 |
The Poweshiek Skipper Project | |
| Lake Hawthorne ©Rayford
Ratcliff
Introduction Information about the butterfly
O.
poweshiek, Legacy butterfly Legacy
of Chief Poweshiek
H.W. Parker's writings Von Blixum's Heroic Experiment
Iowa's
biological diversity
The Poweshiek Skipper Project Goals
of the project
|
Other Groups There are a number of other arthropod groups that I have
not really covered yet at all. Some are well known but most are
not. This would include spiders, mites, pseudoscorpions, opiliones (also known as Daddy long-legs), mites, millipedes, and centipedes. In general, there is not an Iowa list for any of these groups, and there are no good field guides for any of them. The mites are so unknown that there are probably a number of undescribed species in Iowa. There are 530 species of spiders on the Illinois list. There is a list of the spiders of Ohio that can be found at: http://www.marion.ohio-state.edu/SpiderWeb/OhioSpiders.htm Iowa probably has between 400 and 500 species of spiders. The photograph at the above right shows a jumping spider,
the peppered jumper or Pelegrina galathea. On the lower left is a snail shell, left over from Oxyloma retusa. If you look closely on the dirt on the top right of the photograph, you will see a reddish creature with long claws. That is a pseudoscorpion. Pseudoscorpions are very small and harmless (to us) organisms found in leaf litter. I have run across them but only rarely. In fact, when I took this photo I did not see the creature. I though I was only taking a picture of the empty shell. Since the Illinois list includes 28 species, I would guess that we have in the neighborhood of 20-25 species. |
