Wuria sumatrensis
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Arrenuridae
Wuria
Wuria sumatrensis

description: Wuria cf. sumatrensis (K. Viets, 1935)
(Figs. 5 – 8)
New records: India, Assam State: Kamrup district, SW of Guwahati city, Deeper Beel wetland, between the water hyacinth Eichhornia corniculata, 26.10903N 91.68359E, 37 m asl., 8. xii. 2009, leg. Das & Bordoloi, 0/ 3/0 (0/1/0 mounted); stream near Hajo, 06.iii.2010, leg. Bordoloi, 2/1/0 (1/0/0 mounted).
Morphology. Male (in parentheses some measurements of two conserved specimens): Idiosoma L/W 516/ 472; surface of coxae and appendages with a fine regular porosity, surface of idiosoma shield (Fig. 5A) covered by group of these pores, each joined to a larger subcutaneous cavern by fine channels; dorsal furrow incomplete (dorsal shield posteriorly fused with ventral shield), dorsal shield maximum W 350; a stripe of idiosoma surface with large pores lying between the medial nargins of Cx-III/IV as well between the margins of Cx-II and -III; capitular bay shallow; distinct, nose-shaped projections associated with the insertions of IV-Leg; genital field completely lacking surface porosity, but many acetabula in the genital field linked in a similar manner as the idiosomal pores in groups of two to four each to subcutaneous cavern; gonopore short and narrow, L 57, acetabular plates L/W, 155 – 158/112, ratio 1.4; palp (Fig. 7A – B): total L 182, L and %L (in parentheses): P-1, 22 (12.1); P-2, 51 (28.0); P-3, 34 (18.7); P-4, 56 (30.1); P-5, 19 (10.4); palp with eight stout setae on the medial surface of P-2, P-4 with slender seta inserted at the base of the ventrodistal extension of the segment, P-5 relatively short and directed medially; gnathosoma L 118; chelicera total L 108. Legs: L of I-L-5 – 6 (Fig. 7C): 90, 99.
Female (in parentheses some measurements of two conserved specimens): Similar to male except in the shape of dorsal shield, genital field (Fig. 8) and IV-L-6. Idiosoma L/W (544 – 547)/(469 – 475); dorsal furrow complete, dorsal shield L/W 447/398; gonopore large L/W 115 (113 – 116)/76 (108 – 109), acetabular plates L/ W ratio 1.2; palp (Fig. 7D): total L 171, L and %L (in parentheses): P-1, 23 (13.5); P-2, 43 (25.2); P-3, 29 (17.0); P-4, 55 (32.2); P-5, 21 (12.3); gnathosoma L 112; chelicera total L 108, claw L 32. Legs: L of I-L-4 – 6: 74, 91, 98; L of IV-L (Fig. 7E): 115, 79, 80, 103, 114, 105.
Remarks. Four species of Wuria so far has been described: Wuria falciseta K. Viets, 1916 from continental Africa, W. sumatriensis K. Viets, 1935 from Sumatra (K.Viets 1935), Wuria boutit Harvey, 1989 from Northern Teritorry, Australia (Harvey 1989) and W. millioti Gerecke, 2004 from Madagacar (Gerecke 2004b). Each of these species is represented by a few specimens and the male of W. sumatrensis was unknown so far.
Due to the presence of a stripe of sclerite surface with larger pores lying between the medial margins of Cx-III/IV as well between the margins of Cx-II and -III, relatively wider acetabular plates (L/W ratio 1.2) and a slender palp, the specimens from India show general conformity with Wuria sumatrensis, a species described from a lake in Sumatra and later reported from New Guinea by Wiles (1997b). The illustrated female specimen differs in slightly more elongated gonopore, but two other conserved specimens have a more roundish gonopore and agree perfectly with the original description. However, this is only a tentative assignment and a more certain designation requires males from Sumatra (Wiles 1997b). New for the fauna of India.
Habitat: Ponds and slowly flowing streams.
Distribution. Indonesia (Sumatra), New Guinea, India.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on pages 41-42, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964