THE CANADIAN ENTOMOLOGIST. 217 



"Staudinger-Rebel"-Catalogue; of Cymatophoridse 86 are given in 

 the "Seitz," while in "Staudinger's" work only 23 are shown; of 

 Limacodida? 46 are found in the "Seitz," whereas 15 are accounted 

 for in the catalogue mentioned above. 



All in all, this volume describes about 3000 species of Spinners 

 (or varieties thereof), besides about 300 Sphingidae. The number 

 of coloured figures on 55 plates amounts to nearly 2400. When it 

 is considered that the Moths and Spinners in the Staudinger do not 

 quite number a thousand (in which, of course, some varieties are to 

 be counted), one must readily admit that our knowledge of the 

 palearctic region, with reference to Entomology, has been vastly 

 increased by means of this gigantic work. 



The reliability of the text, it must be said, can only be judged 

 by those versed in this subject, or by specialists of the palearctic 

 Fauna. The names of the authors, who contributed to this work, 

 are so well known in the scientific world that one may readily 

 place confidence in their statements and their scientific work. 



By reading a chapter of the "Seitz," it will doubtless be ascer- 

 tained that the numerous serviceable hints on collecting and 

 rearing moths and caterpillars, are based upon personal experience; 

 and that, furthermore, the author himself has personally bred the 

 principal representatives of almost all the species, no matter 

 whether they live in the Amur region, or in Syria, or in Maure- 

 tania, etc. He has, at any rate, observed them alive. The vast 

 amount of information on food-plants, on methods of collecting, 

 etc., are, no doubt, of the utmost importance to any collector; for 

 is there any other book which mentions, e.g., at what hour the 

 caterpillars of Emydia striata must be collected, in order to obtain 

 them in greatest abundance? or is there one that cautions against 

 delay in taking in the Ognogyna caterpillars, and admonishes us to 

 collect them before the grass has grown so high that they are 

 completely hidden from sight? 



As in the first volume the plates are the most important 

 features of the work. If anyone should presume the assertion to 

 be too bold that it was left to the "Seitz" to show the world what 

 really good figures are, he certainly ought to make a critical com- 

 parison with other works of this kind. The average collectors are, 

 of course, satisfied with the illustrations in the new "Berge," and 



