Paratryssaturus zodelus 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 : 507

Paratryssaturus zodelus Cook, 1983

Figures 5 , 14G

New records — South Island. 2/4/0, Six Mile Creek, foothills of Rock and Pillar Range, Middlemarch, 45°26.682′ S, 170°06.828′ E, alt. 396 m asl., 24 Jan. 2023, 0/2/0 dissected and slide mounted. 2/2/0, Lug Creek at foothills of Rock and Pillar Range, 45°25.166′ S, 170°08.131′ E, alt. 438 m asl., 24 Jan. 2023.

Remarks — Cook (1983) collected two females from Staircase Creek on South Island, but was not certain about the assignment to P. zodelus , and did not give a description. Smit & Pešić (2020) collected one female from Graham River on South Island but in the absence of male they were not certain about the assignment to P. zodelus and they did not provide a description. Therefore, the female was unknown, and a description is given below.

Description. Female — Idiosoma dorsally 392 long and 281 wide, ventrally 445 long; caudal margin slightly indented. Integumental pigment absent; ornamentation of dorsal sclerites consisting of a reticulate pattern (as photographed in Figure 14G ) but lacking papillae. Dorsal shield ( Figure 5A ) typical for the genus Paratryssaturus , 325 long and 265 wide; unpaired anteromedial plate 122 long and 167 wide; unpaired posteromedial plate distinctly longer than anteromedial plate, 197 long and 183 wide; anterolateral platelets 145 long, posterolateral platelet 109 long. Anterior coxae projecting, gnathosomal bay 106 long, glandularia Cxgl-4 located near suture line of Cx-III/IV; projections associated with insertions of fourth leg relatively large and rounded; between insertions of fourth legs and genital field a pair of glandularia ( Figure 5B ). Gonopore distanced from posterior idiosoma margin, 39 long. Excretory pore ventrally near posterior idiosoma margin.

Palp: dorsal length/height (in parentheses length/height ratio): P1, 23/17 (1.32); P2, 50/39 (1.28); P3, 26/28 (0.93); P4, 56/27 (2.12); P5, 31/12 (2.65); P2 anteroventrally with a few denticles, P4 with a ridge in anterior half of segment ( Figure 5C ). Gnathosoma 97 long (with apodemes); chelicera 120 long. Dorsal length of I-leg-2-6 ( Figure 5E ): 52, 41, 56, 59, 74; dorsal length of IV-leg-3-6 ( Figure 5F ): 50, 72, 73, 80.

Distribution — Known from North and South Island ( Cook 1983 ; Smit 2017).

Figures

Figure 5 Paratryssaturus zodelusCook, 1983, female, Six Mile Creek. A – idiosoma, dorsal view; B – Idiosoma, ventral view; C – palp; D – gnathosoma and chelicera; E – I-leg-2-6; F – IV-leg-4-6. Scale bars = 100 μm.

Figure 14 Photographs of dorsal shield. A – Evidaturus scopticus Cook, 1983, male holotype, stream on Wainui Rd (from: <https://collections.tepapa.govt.nz/object/125039>); B –Kritaturus sornus Cook, 1983, female, Longbeach Creek; C – K. jacundusCook, 1983,