Table 1. Number of WNV positive pools by species recorded in Ontario, Canada from 2002 to 2013.
| Species | ‘02 | ‘03 | ‘04 | ‘05 | ‘06 | ‘07 | ‘08 | ‘09 | ‘10 | ‘11 | ‘12 | ‘13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ae. japonicus | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 9 | 2 | 1 |
| Ae. vexansa | 41 | 3 | 3 | 17 | 17 | 10 | 3 | 2 | 5 | 15 | 10 | 8 |
| An. punctipennis | 11 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| An. quadrimaculatusb | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 |
| An. walkeri | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cq. perturbans | 18 | 1 | 2 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Cx. pipiens/restuans | 301 | 105 | 60 | 260 | 156 | 38 | 56 | 11 | 48 | 237 | 436 | 184 |
| Cx. salinarius | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
| Cs. melanura | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Och. excrucians | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Och. sollicitans | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Och. stimulans | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Och. triseriatus | 8 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 8 | 1 | 0 |
| Och. trivittatus | 11 | 1 | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
| Total | 415 | 115 | 66 | 283 | 180 | 50 | 62 | 14 | 57 | 281 | 457 | 195 |
a May include some specimens of Aedes vexans nipponi [45]
b Specimens of the An. quadrimaculatus species complex were identified morphologically to An. quadrimaculatus sensu lato