Wednesday, July 10, 2013

Tule Bluet

Tule Bluets may at first seem similar to the Stream Bluets that I wrote about in my previous post. Note, however, the broader blue rings on the abdomen, rings that become thinner as you look down the abdomen. The first segment is nearly all blue except for the black spot on the top. The last two segments are almost completely blue. Finally, the cerci at the end of the abdomen are white-tipped (see bottom photo).

Duboiswrites that Tule Bluets are found along the shores of “larger, deeper lakes.” Indeed, I found this individual along the shore of Circle Lake, one of the larger lakes in northern Rice County. He also comments that Tule Bluets deposit their eggs on submerged plants and, also, sometimes on rushes even a foot above water. Larvae live for over a year, go through almost a dozen stages (instars), and overwinter in one of their later instars.

The species is common across northeastern and western North America south to Baja California.

No comments:

Post a Comment