ENTOBLITZ:
Culicidae
Dr. Jimmie K. Olson, medical entomologist at Texas A&M,
sampled mosquitoes using three types of traps. EVS Light traps are encephalitis
vector survey (EVS) traps that are baited with carbon dioxide. The CDC
Gravid Trap was developed by Dr. Paul Reiter of the U.S. Centers for Disease
Control to collect gravid Culex mosquitoes. For this reason, this
trap is particularly good for collecting virus-positive mosquitoes. Although
the Standard New Jersey and other light traps will capture these mosquitoes,
the specimens are almost all nulliparous and therefore less likely to be
infected. The CDC trap attracts mosquitoes with white light and captures
them with the down draft produced by a motor and fan. The CDC light trap
performed far better than the others at this locality.
Dr. Olson knew there was a big shallow pond with lots
of emergent aquatic vegetation nearby after he made his first mosquito
sample. The presence of Coquillettidia
(=Mansonia)
perturbans told him this.Sure enough, just over the
hillside was a beaver pond on a small creek that made perfect Coquillettidia
habitat. The larvae of these mosquitoes do not come to the surface to breathe.
They tap into the submerged parts of emergent aquatic vegetation for air.
http://www.nmca.org/paper21a.htm
EVS. Light Trap Sample
| Species |
Number of Specimens |
| Aedes sticticus |
3 |
| Aedes triseriatus |
1 |
| Aedes vexans |
3 |
| Coquillettidia (=Mansonia) perturbans |
3 |
| Culex salinarius |
1 |
|
|
Gravid Trap Sample
| Species |
Number of Specimens |
| Aedes sticticus |
2 |
| Coquillettidia (=Mansonia) perturbans |
3 |
CDC Light Trap Sample
| Species |
Number of Specimens |
| Aedes atlanticus/tormentor |
2 |
| Aedes muelleri (?) |
8 |
| Aedes sticticus |
29 |
| Aedes triseriatus |
3 |
| Aedes vexans |
115 |
| Anopheles crucians |
8 |
| Anopheles punctipennis |
2 |
| Coquillettidia (=Mansonia) perturbans |
4 |
| Culex salinarius |
2 |
| Psorophora ferox |
1 |
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