We thank Prof. Joshi, N.V. and Dr. Krishna, M.B. for suggestions and support during our investigations. We thank Officials and Staff of
RSIC (Meghalya), Head of the Zoology Department, Bangalore University,
Authorities at G.C. College, Indian Institute of Science, Jawaharlal
Nehru Centre for Advanced Scientific Research for laboratory, Library facilities and other support.
The financial assistance from the Ministry of Environment and Forests, Government of India is gratefully acknowledged. BKC thanks CSIR for its support via a post doctoral fellowship.