Rhinoppia (Rhinoppia) alidagiensis, Toluk, 2016

Toluk, A., 2016, A new species of the genus Rhinoppia (Acari, Oribatida, Oppiidae) from Turkey, Acarologia 56 (1), pp. 91-98 : 92

Rhinoppia (Rhinoppia) alidagiensis n. sp.

( Figures 1-4 )

Diagnosis — Rostrum tridentate. Lamellar and interlamellar setae smooth. Bothridial setae fusiform, distal half being distinctly expanded, with short setae unilaterally. Notogaster elongate oval. Six pairs of genital setae fine and short.

Measurements — Body length: 308 – 336 (holotype: 332) µm, body width: 118 – 140 (holotype: 134) µm (n=13).

Prodorsum ( Figures 1A , 2 A-D) — Rostrum tridentate; separated by 2 deep incisions; dents rounded. Rostral setae (ro) smooth, 20 µm in length. Lamellar setae (le) thin, smooth, 10 µm in length. Interlamellar setae (in) thick, 12 µm in length. Lamellar setae nearer to interlamellar than to rostral setae. Distance between le -le shorter than that of in - in. Bothridia cup shaped, with laterally-oriented opening. Sensilli fusiform, distal half distinctly expanded, pectinate unilaterally.

Notogaster ( Figures 1A , 2A ) — Elongate oval, longer than wide, ratio 2:1. Ten pairs of smooth notogastral setae present. Setae c2 20 µm long. Setae la, lm, and lp about 20, 12, and 4 µm long, respectively. Setae of p series 12 µm long.

Ventral side ( Figure 1B ) — Length of subcapitulum 72 µm, width 48 µm. Setae h 2 µm in length. Distance between h-h 16 µm. Prodorsum widest at level of pedotectum I. Epimeral borders easily visible and strongly chitinized. Polygonal network ornamented at epimeres 1, 2 and 3+4. Epimeral setal formula 3-1-3-3. Genital plates 36 µm in length, 40 µm in width, with six pairs of setae. Anal plates 52 µm in length, 48 µm in width, with two pairs of setae. Distance between genital and anal plates 66 µm. One pair of aggenital, three pairs of adanal setae. Lyrifissures iad paraanally, adanal setae ad1 postanally, ad2 paraanally, ad3 preanally situated.

Legs ( Figures 3-4 ) — Formula of leg setation (trochanter to tarsus): I (1-5-2+1-4+2-20+2); II (1- 4-1+1-4+1-15+2); III (1-3-1+1-3+1-12); IV (1-2-1+1- 3+1-10). Structure and setation of legs as shown in Figs. 3 and 4 .

Etymology — The specific name alidagiensis is named after the locality, Ali Mountain (Ali Da ˘gı), Kayseri, Turkey where the new species was found.

Type material — Holotype (female ZMEU: 266) and six paratypes (all females, ZMEU: 267-272), soil, 38°40.1’N, 35°32.46’E, 1450 m. a.s.l., five paratypes (all females, ZMEU: 273-277), 38°40.1’N, 35°32. 46’E, 1740 m. a.s.l., two of them were mounted on aluminum stubs and gold-coated for scanning electron microscopy, 5 Apr. 2010, Ali Mountain , Kayseri, Turkey . Holotype and eleven paratypes are deposited in the Acarological Collection of the Zoological Museum, Erciyes University, Kayseri, Turkey ( ZMEU); all specimens are preserved in 70 % ethanol .

Remarks — Among the known species of the subgenus Rhinoppia (Rhinoppia) , the new species with tridentate rostrum resembles R. (R.) vera (Mihelˇciˇc, 1956), R. (R.) nasuta ( Moritz, 1965) , R. (R.) tridentata Subías and Minguez, 1985 , R. (R.) ordunensis (Iturrondobeitia and Saloaea, 1988) , R. (R.) centrodentata Gordeeva and Niemi, 1990 , R. (R.) pinsapi ( Arillo and Subías, 1996) , R. (R.) samaina Mahunka, 2001 , R. (R.) epilata ( Miko, 2006) , R. (R.) elifae Toluk, Ayyıldız and Subías, 2009 and R. (R.) undulata ( Mahunka and Mahunka-Papp, 2010) (Mihelˇciˇc, 1956; Moritz, 1965; Subías and Minguez, 1985; Iturrondobeitia and Saloaea, 1988; Gordeeva and Niemi, 1990; Khanbekian and Gordeeva, 1991; Arillo and Subías, 1996; Mahunka, 2001; Miko, 2006; Toluk, Ayyıldız and Subías, 2009; Mahunka and Mahunka- Papp, 2010). The differentiating characters of these species are given in Table 1.

Figures

FIGURE 1: Rhinoppia (Rhinoppia) alidagiensis n. sp.: A – Dorsal view; B – Ventral view (scale bar for all figures = 100 µm).

FIGURE 2: Rhinoppia (Rhinoppia) alidagiensis n. sp.: A – Dorsal view; B – Prodorsum; C – Rostrum; D – Sensillus.

FIGURE 3: Rhinoppia (Rhinoppia) alidagiensis n. sp.: A – Leg I; B – Leg II (scale bar for all figures = 40 µm).

FIGURE 4: Rhinoppia (Rhinoppia) alidagiensis n. sp.: A – Leg III; B – Leg IV (scale bar for all figures = 40 µm).