212 Wisconsin Academy of Sciences, Arts, and Letters. 
integument shows many small rounded pieces of chitin, while 
the appendages have many small areas of tiny points scattered 
irregularly over their surfaces. This feature, although not pe¬ 
culiar to this species, is unusually pronounced here and has sug¬ 
gested the specific name. This is a small mite; the body length 
is variable, but averages about 0.75 mm. 
The species is described from the study of thirteen males and 
seven females, all from Wisconsin lakes. The collections came 
from lakes near Delton, Big Spring, Briggsville, Spooner, 
Neshota and Madison, the last mentioned material added by Dr. 
R. A. Muttkowski. 
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