Comparison of different trapping methods used in the comparative studies by counterflow geometry traps. Average number of female mosquitoes caught per trap per night. The alphabetical symbols, a, b 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 LC, counterflow geometry trap baited with Limburger cheese; CFG MC, counterflow geometry trap baited with milk cream; CFG NB counterflow geometry trap NOT baited.