THE CANADIAN ENTOMOLOGIST. 215 



little. It is an irregular oval patch, measuring approximately 5 

 mm. in breadth by 2 mm. in depth. This at once distinguishes 

 it from any other Eiipithecia known to me. 



The broad, whitish band at the outer third, which is a dis- 

 tinguishing feature of bifasciata is not present in harlequinaria . 

 Apart from the difference in maculation, they also differ in time 

 of emergence. My two specimens of harlequinaria were taken 

 May 2nd, 1915, and May 22nd, 1914, (worn), respectively, and the 

 type in the Provincial Museum bears a label in Dr. Dyar's hand- 

 writing: "20th May, 1903." The three specimens of bifasciata 

 from Mr. Cockle bear dates June 7th, 1903; June 17th, 1907; and 

 July 3rd, 1910, and Dr. Dyar's types were June 13th and 25th, so 

 that it is quite evident that there is a full month's difference in the 

 time of their appearance. 



Further I have no record of bifasciata being found west of the 

 Cascade Range, and all the specimens of harlequinaria that I 

 know of, have been taken on the immediate coast. As regards 

 the latter species it must be exceedingly rare, as I can find no record 

 of any specimens being taken at Victoria between those taken by 

 Mr. E. M. Anderson in 1903, and the two that I captured in 1914 

 and 1915. I have seen all the chief collections in Vancouver and 

 on Vancouver Island, but none of them contain any specimens of 

 harlequinaria. 



In conclusion I think that I have adduced enough evidence 

 to prove conclusively that harlequinaria and bifasciata are two 

 distinct species. 



Author's Note. — This article was written eighteen months 

 ago, but was accidentally mislaid and only recently found. I wrote 

 to Messrs. Barnes and McDunnough, pointing out these dif- 

 ferences about a year ago, and they have listed them as distinct 

 species in their new Check List. 



BOOK NOTICE. 



Field Book of Insects — By Frank E. Lutz, Ph. D., As- 

 sociate Curator, Dept. of Invertebrate Zoology, American Museum 

 of Natural History. Pp. 509. About 800 illustrations, many in 

 colour. G. P. Putnam's Sons, New York and London. 1918. $2.50. 



This is a companion to the Field Book of Wild Birds and 

 their Music, Field Book of American Wild Flowers and Field Book' 

 of American Trees and Shrubs, and its aim is to give the kind of 



