Arrenurus (Arrenurus) ortali Smit, 2000

Smit, H. & Pesic, V., 2010, New Species Of Water Mites From Oman, With Some Zoogeographical Notes (Acari: Hydrachnidia), Acarologia 50 (2), pp. 151-195 : 191

Arrenurus (Arrenurus) ortali Smit, 2000

( Figure 30 )

Type material — Holotype male, Ein Yirka , Sinai, Israel, 21-viii-1969, leg. Margalith ( ZMAN!).

Other material — 1/4/0, Wadi Hanna , Oman, 17°03.236 N 54°36.489 E, 4-xi-2008 .

Description

Male — Described in Smit et al. (2000). The male from Oman is slightly larger than the types (given in parentheses): Idiosoma 1089 (1038-1057) long and 664 (660-669) wide. Following the original description the petiole should have grooves, but in fact these are short, stiff curved setae .

Female — Idiosoma greenish-brownish, L 1085 (1049-1175), W 923 (915-1021). Anterior margin of idiosoma convex. Dorsal shield complete, L 842 (810-899), W 632 (624-688). Cx-I extending beyond anterior margin of idiosoma ( Fig. 30 ). Medial margin of Cx-IV longer than medial margin of Cx- III. Medial distance of Cx-IV longer than width of one genital valve. Gonopore L 136, W 154, genital valves with very small sclerotized patches. Genital plates tapering laterally, directed perpendicularly towards lateral idiosoma margin. Palp: total L 384; L: P-1, 46; P-2, 102; P-3, 66; P-4, 106; P-5, 64; P-2 anteroventrally with three setae (as in male), more anterodorsally one more seta and dorsal margin with three setae. L of I-Leg-4-6: 156, 166, 144. L of IV-Leg- 4-5: 208, 192. Third and fourth legs with numerous swimming setae. Claws of legs with large clawlet and claw blade.

Remarks — The female was not known before (but see note at the preceding species). Previously known from the Sinai ( Israel, nowadays Egypt) and the Negev ( Israel) ( Smit et al. 2000).

Figures

FIGURE 30: Arrenurus ortali Smit, female: idiosoma, ventral view. Scale bar = 200 µm.