Piona cf. pachydermoidea K. Viets, 1956

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, Zootaxa 2617 (1), pp. 1-54 : 31-32

Piona cf. pachydermoidea K. Viets, 1956

( Fig. 4A–C )

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, 0/1/0 (mounted).

Remarks: The female specimen from Assam resembles Piona catatama Cook (known from southern India (see above) and P. pachydermoidea K. Viets, described from Thailand ( Piersig 1906). Our specimen has the setal tubercles on P-4 well pronounced (vs. extremly small setal tubercles in P. catatama , see Cook 1967, Fig. 575). The palps and anterior legs are missing in the original description of P. pachydermoidea, so our attribution to this species is tentative and a meaningful comparasion can only be made when a complete specimen of P. pachydermoidea from the area of locus typicus has been described.

Habitat: Ponds.

Distribution: India, Thailand.

Figures

FIGURE 4 A – C. Piona cf. pachydermadoidea K. Viets, 1956, female: A = palp; B = genital field; C = I-L- 5 and - 6. Scale Bar = 100 μm.