caudoventral setae (ZV1, ZV3, JV4 and JV5) on the integument surrounding the ventrianal shield. JV5 15 (13 – 17) long, smooth. Dimensions of the primary metapodal plate or inguinal sigillum 34 (33 – 33) long and 4 wide.

Spermatheca ( Figure 8c ) — Cervix 4 (3 – 4) long, cup-shaped.

Chelicera ( Figure 8d ) — Three teeth and a pilus dentilis on the fixed digit. Movable digit 27 (26 – 27) long, bidentate.

Legs — Measurements of legs: leg I 261 (252 – 270); leg II 215 (200 – 229); leg III 215 (210 – 219); leg IV 288 (285 – 291). Seven setae (2-2/0, 2/0-1) on the genu II. All legs much shorter than the dorsal shield and without macroseta.

Material examined — The female holotype and three female paratypes deposited in the Museum für Naturkunde, Arthropod collection, Berlin, Germany .

Adult male

The male of this species is unknown.

Previous reports — N. sexapori is only known from Norway on Rubus fruticosus L. ( Rosaceae ).

Figures

FIGURE 8: Neoseiulella sexapori (Karg and Edland). Female (holotype): a – dorsal shield; b – ventral shields; c – spermatheca; d – chelicera.