Showing posts with label Twelve-spotted skimmer. Show all posts
Showing posts with label Twelve-spotted skimmer. Show all posts

Sunday, August 26, 2012

Twelve-spotted Skimmer

Twelve-spotted Skimmer

One of the most common dragonflies in this area is the twelve-spotted skimmer. This large skimmer is often found around ponds and lakes where there is very little water movement. It is easily identified by the 12 dark spots on its wings, each of the four wings has three spots. This a mature male of the species. Mature males can be distinguished from the females and immature because they have white spots in between the black spots on the wings.


Sunday, May 29, 2011

Twelve-spotted Skimmer

One of the largest and most easily recognized dragonflies that we see here in Minnesota is the twelve-spotted skimmer. The twelve-spot is named for the series of spots that are seen on the wings. Each wing has three spots making for a total of twelve spots for all four wings.
While the male twelve-spotted is unmistakable the female pictured here looks similar to the female common whitetail. They are both similar in color and have twelve wing spots. The way to distinguish between the two is to look at the yellow top spots that run across the top of the abdomen. In the twelve-spot the top spots form a smooth straight line while on the common whitetail female the top spots form a jagged zigzag line. Since the top spots on the dragons in these pictures form a straight line we know that this is a twelve-spotted skimmer.


Sunday, November 15, 2009

Twelve-spotted Skimmer

One of the larger and easy to recognize dragonfly is the twelve-spotted skimmer. These dragons are common through out the lower 48 states and up into southern Canada. They are usually found around ponds, lakes or other slow moving bodies of water. They are named for the 12 brown spots on the wings, 3 on each of the 4 wings. This picture was taken in August at Crex Meadows. At first glance I believed that this was a female, because males usually have a powdery white substance called pruinose which covers most of their abdomen. Since this one is missing the pruinose it definitely can not be a mature male. However their are white spots in between the brown on the wings, which is rare to see in females, so it is most likely an immature male.