_ BIBLIOGRAPHY. 
There are no more accurate figures and notes on the cases of the 
larve and pupe of Trichoptera than are furnished by the work 
of Miss Clarke. 
The habits of the net-spinning caddis-worms of swift water 
have been carefully described by Miss Noyes, 1914. A more 
detailed account of the net-spinners, together with a description 
of the larvee and pupz, has been prepared by Miss Noyes and is 
forthcoming in a bulletin of the New York State Museum. 
Dr. Cornelius Betten has prepared a careful monograph of all 
stages of North American Trichoptera, which will soon appear as 
a bulletin of the New York State Museum. After the appearance 
of this work much of the difficulty of determining species will be 
removed and, no doubt, the study of the order will be greatly 
stimulated. 
The bibliographical references in this paper cover all of the 
important writings on the immature stages of North American 
Trichoptera known to us. Many excellent papers have appeared 
on the immature stages of the European species, reference to 
which will be found in the aforenamed bibliographies. Much use 
has been made of many of these works in the preparation of the 
present paper, especially to the part on Trichoptera, Heft 5/6, 
of the “Stisswasserfauna Deutchlands,” by Georg Ulmer. 
A List oF THE More ImMporTANT WRITINGS ON THE IMMATURE STAGES OF 
NortH AMERICAN TRICHOPTERA. 
Berren, C. 1901. Aquatic Insects of the Adirondacks. Bull. 47. N. Y. 
State Mus. pp. 561-172. 
Berren, C. 1902. The Larva of the Caddis-fly, Molanna cinerea. Jour. 
N. Y. Ent. Soc. X. pp. 147-154. 
CiarKE, Cora H. 1882. Descriptions of two interesting Houses made 
by native Caddis-fly larvae. Proc. Bost. Soc. Nat. His. XXII. pp. 
67-71. 
Crarkr, Cora H. 1891. Caddis-worms of Stony Brook. Psyche. VI. 
Pp. 153-158. 
Comsrocx, Anna B. 1903. Ways of the Six-Footed. Boston. pp. 133-138. 
Comstock, J. H. 1901. Insect Life. New York. pp. 79-80, 148-152. 
Comstock, J. H. 1901. On the Emergence of a Caddis-fly from the water. 
Am. Nat. XXI. p. 480. 
Comstock, J. H. 1899. Manual for the Study of Insects. Ithaca. pp. 
186-190. ; 
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