THE INFLUENCE OF FLOODS UPON ANIMALS 169 



Of these higher forms, the field mice, and even a specimen of 

 the common cottontail rabbit, {Lepus nutalli mullurus Thomas) 

 were seen riding upon the floating driftwood. From such rafts 

 as the writer was able to reach were taken Rhyncophorid, Cara- 

 bid and Chrysomelid beetles, among other insect forms, and 

 spiders. Shelf ord (1913) has also recorded having observed in- 

 sects upon nettles and driftwood. This part, played by the 

 flood, in dispersal of animal life is of considerable possibility and 

 may account, in part at least, for the wide distribution of many 

 of our common forms. 



ACKNOWLEDGMENTS AND LITERATURE. 



For determination of the lepidopterous larvae listed in this 

 paper I am indebted to Dr. Stanley B. Fraeker, of the University 

 of Wisconsin. I am under especial obligation to Dr. Chas. C. 

 Adams, of Syracuse University, Syracuse, New York, and Pro- 

 fessor Gilbert L, Houser, of this institution, for many aids to 

 me in the preparation of this paper and for criticism of the 

 manuscript. I wish, also, to particular'ly acknowledge my in- 

 debtedness to Mr. H. M. Trusler, of Indianapolis, Indiana, for 

 his assistance to me in the preparation of the maps. 



As this particular field has practically i*emained untouched up 

 to the present, there is little available literature on the subject 

 as such. To be sure, there are, no doubt, hundreds of individual 

 references pertinent to the subject, not only in zoological, but 

 botanical and physiographical publications as well. However, 

 to the best of my knowledge, this is the first attempt to bring 

 any of these together in an American publication. I realize that 

 the following list contains but few of the many possible refer- 

 ences but it is my intention to give only those titles which I per- 

 sonally consulted in connection with this paper. Inasmuch as 

 many of these are but incidental references, I have included an 

 explanatory paragraph with each title. 



Antipa, Gregor, 1912. 



Die Biologie des Inundationsgebietes der unteren Donau und des 

 Donaudeltas. Verhand VIII. Inter. Zool. Kongresses zu Gras, 1910. 

 pp. 163-208. 



This article consists of a description of the biological conditions on 

 the flooded lower Danube and its delta. He includes in his discussion, 

 for example, observations concerning the modified nesting habits of 

 birds in response to the flooded conditions of the region. This is the 

 most pertinent article on the subject that has come under my notice. 



