Page:Popular Science Monthly Volume 63.djvu/459

Rh are frequently seen flying about in the woods before the snow has wholly left the ground.

Mosquitoes can not develop or come to maturity without water in which to live during the first weeks of their 'wiggler' existence.

A mosquito's life is divided into four stages—the egg, the larva, the pupa and the adult insect. In the larval and pupal stages, mosquitoes are more commonly known as 'wigglers' (see Fig. 1). Both

Anopheles, the malarial, and Culex, the common, mosquito larvæ are present in this picture. Mosquito 'wigglers' may frequently be found in rain-water barrels in as large numbers as are seen in this photograph. The female mosquito lays from one hundred and fifty to four