686 The American Naturalist. . | [July, 
mer; some trees survived, other succumbed ; and so the introduction 
of the English sparrow destroyed our California live oaks. The best 
proof of this is that the destruction coincides with the spreading of the 
sparrow.” i 
Bibliography of Economic Entomology.—The first three 
parts of the Bibliography of the More Important Contributions to 
American Economic Entomology, which has been in preparation by 
the U. S. Department of Agriculture since 1882, have just been issued. 
They comprise the writings of B. D. Walsh (Part I.); Walsh and 
Riley (Part IL), and C. V. Riley (Part III.) ; there being in the first 
385 entries, in the second 479, and in the third 1556. The work has 
been prepared by Dr. Samuel Henshaw, and bears evidence of having 
been carefully done. It is accompanied by a very complete index, 
which will be appreciated by every working entomologist. 
Entomological Notes.—The current number of the Transactions 
of the American Entomological Society (Vol. XVIL, No. 1) contains 
two valuable papers by Dr. G. H. Horn on the North American species 
of Heterocerus and Octhebius ; a similar discussion of the species of 
Dendroctonus by Dr. W. G. Dietz ; descriptions of three new species 
of North American Odonata, and notes on three others, by Philip H. 
Calvert; descriptions of a number of new species of Agrotis, by John 
B. Smith; and a valuable paper by H. F. Bassett on new species of 
Cynipidz. 
Prof. G. F. Atkinson's excellent paper on Nematode Root-Galls 
(Heterodera radicola) has been republished in the Journal of the 
Elisha Mitchell Scientific Society (Vol. VI., pp. 81-130). 
In the same journal (pp. 134-147), Prof. W. L. Poteat presents some 
interesting notes on the architectural and feeding habits of a tube- 
building spider (Afpus niger Hentz). 
Mr. E. A. Schwarz has published (Proc. Ent. Soc. Washington, Vol. 
L, pp. 237-247) an important paper on the Myrmecophilous Coleoptera 
found in temperate North America. A list of the beetles and their 
hosts is given. 
Prof. J. B. Smith has published, as Special Bulletin K, of the New 
Jersey Experiment Station, an extended report upon the cranberry 
NS of that State. 
Bulletin No. 1 of the Colorado Biological Association contains a 
valuable paper on the Hymenoptera of Colorado, by William H. Ash- 
