NEW ACARINA FROM INDIA.* 
H. E. Ewinae. 
INTRODUCTION. 
At present our knowledge of the Acarina is almost 
entirely confined to European and North American forms, 
with the possible exception of the family Analgesidae, or 
‘‘Bird Mites.’?’ As the members of this family can be 
easily collected from the skins of birds in museums, its 
representatives have been obtained from all parts of the 
world. 
A comparative study of those few forms which we do 
have from the tropics with the many now known from the 
North Temperate Zone appears to indicate, though we 
would hardly expect it, that, as a rule, it is the tropical 
forms that are the smaller and less remarkable in appear- 
anace. In other words, for most free-living families at 
least, it appears that it is in temperate climates that 
they reach their greatest development. This point was 
strongly emphasized a few years ago by Mr. A. D. Michael 
of England, who then examined and described! some very 
fantastic and bizarre forms collected by Mr. Bostock in 
New Zealand. Every one of these species Mr. Michael 
referred to previously created genera, yet they showed 
a great exaggeration of the characters found in warmer 
climates. 
A eareful study of some fifteen species received from 
the southern part of India has been made by the writer. 
Judging from my knowledge of these forms as compared 
with our North American and the European Acarina, I 
have been convinced of the correctness of Mr. Michael’s 
view. I find that, with one possible exception, all these 
*Presented by title to The Academy of Science of St. Louis, Decem- 
ber 5, 1910. 
*Unrecorded Acari from New Zealand. Journ, Linn. Soc. 30: 134-149. 
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