Comparison of different trapping methods used in the preliminary investigations. Average number of female anophelines caught per trap per night. The alphabetical symbols, a, b and c are used to represent differences as determined by unianova test. Trapping efficiencies for the different trapping methods in collecting a certain species are not significantly different (P = 0.05), if the bars representing a particular species in each trap share any of these alphabets. The Y-error bars represent 95% confidence intervals. CFG, Counterflow geometry trap baited with Limburger cheese; CDC, standard centers for disease control light trap; ET, Entry trap; MLC, man landing catches.