Piotaturus bovalus Cook 1983
Creators: name: Pesic, Vladimir
name: Smit, Harry
name: Datry, Thibault
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Aturidae
Piotaturus
Piotaturus bovalus

description: Piotaturus bovalus Cook, 1983
(Figs. 2J, 19A–E, 20)
Material examined. New Zealand, South Island: Selwyn River near Coalgate, riffle, 26.xi.2003, 0/1/1 (0/1/0 mounted); ibid., 08.iv.2004, 0/1/0; ibid., 04.vi.2004, 1/0/0; Selwyn River near Old Bridge, 11.iii.2007, 0/1/0; ibid., 08.vii.2004, 0/1/0; ibid., 10.ix.2004, 0/0/1; ibid., 04.vi.2004, 0/0/2; ibid., 20.ix.2004, 4/1/3; ibid., 20.x.2004, 3/0/0; Selwyn River near Hororata, 07.vii.2004, 0/0/1; Selwyn River near Coes Ford, 10.iii.2005, 1/0/0 (mounted); ibid., 08.iv.2004, 5/5/1 (1/0/0 mounted); ibid., 20.viii.2004, 2/2/1; ibid., 24.xi.2004, 2/0/4; ibid., 23.v.2005, 2/1/0; ibid., 20.ix.2004, 0/0/1; ibid., 24.xi.2004, 2/0/3; ibid., 08.vii.2004, 0/0/2; ibid., 10.v.2004, 1/0/0; ibid., 04.vi.2003, 0/1/1; Selwyn River near Chamberlain's Ford, 17.i.2005, 2/0/1; ibid., 25.vii.2005, 1/1/5; ibid., 21.x.2004, 1/0/0; ibid., 23.v.2005, 5/1/4.
Morphology. Male (n=2). Integumental pigment absent; eye pigment reduced; dorsal shield (Fig. 19A) L 481–487, W 384–406; anteromedial plate L 219–228, W 331–342; anterodorsal plate bearing the postocularia on a small tubercle; anterolateral platelets with one pair of glandularia; a pair of small glandularia lying free in the integument; posteromedial plate with two pairs of glandularia; no pronounced development of hood on anterior end of ventral shield; the surface ornamentation of dorsal shield as in Fig. 2J; ventral shield (Fig. 19B) L 688–697, W 484; capitular bay L 141; anterior coxae broad and roundly pointed; glandularia of fourth coxae located near suture lines between third and fourth coxae; projections associated with insertions of IV-L wide and rounded; posterior end of body highly modified; gonopore hidden in ventral view by a two-parted anteriorly directed and pointed flap (Fig. 19D); genital field not distinctly set off from remainder of ventral shield; gonopore ventral; it is not possible to count the number of acetabula in this poorly preserved material but it appears there must be several; excretory pore dorsal, slightly posterior to posterior margin of dorsal shield; palp (Fig. 19E): total L 333–345, dL and %L (in parentheses): P-1, 38 (11.4); P-2, 86–90 (25.8–26.1); P-3, 45–46 (13.3–13.5); P-4, 112–116 (33.6–33.7); P-5, 52–54 (15.6–15.7); ventral margin of P-2 with well developed denticles; capitulum L 117; dL of IV-L: 94, 112–116, 78–93, 139–147, 128–138, 91–100; chaetotaxy of IV-L as illustrated in Fig. 20.
Female. Described by Cook (1983). The females from the Selwyn River are in good agreement with the type specimen; dorsal shield L 491, W 398; anteromedial plate L 205, W 291; ventral shield L 616, W 500; capitular bay L 119; gonopore L 133, W 46; palp: total L 267, dL and %L (in parentheses): P-1, 32 (12.0); P- 2, 68 (25.5); P-3, 36 (13.5); P-4, 85 (31.8); P-5, 46 (17.2); capitulum L 103; dL of IV-L: 74, 82, 57, 92, 92, 85. Remarks. This is the first description of the male of this species. For an analysis of diagnostic characters of P. bovalus see: Cook (1983).
Distribution. New Zealand; previously reported from South Island (Cook 1983).
description: Published as part of 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, pp. 1-34 in Zootaxa 2355 on pages 26-28, DOI: 10.5281/zenodo.193562