Kritaturus (Kritaturus) sornus Cook, 1983

K, Harry Smit & PešićK, Vladimir, 2024, New records of notoaturine water mites from New Zealand, with the description of five new species (Acari: Hydrachnidia: Notoaturinae), Acarologia 64 (2), pp. 499-524 : 502-504

Kritaturus (Kritaturus) sornus Cook, 1983

Figure 2

New records — South Island. 1/2/0, Longbeach Creek at track to Koropuku Falls, Catlins Forest Park, 46°34.704′ S, 169°13.166′ E, alt. 95 m asl, 7 Febr. 2023, one female dissected and slide mounted (RMNH). 0/1/0, Matai stream downstream falls, Catlins Forest Park, 46°30.185′

S, 169°29.288′ E, alt. 134 m asl, 7 Febr. 2023.

Remarks — Thus far, the female was unknown, and therefore a description is given below.

Description. Female — Idiosoma dorsally 370 long and 300 wide, ventrally 409 long. Integumental and eye pigment present. Dorsal shield typical for the genus Kritaturus , 331 long and 281 wide; unpaired anteromedial plate 145 long and 215 wide; unpaired posteromedial plate nearly square, 188 long and 188 wide; anterolateral platelet 153 long, posterolateral platelet 125 long; laterodorsal platelets with longitudinal lines ( Figure 2A ); ornamentation as showed in Figure 2B . Cx-I relatively broad and projecting, with tips more or less rounded, gnathosomal bay 95 long; glandularia Cxgl-4 located near Cx-III/IV suture line, projections associated with insertions of fourth legs rounded ( Figure 2B ). Genital field with numerous acetabula in two or three rows along posterior margin, gonopore terminal, 44 long and 36 wide.

Palp: dorsal length/height (ratio in parentheses): P1, 25/15 (1.69); P2, 54/39 (1.38); P3,

25/25 (1.0); P4, 63/25 (2.5); P5: 27/10 (2.8); P2 with several small denticles, P4 with a median ridge ( Figure 2C ). Gnathosoma ventrally 56 long (without apodemes), 86 with apodemes;

chelicera 107 long. Dorsal length of I-leg-4-6: 58, 67, 73; dorsal length of IV-leg: 78, 58, 64,

77, 92, 90.

Distribution — Previously known from one locality on South Island ( Cook 1983).

Figures

Figure 2 Kritaturus sornus Cook, 1983, female, Longbeach Creek. A – idiosoma, dorsal view; B – idiosoma, ventral view; C – palp. Scale bars = 100 μm.