Arrenurus (Truncaturus) corsicus (E. Angelier, 1951)

Esen, Yunus, Received, Orhan Erman & Online, Published, 2013, A new species of the genus Arrenurus Dugès, 1834 (Acari: Hydrachnidia: Arrenuridae) for the Turkish fauna: Arrenurus (Truncaturus) corsicus (E. Angelier, 1951), Turkish Journal of Zoology 37 (3), pp. 372-375 : 372-373

Arrenurus (Truncaturus) corsicus (E. Angelier, 1951) Material Examined: Bingöl Province, Akpınar village, Mezra stream, 38°52′06″N, 40°29′10″E, 1250 m a.s.l., 26.06.2010 , (2/3/0).

Description: Male: Idiosoma (Figure 1A) elongated, narrowed caudally, and L/W 680–693/370–372, a pair of distinct humps on the cauda (Figures 1A and 1B); anterior margin of idiosoma slightly convex, dorsal furrow extending onto lateral sides of idiosoma, dorsal shield W 315–322. Coxal field (Figure 1C) elongated, anterior coxae rounded, extending beyond anterior idiosoma margin. Genital plate long and wide, not extending to lateral idiosoma margin, genital field W 203–239. Gnathosoma L 103–105; chelicera L 108–112. Palp (Figures 1D and 1E) total L 190–203; dL of palp segments PI–PV: 25, 54–56, 30–34, 52–58, 29–30. PII with a patch of 12–14 hair-like setae medially. IV-L-4 without a spur. Leg swimming setae numbers: II-L-3: 1, II-L-4: 1, II-L-5: 3, III-L-3: 1, III-L-4: 1, III-L-5: 3, IV-L-3: 2, IV-L-4: 4, IV-L-5: 10–11. Leg segments L: I-L-4–6: 97–103/116–120/132–138, IV-L-4–6: 117–120/198–200/180–181.

Female: Idiosoma ( Figure 2A) elongated, L/W 706–812/418–477, anterior margin of idiosoma slightly convex, dorsal shield complete, and L/W 655–702/372–

A C E

D, E A–C

B

Figure 1. Arrenurus (Truncaturus) corsicus male: A) idiosoma, dorsal view; B) idiosoma, lateral view; C) idiosoma,

ventral view; D) palp, medial view; E) palp, lateral view (scale bars = 100 µm).

420. Coxal field ( Figure 2B) similar to male, genital plate short and wide, genital field W 330–365, gonopore L/W 118–120/128–130. Gnathosoma L 110–120; chelicera ( Figure 2C) L 110–112. Palp ( Figure 2D) total L 192–205; dL of palp segments PI–PV: 23–25, 54–57, 30–33, 55–58, 30–31. PII with a patch of 12–14 hair-like setae medially. Swimming setae numbers reduced and IV-L-3–4 without swimming setae; leg swimming setae numbers: II-L-3: 1, II-L-4: 1, II-L-5: 2, III-L-3: 1, III-L-4: 1, III-L-5: 2, IV-L- 5: 3. Leg segments L: I-L-4–6: 103–110/112–120/125–133, IV-L-4–6: 126–133/162–184/170–178.