Paraseiulus talbii (Athias-Henriot)

Abo-Shnaf, Reham I. A. & De, Gilberto J., 2014, Phytoseiid mites (Acari: Phytoseiidae) from Egypt, with new records, descriptions of new species, and a key to species, Zootaxa 3865 (1), pp. 1-71 : 38-39

Paraseiulus talbii (Athias-Henriot)

Typhlodromus talbii Athias-Henriot, 1960b: 75 ; McMurtry, 1977: 22; Chant & Yoshida-Shaul, 1982: 3024; Wu et al., 1997: 170.

Paraseiulus subsoleiger Wainstein, 1962a: 139 . (synonymy by Rowell et al., 1978: 876; Chant & Yoshida-Shaul, 1982: 3025).

Typhlodromus (Neoseiulus) talbii . — Ehara, 1966: 17.

Paraseiulus talbii . — Wainstein & Arutunjan, 1967: 1769; Abbasova, 1972: 11; Beglyarov, 1981: 20; Miedema, 1987: 47; Karg, 1991: 28; 1993: 209; Tuovinen, 1993: 101; Moraes et al., 2004: 301; Guanilo et al., 2008c: 26; Papadoulis et al., 2009: 110; Ferragut et al., 2010: 138; Barbar et al., 2013: 254.

Typhlodromus tetramedius Zaher & Shehata, 1970: 117 . (synonymy by Chant & Yoshida-Shaul, 1982: 3025).

Seiulus amaliae Ragusa & Swirski, 1976: 183 . (synonymy by Chant & Yoshida-Shaul, 1982: 3025).

Paraseiulus (Bawus) talbii . — Wainstein, 1976: 699.

Paraseiulus (Bawus) ostiolatus Athias-Henriot, 1978: 699 . (synonymy by Chant & Yoshida-Shaul, 1982: 3025).

Bawus talbii .— Moraes et al., 1986: 180; Swirski & Amitai, 1990: 117; Swirski et al., 1998: 110.

Female (five specimens).

Dorsal shield strongly reticulate; 412 (392–437) long and 226 (214–239) wide, with 20 pairs of setae. Setae j1 22 (21–23), j3 38 (31–41), j4 31 (28–34), j5 31 (29–34), j6 40 (39–42), J2 41 (39–43), J5 16 (15–19), z2 34 (30–36), z3 38 (34–42), z4 44 (40–47), z5 30 (29–31), z6 36 (32–40), Z3 40 (37–44), Z4 49 (45–52), Z5 51 (49–55), s4 47 (42–49), s6 43 (40–47), S2 47 (41–50), S4 46 (44–47), S5 47 (43–49), r3 41 (39– 44), R1 37 (34–42). Dorsal setae smooth, except Z5, serrate. Peritreme extending to region between j1 and j3.

Venter. Sternal shield smooth, with two pairs of setae and two pairs of lyrifissures. Distances between st1–st1 53 (52–55), st2–st2 64 (61–68), st3–st3 95 (81–103), st4–st4 77 (86–120). Genital shield smooth, with lateral extensions; distance between st5–st5 72 (68–73). Ventrianal shield vase-shaped, smooth, with few striae; 140 (133–143) long, 66 (60–70) wide at ZV2 level and 73 (70–78) wide at level of anus; with two pairs of pre-anal setae and no pores. Seta JV5 51 (49–52). Ventral setae smooth. Two pairs of metapodal plates.

Spermatheca. Calyx of spermatheca cup-shaped, 14 (13–16) long.

Gnathosoma. Corniculi distally convergent; basal width of corniculus 5, distance between bases of corniculi 7. Movable cheliceral digit 22 (20–23) long, with one tooth; fixed digit 22 (21–23) long, with three teeth.

Legs. Macroseta sharp-tipped: St IV 33 (29–36); chaetotaxy of genu II 2, 2/1, 2/0, 1; genu III 1, 2/1, 2/0, 1.

Male (one specimen).

Dorsal shield pattern as in female; 268 long and 169 wide. Setae j1 17, j3 27, j4 18, j5 20, j6 30, J2 30, J5 11, z2 25, z3 29, z4 33, z5 23, z6 24, Z3 28, Z4 29, Z5 41, s4 35, s6 31, S2 35, S4 38, S5 38, r3 28, R1 26. Dorsal setae smooth, except Z5, serrate. Peritreme extending to region between j3 and z2.

Venter. Distances between st1–st1 44, st2–st2 51, st3–st3 60, st4–st4 51, st5–st5 41. Ventrianal shield subtriangular, with few striae; 113 long and 139 wide at anterior corners; with two pairs of pre-anal setae and no pores. Seta JV5 34.

Gnathosoma. Movable cheliceral digit 19 long, with one tooth; fixed digit 20 long, with three teeth. Shaft of spermatodactyl 24 long.

Legs. Macroseta sharp-tipped: St IV 25; chaetotaxy of genua II and III as in female.

Specimens examined. Two females from mango leaves, at Fayoum governorate, February 1980 (coll. M.A. Zaher); one male, formerly identified as Typhlodromus tetramedius by M.A. Zaher, from same substrate, at Giza governorate, November 1978 (coll. M.A. Zaher); one female from same substrate and locality, December 1979 (coll. M.A. Zaher); one female from C. variegatum leaves, at Orman Botanical Garden, Giza governorate, June 2012 (coll. R.I.A. Abo-Shnaf); one female from mango leaves, at Ismailia governorate, November 1978 (coll. M.A. Zaher).

Previous records from Egypt. as T. talbii —Giza governorate ( El-Badry, 1967a); as T. tetramedius —Fayoum and Giza governorates ( Zaher & Shehata, 1970; Zaher, 1986; Romeih et al., 2010b); Gharbia governorate ( Zaher & Shehata, 1970); Ismailia governorate ( Zaher, 1986); unspecified governorate ( Kandeel & Nassar, 1986).

Remarks. Typhlodromus talbii was originally described from the holotype female and one paratype male collected in Algeria. The original description was quite detailed, with illustrations and setal measurements; complementary descriptions were listed by Demite et al. (2014). Typhlodromus tetramedius was originally described from the holotype female, seven paratype females and three paratype males collected from unspecified localities in Fayoum and Giza governorates; Samannoud (middle of Nile Delta), Gharbia governorate; the Faculty of Agriculture Farm, Cairo University, Giza governorate, Egypt. The original description was detailed, with illustrations and setal measurements. The longer setae of the females examined are 1.2–1.5 times as long as the corresponding measurements provided by Chant & Yoshida-Shaul (1982) for one of the syntypes of P. talbii . This difference could be due to the larger size of specimens examined in this study. Measurements of the specimens examined are also close to those provided by Zaher & Shehata (1970) for T. tetramedius .