Paratryssaturus cantermus Cook, 1983

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 : 29

Paratryssaturus cantermus Cook, 1983

( Fig. 2K , 21 A–B)

Material examined. New Zealand, South Island, Selwyn River near Coalgate, 10.v.2004, 0/2/0 (0/1/0 mounted).

Remarks. Due to the subterminal position of excretory pore ( Fig. 21 A) and pronounced projection on IV- L-2 ( Fig. 21 B), the specimens from Selwyn river show conformity with Paratryssaturus cantermus Cook, 1983 , a widespread species reported from North and South Island ( Cook 1983). Differences are found in the dorsal shield ornamentation which consists of a reticulate pattern ( Fig. 2K ) but is lacking the papillae characteristic for P. cantermus (see Cook 1983, Fig. 590). The variability of further specimens needs to be examined to clarify the taxonomy.

Distribution. New Zealand; previously reported from North and South Island ( Cook 1983).

Figures

FIGURE 21. Paratryssaturus cantermus Cook, 1983, female: A = ventral shield; B = IV-L. Scale bars = 100 µm.

FIGURE 2 A – L. Photographs of dorsal shield. A— Colobaturus selwynus Pesic & Smit n. sp., female; B— Taintaturus selwynus Pesic & Smit n. sp., male; C— T. rostratus Pesic & Smit n. sp., female; D— Canterburaturus minutus Pesic & Smit n. sp., male; E— C. novaeseelandicus Pesic & Smit n. sp., female; F— C. cooki Pesic & Smit n. sp., female; G— Abelaturus schwoerbeli Pesic & Smit n. sp., male; H— A. schwoerbeli Pesic & Smit n. sp., female; I— Abelaturus cornophorus Cook, 1983, female; J— Piotaturus bovalus Cook, 1983, male; K— Paratryssaturus cantermus Cook, 1983, female; L— Zelandalbia longipalpis Pesic & Smit n. sp., female.