Pictorial Keys of Chironomid Species (Order: Diptera) in El-Tall El-Keber Wastewater Treatment Plant, Egypt

R. Saleh-Ahmed, F.M. Ismail, A. Abo-Ghalia and N.S. El-Shenawy

Journal of Entomology 5 ( 6 ): 334 - 355 , 2008