210 Wisconsin Academy of Sciences, Arts, and Letters. 
species differs in several details, most conspicuously in the form 
of the genital plates. N. papillator also resembles N. fragilis and 
N. extendens, differing from them in the shape of the genital areas 
and in the size of the fourth leg plates. The groups of epimera 
are large. The genital plates are a little removed from the 
epimera and are placed at the extreme end of the body. The 
papilla which is always found near the outer margin of the geni¬ 
tal plate of each side is very conspicuous in the male of this 
species and is set into a concavity of the outer surface of each 
plate. In the female the plates are small, pear-shaped, remote 
from the cleft, and have the large papillae near them also. The 
acetabula are not very distinct. The epimera and legs are tinged 
with blue. The first three pairs of legs are well provided with 
heavy spines set into deep sockets. The last joint of the first 
leg is long, slim, and slightly curved; the fourth leg has long, 
stout hairs, while the short spines of the middle joints are 
slightly feathered. The palpi are large for the genus, especially 
in the second joint. 
This is a small mite, the male measuring 0.60 mm., the female, 
O. 78 mm. Eight individuals were found: by the author in the 
Lauderdale Lakes, southern Wisconsin; by Dr. R. A. Muttkowski, 
in the lakes at Madison, Wisconsin; and by Dr. E. A. Birge at 
Slidell, Louisiana. 
Neumania distincta nov. spec. 
Plate IY, figures 22, 23. 
This large member of the genus is readily identified by the un¬ 
usual form of the male genital plates, which are narrow, con¬ 
stricted near the center, and extend far out from the genital 
cleft. The acetabula are small and scattered. The epimera are 
heavy, large, and close together; the fourth pair have conspicu¬ 
ous posterior corners. The brace from the first group of plates 
is short and shaped like a curved blade. The legs are stout and 
bluish. The first and second pairs have the usual dagger-like 
bristles set in large sockets; the third legs have many stout 
bristles, moderately long; the last three joints of the fourth legs 
have each a row of short, stout bristles with a bunch of longer 
bristles on the distal ends of the fourth and fifth joints. The 
palpi are rather stout; the fourth joint is broad at the distal end, 
and the hair papillae are large, while the fifth joint is very small 
