**3. Results**

**Table 1** displays the means of trapping rates for three trap types over all three summers for the three most abundant species, one from each of three genera. Due to the non-normal distribution and the large number of traps with no adult mosquitoes (zeroes), the back-transformed means of the transformed data are also reported. Analysis indicates a statistically significant difference in the trapping rates only for *Ae. albopictus*, with the BG Sentinel using the BG Lure capturing the most mosquitoes. The Fay-Prince Omni Directional trap captured fewer than did the BG Sentinel, but more than the CDC Light trap, with all comparisons of traps for this species being statistically significant at the 0.05 probability level. The latter two traps used a carbon dioxide attractant only. For the other two species compared in this study, statistically significant differences in trap rates between traps were not detectable, though the arithmetic means for both *Cx. eraticus* and *An. quadramaculatus* were highest for the Fay-Prince trap.

**Tables 2**–**4** display the trapping rates for all three summers by ecoregion, with each table reporting rates for one type of trap. **Table 2** reports the trap rates for the CDC miniature light trap with CO2 bait. The CDC trap demonstrated a consistent difference in trap rates between the Mississippi River Alluvial Plain and at least one other ecoregion across all three species. The trap rate for *An. quadramaculatus* was the only one for which the Alluvial Plain was different from all other ecoregions; however, the trap rate for at least one ecoregion was different from that of the Alluvial Plain in all three species. **Table 3** displays the trapping rates for all Fay-Prince Omnidirectional traps across all three years. Unlike the CDC trap, the Fay-Prince did not demonstrate significant differences in trapping rates between ecoregions for two of the species: *Ae. albopictus* and *Cx. eraticus*. For *An. quadramaculatus*, however, a significant difference was noted in trap rates in the Mississippi Alluvial Plain and all three of the other ecoregions. **Table 4** displays the trapping rates for the BG-Sentinel trap using BG-Lure. None of these traps were used in the Central Dissected Till Plains ecoregion, so only three ecoregions were compared. No statistical differences in transformed trapping rates were detected between ecoregions for any of the three species as measured by the BG-Sentinel trap, despite very large differences in the arithmetic mean, reflecting great variation even in the transformed data. The means were somewhat similar between ecoregions for *Ae. albopictus*, as they were for the Fay-Prince trap; however, the means were widely separated for *An. quadramaculatus*. It should be noted that the number of trap-nights for Fay-Prince and CDC traps was five to six times that of BG Sentinel. The difference in findings suggests that the BG Sentinel were probably under-utilized in comparison to the other traps and sample numbers were probably insufficient.

The most productive trap for *Ae. albopictus* was the BG Sentinel. For the other two species compared here, no significant differences in average trap catch between trap types were apparent, though the Fay Prince trap demonstrated the highest arithmetic mean for both.
