Neoseiulus marginatus (Wainstein)

Palevsky, Eric, Gal, Shira & Ueckermann, Edward A., 2009, Phytoseiidae from date palms in Israel with descriptions of two new taxa and a key to the species found on date palms worldwide (Acari: Mesostigmata), Journal of Natural History 43 (27 - 28), pp. 1715-1747 : 1721-1724

Neoseiulus marginatus (Wainstein)

( Figure 3A–G )

Typhlodromus marginatus Wainstein 1961, p. 158 .

Amblyseius (Amblyseius) marginatus ; Ehara 1966, p. 21.

Amblyseius marginatus ; Wainstein and Shcherbak 1972, p. 41.

Neoseiulus marginatus ; Moraes de et al. 2004, p. 132; Chant and McMurtry, 2007, p. 29. Amblyseius polyporus Wainstein 1962a, p. 143 ; 1975, p. 920.

Amblyseius subtilisetosus Beglyarov 1962, p. 198 ; Wainstein 1975, p. 920.

Material examined

Six females and three males from C. dactylon in the lake Tiberius area (most northern region of date palms in Israel), 24 June 1971, T. Grinberg. This is the first record of this species in Israel .

Female (n = 6)

Dorsum ( Figure 3A , Table 1). Dorsal shield oval, mostly smooth with anterolateral striae. Six pairs of solenostomes present, gd1, gd2, gd4, gd6, gd8 and gd9. All dorsal setae smooth, except for setae Z4 and Z5. Setae r3 and R 1 on integument.

Peritreme. Extending to level of setae j1.

Venter ( Figure 3B , Table 1). Sternal and genital shields smooth, former with three pairs of setae, ST4 on small metasternal shields. Posterior margin of shield straight with two small lateral lobes. Ventrianal shield reticulate with three pairs of preanal setae and a pair of small preanal pores posteromesad of JV2. Opisthogaster with eight pairs of platelets, four platelets between genital and ventrianal shields, four pairs of setae and two pairs of metapodal shields.

Chelicera ( Figure 3C , Table 1). Fixed digit with three teeth and a pilus dentilis, movable digit with one tooth.

Spermatheca ( Figure 3D , Table 1). Calyx elongate, bell-shaped, atrium bifid. Legs ( Figure 3E , Table 1). Leg IV with only one macroseta. Chaetotaxy of genu II: 2-2/0, 2/0-1, genu III: 1-2/1, 2/0-1.

Male (n = 3)

Dorsum ( Table 1). Dorsal shield pattern as in female. All setae smooth, except for Z4 and Z5.

Peritreme. Extending to base of j3. Venter ( Figure 3F , Table 1). Ventrianal shield subtriangular and reticulate with five pairs of preanal setae, a pair of very small pores posteromedially to JV2.

Spermatodactyl ( Figure 3G , Table 1). T-shaped.

Legs ( Table 1). Macroseta St IV pointed. Chaetotaxy of genua II and III same as in female.

Remarks

The Israeli specimens resemble the redescription of Livshitz and Kuznetsov (1972) in all respects. Male is described here for the first time.

Species group paspalivorus Chant and McMurtry 2003

Figures

Figure 3. Neoseiulus marginatus. (A) Dorsal view; (B) ventral view; (C) chelicera; (D) spermatheca; (E) leg IV; (F) male ventrianal shield; (G) male spermatodactyl.