Typhlodromus (Typhlodromus) papadoulisi Döker & Kazak, 2017

Döker, İsmail, Kazak, Cengiz & Karut, Kamil, 2017, Three new species of the family Phytoseiidae (Acari: Mesostigmata) from Turkey, Zootaxa 4243 (3), pp. 565-576 : 571-574

Typhlodromus (Typhlodromus) papadoulisi Döker & Kazak sp. nov.

( Figures 11–16 )

Diagnosis. This new species belongs to the pyri species group of Chant & Yoshida-Shaul (1987). The dorsal shield reticulated posteriorly, bearing three pairs of solenostomes all dorsal setae are smooth except for Z4 and Z5; peritreme extending to level of between setae j1–j3; sternal shield with two pairs of setae; ventrianal shield with four pairs of pre-anal setae and without solenostome; fixed digit of chelicera with four teeth and movable digit with one tooth; calyx of spermatheca saccular and atrium incorporated with the calyx; genu II with seven setae.

Female (n=3). Dorsum ( Figure 11 ) Dorsal setal pattern 12A:7A (r3 and R1 off shield). Dorsal shield oval with waist at level of R1, sclerotised, reticulated posteriorly and bearing three pairs of solenostomes (gd2, gd6 and gd9), ten pairs of small pores (sensilla). Muscle marks (sigilla) visible, mostly on podosoma, length of dorsal shield (j1– J5) 349 (348–350), width (distance between bases of s4) 174 (173–175), width (distance between bases of S2) 186 (185–188). All dorsal setae smooth except for Z4 and Z5, which are slightly serrated. Measurements of dorsal setae as follows: j1 26 (25–28), j3 29 (28–30), j4 19 (18–20), j5 19 (18–20), j6 19 (18–20), J2 21 (20–23), J5 6 (5–7), z2 19 (18–20), z3 24 (23–25), z4 24 (23–25), z5 19 (18–20), Z4 46 (45–48), Z5 69 (68–70), s4 29 (28–30), s6 34 (33– 35), S2 34 (33–35), S4 39 (38–40), r3 29 (28–30), and R1 27 (26–28). Peritreme extending to level of between setae j1–j3, close to j1.

Venter ( Figure 12 ). Ventral setal pattern 15:JV:ZV. Sternal shield smooth, lightly sclerotised, with two pairs of setae (ST1 and ST2) and two pairs of pores (pst1 and pst2); length (ST1–ST2) 35 (36–38), width (distance between setae ST2) 56 (54–58). Sternal setae ST3 on separate platelets; metasternal setae ST4 and a pair of pores (pst3) on metasternal shields. Genital shield smooth; width at level of genital setae (ST5) 61 (60–63). Ventrianal shield pentagonal smooth, without pre-anal solenostomes, with four pairs of pre-anal setae (JV1, JV2, JV3, and ZV2), a pair of para-anal (Pa) and a post-anal setae (Pst), with muscle marks posterolaterally. Length of ventrianal shield 114 (113–115), width 102 (101–103). Setae JV4, JV5, ZV1, ZV3, and five pairs of pores on integument surrounding ventrianal shield. Setae JV5 smooth, much longer than other ventral setae, 54 (53–55) in length.

Chelicera ( Figure 13 ). Fixed digit 29 (28–30) long with four teeth and pilus dentilis; movable digit 29 (28–30) long with one tooth.

Spermatheca ( Figure 14 ). Calyx saccular 22 (21–23) in length, flaring distally; atrium incorporated with calyx; major duct broad.

Legs ( Figure 15 ). Length of legs (base of coxae to base of claws): leg I 318 (315–320); leg II 278 (276–280); leg III 256 (254–258); leg IV 358 (356–360). GeII, GeIII, and GeIV with seven, seven and seven setae, respectively. Macrosetae GeIV, TiIV, and StIV, 25 (24–26), 25 (24–26) and 51 (50–53) long, respectively. StIV knobbed apically.

Male. Unknown

Type material. Holotype female and two paratype females, Karaisali , Adana Province, on Salix babylonica (Salicaceae) 21 June 2015 (37°14'00"N, 35°00'47"E, 198 metres above sea level).

Etymology. This species is named for Prof. Dr. Georgios Th. Papadoulis for his great contribution to the systematics of the family Phytoseiidae , and his encouragement to the senior author to study taxonomy of Phytoseiidae .

Depository. The holotype female and two paratype females are deposited in the mite collection of the Acarology Laboratory , Department of Plant Protection, Çukurova University, Adana, Turkey .

Remarks. By having three pairs of solenostomes (absence of gd8) on the dorsal shield, four pairs of pre-anal setae on ventrianal shield and absence of pre-anal pores, this new species is similar to T. (T.) baccettii Lombardini, 1960 , T. (T.) kykladiticus Papadoulis & Emmanouel, 1993 , T. (T.) leclanti Kreiter et al., 2016 , T. (T.) phylaktioticus Papadoulis & Emmanouel, 1990 , T. (T.) pyri Scheuten, 1857 and T. (T.) tubifer Wainstein, 1961 . Differences between Typhlodromus (T.) papadoulisi and related species are given in Table 3 . It should also be noted that this new species appears close to T. (T.) phialatus Athias-Henriot, 1960 which is known for the Turkish fauna ( Döker et al., 2014). However, T. (T.) phialatus bears four pairs of solenostomes on the dorsal shield while the new species has three pairs. In T. (T.) phialatus , the atrium of the spermatheca is not incorporated with the calyx, the atrium small knobbed, there is only one macrosetae on leg IV, Z5 (54) and StIV (38), and only two apical teeth on the fixed digit of the chelicera ( Chant & Yoshida-Shaul 1987; Papadoulis et al. 2009). In contrast to T. (T.) phialatus , in the new species, the atrium of the spermatheca is incorporated with the calyx, and there are three macrosetae on leg IV, Z5 (69) and StIV (51) and four teeth on the fixed digit of the chelicera.

phylaktioticus e pyri f tubifer g a from three specimens, b from Chant & Yoshida-Shaul, 1987, c from Papadoulis & Emmanouel, 1993, d from Tixier et al., 2016, e from Papadoulis & Emmanouel, 1990, f; g from Chant & Yoshida-Shaul, 1987.

Figures

FIGURES 11 – 15. Typhlodromus (Typhlodromus) papadoulisi Döker & Kazak sp. nov., female. 11. Dorsal shield; 12. Ventral idiosoma; 13. Chelicera; 14. Spermatheca; 15. Leg IV; 16 Genu II. Scale bar = 100 µm for 11, 12, 30 µm for 13, 14, 60 µm for 15.

FIGURE 16. Leg IV of Typhlodromus (Typhlodromus) papadoulisi Döker & Kazak sp. nov. (female paratype)

Tables

TABLE 3. Differences in diagnostic characters between Typhlodromus (Typhlodromus) papadoulisi Döker & Kazak sp. nov. and related species.

	papadoulisi a	baccettii b	kykladiticus c	leclanti d
No of setae on Genu II	7	7	8	7
No of teeth on MD	1	1	1	1
No of Teeth on FD	4	3	2	2 or 3
Reticulation on VAS	Smooth	Striated	Smooth	Reticulated
Spermatheca	Saccular, atrium incorporated with calyx	Cub-shaped, atrium enlarged, with a short neck	Cup-shaped, atrium incorporated with calyx	Cup-shaped atrium attached to the calyx without neck
Peritreme	j1–j3 close to j1	j3	z2–z3	j1–j3
No of macrosetae on leg IV	3	1	1	1
continued.