Mesiotelus tenuissimus (L. Koch, 1866)

Coşar, İ., Danışman, T. & Erdek, M., 2023, The genus Mesiotelus Simon, 1897 (Araneae: Liocranidae) in Turkey, Caucasian Entomological Bulletin 19 (1), pp. 9-13 : 12

Mesiotelus tenuissimus (L. Koch, 1866)

( Figs 17–21 , 22 )

Mikhailov, Fet, 1986: 173, fig. 1; Kovblyuk et al., 2008: 19, figs 6–12; Bosmans et al., 2009: 35, figs 24–28; Bosmans, El-Hennawy, 2018: 101, figs 1, 2; El-Hennawy, 2022 a: 418, figs 2–5.

Material. 1 ♀, Turkey, Kırıkkale Prov., Yahşihan District , 39°53 ʹ 13 ʺ N / 33°27 ʹ 00 ʺ E, 856 m, 5.02.2018 ( T. Danışman) .

Brief description of studied specimen. Total length 5.1. Carapace length 1.9, width 1.6. Abdomen length 3.2, width 1.8. Ocular area length 0.55. Chelicera length 0.9, width 0.45. Sternum length 1.2, width 1 Leg formula IV, I, II, III. Legs: leg I 7.2 (2, 0.9, 1.9, 1.5, 0.9), leg II 6.3 (1.8, 0.7, 1.7, 1.3, 0.8), leg III 5.9 (1.6, 0.6, 1.4, 1.5, 0.8), leg IV 8.7 (2.3, 0.8, 2.2, 2.5, 0.9).

Carapace light yellow, covered with small dark colour hairs and edges dark ( Fig. 19 ). Clypeus narrow and dark yellow ( Fig. 21 ). Chelicerae long, yellow, dorsally with long dark setae ( Fig. 21 ). Sternum light yellow, without setae. Labium and maxillae dark yellow. Abdomen grayish, densely covered with long hairs, with white patterned ( Fig. 20 ). Legs yellow, covered with light hairs ( Fig. 19 ).

Epigyne. Lateral margins of fovea horizontal, margins form an angle of approximately 180° between each other. Spermathecae separated from each other by their diameter. Anterior hood (i.e. anterior pocket) prominent, its width about half of interspermathecal space ( Figs 17, 18 ).

Distribution. North Africa,Europe, Turkey ( Anatolia), Turkmenistan [World Spider Catalog, 2022].

Figures

Figs 12–21. Species of the genus Mesiotelus, females, general view and details of structure. 12–16 – M. scopensis; 17–21 – M. tenuissimus. 12–13 – habitus: 12 – dorsal view, 13 – ventral view; 14, 19, 21 – cephalothorax: 14, 21 – frontal view, 19 – dorsal view; 15–18 – epigyne: 15, 17 – ventral view, 16, 18 – dorsal view; 20 – abdomen, dorsal view. Scale bars: 12–13 – 1 mm; 14, 19–20 – 0.5 mm; 15–18 – 0.1 mm; 21 – 0.2 mm. Рис. 12–21.ВиΑы роΑа Mesiotelus, самки, общий виΑ и ΑетаΛи строения. 12–16 – M. scopensis; 17–21 – M. tenuissimus. 12–13 – габитус: 12 – ΑорсаΛьно, 13 – вентраΛьно; 14, 19, 21 – гоΛовогруΑь: 14, 21 – виΑ спереΑи, 19 – ΑорсаΛьно; 15–18 – эпигина: 15, 17 – вентраΛьно, 16, 18 – ΑорсаΛьно; 20 – брюшко, ΑорсаΛьно. Масштабные Λинейки: 12–13 – 1 мм; 14, 19–20 – 0.5 мм; 15–18 – 0.1 мм; 21 – 0.2 мм.

Fig. 22. Distribution records of Mesiotelus caucasicus (square), M. deltshevi (circle), M. scopensis (black stars; white star is the first record in Turkey), and M. tenuissimus (triangle) in Turkey. Рис. 22. Распространение Mesiotelus caucasicus (кваΑрат), M. deltshevi (круг), M. scopensis (черные звезΑы; беΛая звезΑа – первая нахоΑка в Турции) и M. tenuissimus (треугоΛьник) в Турции.