Sandracottus manipurensis Vazirani, 1969

Ghosh, Sujit Kumar, 2018, Diving beetles (Coleoptera: Adephaga: Dytiscidae) of Namdapha National Park, Arunachal Pradesh, India, Records of the Zoological Survey of India 118 (2), pp. 156-156 : 156-

5. Sandracottus manipurensis Vazirani, 1969 * ( Figure 3 , 4, 5 & 6 )

Material examined: District Changlang, Namdapha, Deban, 09.xii.1982, coll. S. Biswas, 1ex. (24159/H4A);

06.xii.1983, coll. S. Biswas, 1ex. (24160/H4A); Vijaynagar,

21.xii. 1984, coll. S. Biswas, 5ex. (24161/H4A).

Distribution: India: Arunachal Pradesh, Assam and Manipur ( Ghosh and Nilsson, 2012).

Taxonomic notes: While studying the aedeagus of Namdapha specimens of S. manipurensis Vazirani, 1969 , it was observed that it show some variation in comparison to the illustrations of aedeagus (holotype), provided by Vazirani (1969: 275 B). Therefore, the holotype of S. manipurensis Vazirani, 1969 was re-examined and it was found that the base of the aedeagus is detached and which was reflected in the diagrams, provided with the original description of the species by Vazirani (1969). To confirm the identity of the species, paratype was also examined and compared with aedeagus of Namdapha specimens, and found to be identical with Namdapha materials. Therefore, here the illustrations of aedeagus of holotype ( Figure 6 ), paratype ( Figure 5 ) and of new material ( Figure 4 ) to confirm the identity of the species.

Figures

Figures 1-3. 1) Platambus balfourbrownei, 2) Platambus fletcheri, 3) Sandracottus manipurensis.

Figures 4-6. Median lobe of Sandracottus maipurensis, 4) Namdapha, 5) Paratype, 6) Holotype.