Eviphis ostrinus (C.L. Koch, 1839)

Özbek, Hasan Hüseyin, 2023, First record of the genus Eviphis Berlese (Parasitiformes: Eviphididae) from Türkiye, with some notes on the eviphidid mites in Türkiye, Acarological Studies 5 (1), pp. 17-20 : 17-18

Eviphis ostrinus (C.L. Koch, 1839) ( Figures 1-11 )

Eviphis ostrinus — Berlese, 1903: 242; Willmann, 1956: 225; Shoemake, 1970: 51; Bregetova, 1977: 559; Karg, 1993: 94; Kontschán, 2004: 230; Mašán and Halliday, 2010: 54 .

Specimens examined

15 females, Örümcek Forest, Kürtün, Gümüşhane , Türkiye, 40°39'N 39°01'E, 1455 m a.s.l., 1 July 2009, moss and lichen on spruce tree ; 20 females, Köse , Gümüşhane, Türkiye, 40°16'N 39°38'E, 1856 m a.s.l., 14 July 2009, litter under Salix sp .; 21 females, Tokat, Taşlıca Village , 40° 44' N, 39° 03' E, 1708 m a.s.l., 24 November 2013, under litter of Abies sp .; 17 females, Bayburt, Sarımeşe Village , 40°27'N 40°18'E, 1655 m a.s.l., 17 June 2014, in moss ; 18 females, Erzurum, Uzunoluk Forest , no date for GPS koordinate, altitue, 27 March 2010, in litter ; 3 females, Trabzon, Uzungöl lake , 40°36'N 40°18'E, 1782 m a.s.l., 8 June 2015, under litter of Picea sp ., 2 females, Bayburt, GenÇosman Village , 40°09'N 40°20'E, 1745 m a.s.l., 18 April 2014, in moss ; 13 females, Gümüşhane, Kürtün , 40°39'N 38°01'E, 1413 m a.s.l., 28 October 2013, in moss on a stone near stream ; one female, Gümüşhane, Kızılali Wold , 40°48'N 39°03'E, 1270 m a.s.l., 13 October 2013, in litter ; one female, Gümüşhane, Kürtün, Taşlıca Village , 40°44'N 39°03'E, 1708 m a.s.l., 24 November 2013, under litter of Abies sp .; 3 females, Gümüşhane, Kürtün, Örümcek Forest , 40°44'N 39°03'E, 1740 m a.s.l., 24 November 2013, in moss and soil .

Description (n=25)

Dorsum ( Figs 1 , 6 ). Dorsal shield 520-550 long, 410-440 wide at the level widest point, hemispherical, bearing 30 pairs of simple and pointed setae. Marginal setae distinctly longer than other dorsal setae, except for setae j2. S3 longest dorsal setae, 55-65 long, setae z1 slim and microsetae.

Venter ( Figs 2 , 7 ). Pre-sternal shield close to sternal shield and weakly sclerotized. Sternal shield 100-120 long, 75- 90 wide at the level of coxae II, bearing three pairs of needle-like setae and two pairs of pores; surface of the shield without any sculptural pattern. In some specimens, a transverse line between st1 and st2 visible, in most of them invisible this transverse line. Anal shield 95-120 long, 105-130 wide, and subtriangular. In most specimens, metapodal platelets abutting posterior parts of peritrematal shield and rarely fused with peritrematal shields ( Figs 8, 9 ).

Gnathosoma. Ventral surface of gnathosoma as in Figure 3 , epistome with elongate central projection ( Fig. 4 ) and cheliceral segments long and thin, cheliceral digits slender, movable digit with two small subdistal teeth ( Figs 5 , 10 ).

Spermathecal apparatus. Sacculus foemineus well developed, sclerotized, and large ( Fig. 11 ).

Legs. Leg chaetotaxy is usual for the genus ( Mašán and Halliday, 2010).

Distribution

It is known in Europe and Asia ( Mašán and Halliday, 2010).

Figures

Figures 1-2. Eviphis ostrinus (female) – 1. Dorsal view, 2. Ventral view.

Figures 3-5. Eviphis ostrinus (female) – 3. Gnathosoma, 4. Epistome, 5. Chelicera.

Figures 6-11. Eviphis ostrinus (female). 6. Dorsal view, 7. Ventral view, 8-9. Variations of the posterior end of peritrematal shields, 10. Chelicera; 11. Sacculus foemineus.