A. Hussain., M. N. Khan, M. S. Sajid, Z. Iqbal, M. K. Khan, R. Z. Abbas, M. A. Raza, G. R. Needham
1 Department of Parasitology, University of Agriculture, Faisalabad-38040, Pakistan
2 Department of Animal Sciences, University of Agriculture, Sub-Campus Dera Ghazi Khan
3 Department of Entomology, The Ohio State University, Columbus, OH 43210, USA.