Raphignathus Dugés, 1834

Dönel, Güldem & Doğan, Salih, 2013, Two new mite species of the genus Raphignathus Dugés (Acari: Raphignathidae) from Turkey, Turkish Journal of Zoology 37 (2), pp. 179-183 : 179-181

Genus Raphignathus Dugés, 1834

Type species Raphignathus ruberrimus Dugés, 1834 Dorsal podosoma with 3 shields, 1 median and 2 lateral. Opisthosoma with a large shield. Dorsal shields somewhat fused in males. One pair of eyes on lateral shields. Dorsum with 12 pairs of setae. Two pairs of aggenital setae; genital shield with 3 or 4 pairs of setae. Anal shield with 3 pairs of setae. Genital and anal opening fused, with aedeagus in male. Coxae I–IV contiguous. Cheliceral bases fused to form a conical stylophore; peritremes arising from midbasal part of stylophore, projecting to anterior margin of idiosoma; palptibial claw small; subcapitulum with 2 pairs of subcapitular setae and 2 pairs of adoral setae ( Fan and Zhang, 2005; Akyol and Koç, 2006; Dönel and Doğan, 2011). 3.1. Raphignathus quadrigeminus sp. nov.

Holotype. Female ( Figure 1 ).

Length of body 350, width 190.

Dorsum. Prodorsum with 1 median and 2 lateral shields separated by striae, without small shields posterior to median prodorsal shield. Median shield bearing 3 pairs of setae (vi, sci, c 1). Lateral shields bearing 3 pairs of setae (ve, sce, c 2), 1 pair of eyes, and 1 pair of cupules (ia). Opisthosomal shield with 3 pairs of setae and 2 pairs of cupules (ip and ih). Setae h 3 and 1 pair of cupules (ih) situated on ventral extension of opisthosomal shield; setae d 1, e 1, f 1, and 1 pair of cupules (im) located on the interscutal membrane. All dorsal shields punctuated. Body surface striated between propodosomal and opisthosomal shields. Dorsal setae setiform.

Dimensions of setae as follows: vi: 27; ve: 30; sci: 20; sce: 20; c 1: 20; c 2: 23; d 1: 15; e 1: 23; f 1: 25; h 1: 20; h 2: 20; h 3: 15; vi–vi: 20; ve–c 2: 55; vi–sci: 35; sci–sci: 40; ve–sce: 30; c 2 – sce: 40; c 1 – c 1: 13; d 1 – d 1: 55; d 1 – e 1: 30; e 1 – e 1: 65; f 1 – f 1: 55; f 1 – h 1: 30; h 1 – h 1: 27; h 2 – h 2: 35; h 1 – h 2: 30.

Venter. With 2 pairs of coxisternal shields, 1 pair between coxae I and II, 1 pair between coxae III and IV. Anogenital area with 2 pairs of aggenital setae (ag 1 – 2) and 4 pairs of genital setae (g 1 – 4). Anal shield with 3 pairs of anal setae (ps 1 – 3). All ventral shields punctuated.

Legs. Leg I: 240; leg II: 195; leg III: 200; leg IV: 240. Setae and solenidia (in parentheses) on leg segments as follows: coxae 2–2–2–1; trochanters 1–1–2–1; femora 6–5–3–3; genua 6(κ)–6(κ)–4–4; tibiae 6(ϕρ)–6(ϕρ)–6(ϕρ)–5(ϕρ); tarsi 21(ϕρ,ω)–16(ω)–14(ω)–13.

Gnathosoma. Palp 100 long; 5-segmented; setal formula (from trochanters to tarsi) 0–2–2–3 + 1 claw–4 + 1ω + 4 eupathidia. Length of gnathosoma 90. Ventral with 2 pairs of adoral setae (ro 1–2), 2 pairs of subcapitular setae. Length of subcapitular setae as follows: m: 18; n: 20; m–m: 23; n–n: 15.

Adult male and other immature stages. Unknown.

Type material. Holotype female from decayed bark of Quercus sp. , 40°34′42″N, 36°46′36″E, 735 m, Niksar , Tokat, Turkey, 30 September 2008.

Etymology. The name of this species is the Latin compound word “ quadrigeminus ”, meaning 4 pairs, because of the 4 pairs of genital setae.

