168 PROCEEDINGS OF THE CALIFORNIA 



Pieris calyce. W. H. Edw. 



I am inclined, from the examination of a specimen in Dr. Behr's collection, 

 to believe that this is the Spring generation of P. occidentalis. Dr. Behr's 

 specimen was taken by Mr. R. H. Stretch, in April, in Carson Valley, Nev., 

 and mine, from which the original description was made, and which is now in 

 the possession of Mr. W. H. Edwards, was caught by myself near Reno, Nev. 

 in the end of March. P. occidentalis occurs in the same localities in May, 

 June and July. 



P. Beckeri. W. H. Edw. 



This species is said by Mr. Strecker and others to be identical with the 

 Russian P. Ghlorodice, Hb., differing only by its larger size. In support of 

 this opinion, I may state that in my collection are two specimens ( ^ ) from 

 the Coast Range in Mendocino County, measuring only 1.50 inch in expanse, 

 while those from Virginia City are over 2.00 inches; the smaller examples in 

 no other respect differing from the Nevada specimens. 



Nathalis lole. Bois. 



This pretty little species, as well as the var. V. Irene, Fitch, must be in- 

 cluded in the list of Pacific Coast Butterflies, having been taken in some 

 abundance near San Diego by the late G. B.. Crotch, G. W. Dunn and others. 

 It is extremely abundant near Cape St. Lucas, and in various portions of the 

 country on the eastern side of the Gulf of California. 



Anthocaris Creusa. Dby. 



I have little doubt, from an examination of a figure by Mr. Butler of the 

 British Museum, kindly loaned to me by Mr. W. H. Edwards, that this spe- 

 cies is the same as A. Hyardis, Edw., which is well known to occur in the 

 Sierra Nevada, and in other high lands in this State. It is said by Dr. Behr 

 to be far from rare in the neighborhood of Oroville, and has been taken re- 

 cently by Baron d'Osten Sacken in the Yosemite Valley, and by myself near 

 Lake Tahoe. It is probably often confounded with A. Ausoniedes, but is 

 abundantly distinct. 



Anthocaris olympia. Edw. 



This exquisite species exists in my collection from Colorado, near the Utah 

 border, where it was taken by Mr. Winslow Howard. 



Anthocaris Reakirtii. Edw. 



I think I am wholly to blame if this should turn out, as I now suspect it to 

 be, only a form of Sara, Bdv., as it was entirely through my statements that 

 Mr. W. H. Edwards erected it to the rank of a species. The main points of 

 difference are the smaller size, the irrorations of the costa, the straight line 

 enclosing the orange apical spot, and the white females. But I find of late 

 years, that these characters are by no means permanent, and that all grada- 

 tions may be found. It is most probable, therefore, that Reakirtii is the 



