Spring Insects

Spring 2013 in Indiana has been cool. Insect activity is delayed. Many of the insects active in early spring will overwinter as adults. This includes water striders (Gerridae) that can be seen skating along the surface of small streams. Most water strider species only overwinter as adults. In late fall, they leave the stream and burrow in overwintering sites along the stream bank. They live in moist places under rocks and foliage. Water striders experience high mortality from a variety of factors during the winter. The spring populations are typically smaller than the fall populations. Adults can live for several months in the spring during which they mate and lay eggs to produce the generation for the next summer.

Water Strider on the Crystal River, MI

Water Strider on the Crystal River, MI

August 2011

About jjneal

Jonathan Neal is an Associate Professor of Entomology at Purdue University and author of the textbook, Living With Insects (2010). This blog is a forum to communicate about the intersection of insects with people and policy. This is a personal blog. The opinions and materials posted here are those of the author and are in no way connected with those of my employer.
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