Canterburaturus novaeseelandicus Pesic & Smit

Pesic, Vladimir, Smit, Harry & Datry, Thibault, 2010, Water mites (Acari: Hydrachnidia) from the hyporheic waters of the Selwyn River (New Zealand), with descriptions of nine new species, Zootaxa 2355, pp. 1-34 : 21-24

publication ID

https://doi.org/ 10.5281/zenodo.193562

DOI

https://doi.org/10.5281/zenodo.6200740

persistent identifier

https://treatment.plazi.org/id/2E2D2B30-FF92-FFFE-FF44-5FA99D95009A

treatment provided by

Plazi

scientific name

Canterburaturus novaeseelandicus Pesic & Smit
status

sp. nov.

Canterburaturus novaeseelandicus Pesic & Smit sp. nov.

( Fig. 2E View FIGURE 2 A – L , 17A–F View FIGURE 17 A – F )

Type material. Holotype: female dissected and slide mounted in Hoyer's fluid. New Zealand, South Island, Selwyn River near Old Bridge, 20.ix.2004. Paratypes: 0/1/0 (mounted), Selwyn River near Ridgens, 20.viii.2004; 0/1/0, Selwyn River near Scoots, 18.i.2005.

Diagnosis. Surface of dorsal sclerites smooth; P-2 relatively expanded and with a pointed projection ventrodistally; P-3 with a pointed projection ventrodistally.

Description. Female (holotype, in parentheses measurements of paratype). Integumental pigment absent; eye pigment reduced; surface of sclerites smooth (as shown in Fig. 2E View FIGURE 2 A – L ); dorsal shield ( Fig. 17A View FIGURE 17 A – F ) L 359 (347), W 331 (320); anteromedial plate L 156 (156), W 230 (211); anterolateral platelets bearing a pair of glandularia; posterolateral platelets with one pair of glandularia; posteromedial plate bearing two pairs of glandularia; anterodorsal portion of ventral forming a hood-like projection which does not extend to the tips of the first coxae ( Fig. 17C View FIGURE 17 A – F ); ventral shield ( Fig. 17B View FIGURE 17 A – F ) L 491 (444), W 418; capitular bay L 141 (117); tips of first, second and third coxae somewhat pointed and with well developed intercoxal slots; projections associated with insertions of IV-L truncate, moderately large and extending to sides of idiosoma; a well developed ridge on each side extending posterolaterally from region of insertion of IV-L; a relatively long apodeme and a glandularium on each side located medial to insertions of IV-L; gonopore terminal L 65 (65); four pairs of small setae immediately flanking the gonopore; palp ( Fig. 17 View FIGURE 17 A – F D-E): total L 211 (204), dL: P-1, 28 (30); P-2, 55 (53); P-3, 34 (35); P-4, 69 (65); P-5 25 (21); %L: P-1, 13.3 (14.7); P-2, 26.1 (26.0); P-3, 16.1 (17.2); P-4, 32.7 (31.9); P-5 11.9 (10.3); P-2 relatively expanded and with a pointed projection ventrodistally; P-3 with a pointed projection ventrodistally; capitulum ventral L (with apodemes) 89 (89); chelicera total L (125); dL of IV-L-2-6: 81 (82), 39 (39), 62 (57), 63 (63), 66 (65); maximum H of IV-L-2, 51 (51); IV-L-2 L/H ratio, 1.6 (1.6); chaetotaxy of IV-L as illustrated in Fig. 17F View FIGURE 17 A – F ; swimming hairs absent.

Male. Unknown.

Etymology. The species is named for its occurrence in New Zealand.

Remarks. The present species differs from the two other species of the genus in its major idiosoma and gnathosoma dimensions and a palp with P-2 bearing a pointed ventrodistal projection. Moreover, the ornamentation of the dorsal shield differs completely (compare Figs. 2D, 2E and 2F View FIGURE 2 A – L ).

Ecology. The studied material was collected from August to February, from ephemeral-losing (Scotts and Ridgens) and the perennial-gaining (Old Bridge) reaches of the river.

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