THK CANA.DIA.N EN rOMOLOOIST. 415 



ihe individuals there gathered. One had a single celi, the other two iiad 

 two cells each. 



Now, the only point in which the genus Philopsia, Hulst, differs 

 from Ta/ledega^ Hulst, is in the number of accessory cells, and as these 

 have proven inconstant in other material which I have examined, it follows 

 that one of these genera must fall. 



Philopsia having priority of page, though not of date, will stand, and 

 Talledega becomes a synonym of it, the species under it being transferred 

 to PJiilopsia. 



In support of this view, I will state that last spring 1 received from 



Middle California several specimens, which I at once supposed to be 



dark, well-marked individuals oi canavestita, but on a close examination I 



found they all had twj accessory cells, and, therefore, must go into 



Talledega. I had seen a single specimen from the same region among 

 materi il sent me by Dr. Barnes, and I came near describing them as new, 

 but the key to the trouble was in the variable accessory cell, and its 

 solution works out the change I have indicated. 



BOOK NOTICE. 



Gli Insetti, loro organizzazione, sviluppo, abitudini e rapporti 

 COLL UOMO. — By Prof. Antonio Berlese, Director of the Royal Station 

 for Agricultural Entomology in Florence. Milan, Societa Editrice 

 Libraria, 1906. Published in parts at one lire each. 



With such excellent recent general American books on insects as 

 those of Kellogg and Folsom, it would seem difficult for a book in a 

 foreign language to meet any great demand in this country, yet the 

 excellent work of Professor Berlese, of which seventeen parts have already 

 been published, will undoubtedly prove a very important addition to the 

 libraries of all institutions in which advanced morphology is being studied, 

 and in all laboratories in which the studv of insects is undertaken from 

 any point of view. 



Berlese is a master, a man of broad ideas, thorough training, 

 admirable in technique, clear in demonstration, an excellent writer, and a 

 capable draftsman. His work when completed will be both sound and 

 comprehensive. It will comprise two volumes, of which the first will in a 



