Typhlodromus (Anthoseius) kerkirae Swirski & Ragusa, 1976

Faraji, Farid & Hoekstra, Paul H., 2021, Some new species records of the predatory mite family Phytoseiidae (Acari: Mesostigmata) from The Netherlands, Soil Organisms 93 (1), pp. 35-57 : 49-51

Typhlodromus (Anthoseius) kerkirae Swirski & Ragusa, 1976

( Fig. 10 : A–E)

Female– Six specimens measured.

Idiosomal setal pattern: 12A:8A/JV:ZV.

Dorsal idiosoma ( Fig. 10A ) – Dorsal shield reticulated entirely and sclerotized 344 (328–358) long and 183 (180– 188) wide at j 6 level, with 20 pairs of dorsal setae (r 3 and R 1 included); dorsal shield setae smooth, except for Z 4 and Z 5, slightly serrated; lengths: j 1 22 (22–24), j 3 25 (24–26), j 4 16 (15–16), j 5 17 (16–17), j 6 19 (18–20), J 2 23 (22–24), J 5 13 (12–14), z 2 19 (19–20), z 3 25 (23–27), z 4 25 (23–26), z 5 17, Z 4 33 (32–35), Z 5 54 (50–55), s 4 30 (29–32), s 6 31 (30–33), S 2 34 (32–35), S 4 33 (31–35), S5 30 (28–33); setae r 3 27 (26–29) and R 1 25 (24–26) on lateral integument; dorsal shield with 5 pairs of solenostomes (gd 2, gd 4, gd 6, gd 8, gd 9) and 15 pairs of small poroids.

Peritreme – Extending to the level of setae j 1 ( Fig. 10A ).

Ventral idiosoma ( Fig. 10B ) – Sternal shield wider than long, smooth, posterior margin irregular, 50 (48–51) long, 63 (62–94) wide at level of setae ST 2, two pairs of setae and two pairs of pores (iv 1 and iv 2), ST 1 28–30, ST 2 27–29, ST 3 28; distances between ST 1 –ST 2 32 (30–35), ST 1 –ST 1 52 (51–53) and ST 2 –ST 2 54 (53–55); ST 3 and ST 4 on separate platelets, ST 4 27–28, pore (iv 3) located on integument between ST 3 and ST 4; a v-shaped plate present posterior to sternal shield and between metasternal shields; genital shield smooth width at widest point 62 (60–65), ST 5 24–25; two pairs of relatively narrow metapodal shields, primary 31 (30–33) long and accessory 13–14 long; ventrianal shield pentagonal ( Fig. 10B ), with some horizontal striae, length 106 (103–109), width at level of setae ZV 2, 91 (87–95), and width at level of paranal setae 79 (74–81); with four pairs of preanal setae (JV 1, JV 2 and JV 3 20–22, ZV 2 33); four pairs of setae surrounding ventrianal shield on integument (JV 4 17, JV 5 41 (38–45), ZV 1 22–24, ZV 3 13–14), five pairs of pores and one pair of small platelets surrounding ventrianal shield. Ventrianal shield with a pair of small round pores (gv 3) posteromesad to JV 2, distance between these pores 33 (32–34).

Spermatheca – Calyx cup-shaped 13 (12–14) long, 9–11 in diameter at the middle part of the calyx; atrium c-shaped incorporated in the calyx ( Fig. 10C ).

Chelicera – Fixed digit 25–27 long with 4 teeth and a pilus dentilis; movable digit 27–28 long with 1 tooth ( Fig. 10D ).

Legs – Leg IV ( Fig. 10E ) with one pointed macroseta, StIV 31 (30–32); legs I, II and III with no recognizable macrosetae; length of legs from the base of coxae to the tip of claws: leg I 304 (298–310), leg II 250 (248–251), leg III 246 (243–249), leg IV 326 (323–329); chaetotactic formulae of genua and tibiae I–II–III–IV with 10 (2-2/1, 2/1-2) – 7 (2-2/0, 2/0-1) – 7 (1-2/1, 2/0-1) – 7 (1-2/0, 2/1-1) and 10 (2-2/1, 2/1-2) – 7 (1-2/1, 1/1-1) – 7 (1-2/1, 1/1-1) – 6 (1-1/0, 2/1-1) setae respectively.

Distribution – Croatia, France, Greece, Iran, Italy, Spain, The Netherlands (this study) and Turkey.

Specimen examined – Fourteen females, unidentified weeds from a grassland, Sinderhoeve , near Renkum, The Netherlands (51°59’52.9”N 5°45’15.9”E), collector: Frank Bakker.

Remarks – This is a new species record for Dutch fauna. All the measurements and morphological characteristics of the specimens collected in The Netherlands conform to the original description and re-description provided by Faraji et al. (2011) based on French specimens.

Figures

Figure 10. Typhlodromus (Anthoseius) kerkirae Swirski & Ragusa (Female): (A) Idiosoma, dorsal view; (B) Idiosoma, ventral view; (C) Spermathecae; (D) Chelicera; (E) Leg IV.