Proprioseiopsis messor (Wainstein)

Ostovan, H., Faraji, F., Kamyab, F. & Khadempour, F., 2012, Notes On Neoseiulus Paspalivorus (De Leon) And Proprioseiopsis Messor (Wainstein) (Acari: Phytoseiidae) Collected In Iran, Acarologia 52 (1), pp. 51-58 : 54-55

Proprioseiopsis messor (Wainstein)

( Figure 2 , A-E)

Typhlodromus messor Wainstein, 1960: 668 .

Amblyseius (Amblyseius) apheles Van der Merwe, 1968: 121 (synonymy according to Ueckermann and Loots, 1988).

Amblyseius lindquisti Schuster and Pritchard, 1963: 246 (synonymy according to Abbasova, 1972).

Female — 10 specimens measured.

Idiosomal setal pattern — 10A:8E/JV-3:ZV.

Dorsal idiosoma ( Figure 2A ) — Dorsal shield 407 (390 – 430) long and 278 (255 – 290) wide at j 6 level, smooth (a faint network of reticulation is visible at posterior half of dorsal shield in some specimens); dorsal setae smooth, except for Z 4 and Z 5, serrate (in some specimens Z 4 smooth); lengths: j 1 36 (34 – 38), j 3 65 (61 – 70), j 4 5, j 5 6 (5 – 6), j 6 7 (6 – 8), J 5 11 (10 – 11), z 2 35 (32 – 40), z 4 27 (21 – 33), z 5 6 (5 – 6), Z 1 9 (8 – 10), Z 4 122 (113 – 128), Z 5 167 (143 – 190), s 4 99 (92 – 105), S 2 11 (10 – 12), S 4 9 (8 – 12), S 5 18 (15 – 23); setae r 3 26 (25 – 28) and R 1 14 (14 – 15) on lateral integument .

Peritreme — Extending anterior to setae j 1 ( Figure 2A ).

Ventral idiosoma ( Figure 2B ) — Sternal shield smooth, with a few lateral striae, posterior margin concave, 67 (66 – 69) long and 97 (93 – 100) wide at level of setae ST 2; ST 1 42 (41 – 44), ST 2 40 (38 – 43), ST 3 38 (36 – 40), ST 4 38 (37 – 40), ST 4 on metasternal shields; genital shield smooth, width 106 (103 – 109) at widest point, ST 5 40 (37 – 42); 2 pairs of metapodal shields, primary 26 (24 – 28) and accessory 13 (11 – 16) long; ventrianal shield pentagonal, with reticulation, length 131 (125 – 135), width at widest point 133 (123 – 140) and width at level of paranal setae 99 (95 – 103); with 3 pairs of preanal setae JV 1 32 (31 – 32), JV 2 31 (31 – 32), ZV 2 29 (26 – 32); 4 pairs of setae surrounding ventrianal shield on integument, JV 4 19 (18 – 21), JV 5 86 (81 – 90), ZV 1 29 (27 – 31), ZV 3 15 (14 – 16); ventrianal shield with a pair of small round pores posteromesad to JV 2, distance between these pores 32 (57 – 64) slightly shorter than distance between JV 2 -JV 2 insertions.

Spermatheca — Calyx saccular 17 (16 – 19) long; atrium u-shaped inserted at base of the calyx. ( Figure 2C ).

Chelicera — Fixed digit 31 (29 – 32) long with 3 teeth and a pilus dentilis; movable digit 31 long with 1 tooth ( Figure 2D ).

Legs — Leg IV ( Figure 2E ) with three pointed macrosetae, SgeIV 78 (72 – 83), StiIV 65 (58 – 70), StIV 78 (75 – 83); legs I, II and III with one macroseta each, SgeIII 45 (40 – 48), SgeII 33 (31 – 34), SgeI 34 (33 – 34); genua and tibiae I-II-III-IV with 10-8-7-7 and 10-7-7-6 setae, respectively.

Specimens examined — Two females, 28 Aug. 2009, soil from a cotton farm, Larestan , Fars, Iran, collector: Fakhrodin Khdempour; eight females , soil, April-Nov. 2009, Marvdasht, Fras, Iran, collector: Hadi Ostovan.

Remarks — The specimens collected in Fars province of Iran show morphological features similar to those of the holotype and re-described specimens ( Congdon 2002; Ferragut et al. 2010; Livshitz and Kuznetsov 1972; Moraes et al. 2007; Papadoulis and Emmanouel 1991 ; Schicha 1983; Schuster and Pritchard 1963; Swirski et al. 1998; Van der Merwe 1968; Wainstein 1960). However, the dorsal setae j 3 and z 4 have longer lengths compare to those of the other populations of P. messor ( Table 1). Wainstein (1960) did not mention the details of chelicerae. In the re-descriptions of P. messor , there is a mixed report of fixed digit of chelicerae of having either 3 (e.g. Livshitz and Kuznetsov 1972) or 4 teeth (e.g. Moraes et al. 2007). The specimens collected in Iran clearly show 3 teeth on fixed digit of chelicerae ( Figure 3 ).

Figures

FIGURE 2: Proprioseiopsis messor (Wainstein) (Female): A – Idiosoma, dorsal view; B – Idiosoma, ventral view; C – Spermathecae; D – Chelicera; E – Leg IV.

FIGURE 3: Chelicerae of Proprioseiopsis messor (Wainstein) (Female) collected in Iran (Fars province).