400 ENTOMOLOGICAL NEWS. [Dec. , '06 



UNDER the name Eurypodea fredericki Edw. A. Klages has described 

 a remarkable beetle from Suapure. Caura Valley, Venezuela, belonging 

 to the group Copres. The single sheet description was published by the 

 author. 



Entomological Literature. 



TENTH ANNUAL REBORT OF THE STATE ENTOMOLOGIST OF MINNESOTA. 

 Fourth Annual Report of F. L. Washburn. The Diptera of Minne- 

 sota. This is a work of one hundred and fifty-five pages and contains 

 two plates in color; the second plate is appropriately numbered as to the 

 names of the species and the first is not. There are also one hundred 

 and sixty-three line and half tone cuts, which are mostly very good. 

 The first fourteen pages are devoted to an account of the Diptera, their 

 economic importance and their anatomy. Then follows a synopsis, 

 after which the body of the work is made up of an account of the 

 families and species inhabiting Minnesota. The work will be very 

 valuable to the people of the State who care to use it. As a popular 

 treatise on the subject it will also be useful to the many entomologists 

 who do not make a special study of the Order. 



A REVISION OF THE AMERICAN PAPILIOS.* By the Hon. Walter Roths- 

 child, Ph.D., and Karl Jordan, Ph.D. 



This is a work of 333 pages, with six plates and fifty-nine figures, 

 and covers North and South America and the adjacent islands. It 

 shows very great reseach into the literature of the subject and we 

 presume the nomenclatural opinions of the authors will be largely 

 followed. There has been no attempt to divide the species into " up-to- 

 date " genera, although this is promised later. We believe the authors 

 are unusually qualified to do this in a scientific way as they say " classifi- 

 cation has always suffered from the habit of systematists of studying the 

 systematics of a district rather than concentrating their labors on certain 

 families taking into account all the species of the globe." We again 

 quote as follows : "The most interesting general result of our researches 

 is perhaps the demonstration of geographical variability in secondary 

 sexual characters apart from the genitalia. The occurrence of such 

 variability is of great bearing on systematics, since many authors con- 

 sider secondary sexual differences to be of generic value." It should 

 not be forgotten that there are two sexes in insects and the student is 

 not unlikely to have or obtain but one and a unisexual classification 

 won't help him materially, especially in families where there is consider- 

 able antigeny. There is much food for thought of very considerable 

 interest in" the preface. The work as a whole is excellent, and while it 

 is quite possible to take exception to the standing accorded a number of 

 forms, the subject is one of great difficulty and our knowledge at present 

 too limited to speak dogmatically on the subject. Trinomials are used 



* Novitates Zoologicae, xiii., No. 3,'August, 1906. 