Remarks. The new species is similar to Raphignathus karabagiensis Akyol and Koç , R. saboorii Ghorbani and Bagheri , and R. sceptrum Chaudhri, Akbar, and Rasool in having 4 pairs of genital setae and 2 setae on the palp femur ( Chaudhri et al., 1979; Akyol and Koç, 2006; Ghorbani et al., 2011). It can be distinguished from them by the following combination of characters: no small shields behind the anteromedian propodosomal shield; 3 pairs of setae on interscutal membrane; coxisternal shields present. Differences between the new and related species are given in the Table.

3.2. Raphignathus koseiensis sp. nov.

Holotype. Female ( Figure 2 ).

Length of body 407, width 220.

Dorsum. Prodorsum with 1 median and 2 lateral shields separated by striae, without small shields posterior median prodorsal shield. Opisthosoma with a large opisthosomal shield. Median shield bearing 3 pairs of setae. Lateral shields bearing 3 pairs of setae, 1 pair of eyes, and 1 pair of cupules (ia). Opisthosomal shield with 5 pairs of setae and 2 pairs of cupules (ip and ih). Setae h 3 situated on ventral extension of opisthosomal shield; setae d 1 and 1 pair of cupules (im) located on the interscutal membrane. All dorsal shields punctuated. Body surface striated between propodosomal and opisthosomal shields. Dorsal setae setiform. Dimensions of setae as follows: vi: 23; ve: 25; sci: 20; sce: 23; c 1: 20; c 2: 23; d 1: 23; e 1: 18; f 1: 25; h 1: 20; h 2: 18; h 3: 18; vi–vi: 25; ve–c 2: 53; vi–sci: 40; sci–sci: 30; ve–sce: 20; c 2 –sce: 43; c 1 –c 1: 15; d 1 –d 1: 77; e 1 –e 1: 80; f 1 –f 1: 33; f 1 –h 1: 25; h 1 –h 1: 25; h 2 –h 2: 43; h 1 –h 2: 28.

Venter. With 2 pairs of coxisternal shields, 1 pair between coxae I and II, 1 pair between coxae III and IV. Anogenital area with 2 pairs of aggenital setae (ag 1–2) and 4 pairs of genital setae (g 1–4). Anal shield with 3 pairs of anal setae (ps 1–3). Cupules ih lateral to genital aperture. All ventral shields punctuated.

Legs. Leg I: 300; leg II: 265; leg III: 290; leg IV: 318. Setae and solenidia (in parentheses) on leg segments as follows: coxae 2–2–2–1; trochanters 1–1–2–1; femora 6–6–4–4; genua 6(κ)–6(κ)–4–4; tibiae 7(ϕ,ϕρ)–6(ϕρ)–6(ϕρ)–5(ϕρ); tarsi 21(ϕρ,ω)–16(ω)–14(ω)–13.

Gnathosoma. Palp 100 long; 5-segmented; setal formula (from trochanters to tarsi) 0–3–2–3 + 1 claw–4 + 1ω + 4 eupathidia. Length of gnathosoma 87. Ventral with 2 pairs of adoral setae (ro 1–2), 2 pairs of subcapitular setae. Length of subcapitular setae as follows; m: 20; n: 23; m–m: 22; n–n: 35.

Adult male and other immature stages. Unknown.

Type material. Holotype female from litter and moss, 40°17′56″N, 39°34′65″E, 1877 m, Köse Mountain , Gümüşhane, Turkey, 16 May 2009.

Etymology. The name of this new species, “ koseiensis ”, is from the type locality, Köse Mountain.

Remarks. The new species resembles Raphignathus karabagiensis Akyol and Koç , R. saboorii Ghorbani and Bagheri , and R. sceptrum Chaudhri, Akbar, and Rasool by having 4 pairs of genital setae ( Chaudhri et al., 1979; Akyol and Koç, 2006; Ghorbani et al., 2011). It can be distinguished from them by 1 pair of setae on the interscutal membrane and 3 pairs of setae on the palp femur. The comparison of the new and related species has been given in the Table.

Figures

Figure 1. Raphignathus quadrigeminus sp. nov. female: A) dorsal view; B) palp; C) ventral view; D) leg I; E) leg II; F) leg III; G) leg IV.

Figure 2. Raphignathus koseiensis sp. nov. female: A) dorsal view; B) palp; C) ventral view; D) leg I; E) leg II; F) leg III; G) leg IV.