60 PROCEEDINGS OF THE CALIFORNIA 



Regular Meeting, June 5th, 1876. 

 President in the Chair. 

 Thirty-seven members present. 



The following new members were elected: Rudolph Thor- 

 mann, L. L. Hawkins, Walter W. Danuenberg, Edward N. 

 Moor, and Robert Chalmers Lord. 



Donations to the Museum: From E. S. Holden, lignite 

 from coal mine, Alameda County. Bog iron ore from Cala- 

 veras County; portion of tarantula nest. From Thomas 

 Holmes, red hematite from Nevada. From C. D. Gibbes, anthra- 

 cite coal from Pennsylvania. From A. B. Stout, trachite from 

 Sonoma County. D. Buck presented silver ore from Lee District, 

 Inyo County,' Cal. From Henry T. Compton, fifty eggs. From 

 W. N. Lockington, four specimens of fish, and < ggs of the spotted 

 shark. From T. J. Butler, Arizona parasitic plant. Bamboo 

 plant from Professor Davidson. From James Lick, fossil tooth 

 found in digging road to new observatory on Mt Hamilton. 



Henry Edwards presented a paper on Pacific Coast Lepidoptera, 

 No. 17.' 



Pacific Coast Lepidoptera— No . 17. On the Transform- 

 ations of Colias (Meg'aiiostoma Keak) Eurydice, Bdv, 



BY HENRY EDWARDS. 



Some five years since I observed that the females of this rare and beautiful 

 butterfly were in the habit of hovering over the singular Legnminose plant, 

 A iiorpha caJiformca, Torrey, and upon one occasion, I thought I detected one 

 in the act of laying her eggs, but the most careful search for such demonstra- 

 tion, though followed over the whole bush by the aid of a pocket lens, failed 

 to establish the fact, and I believed that I had been deceived, and that the 

 food-plant of the species must be sought for elsewhere. Two years ago, 

 however, the same circumstances re-occurred, and in this instance, I noticed 

 six different females alight upon bushes of Amorpha, and proceed as insects 

 usually do in the process of the deposition of eggs. I again 'searched these 

 bushes, and again without success, and I was led to the somewhat wild conclu- 

 sion that the eggs are deposited at random, and allowed to drop to the ground 

 at the base of the plant; the instinct of the parent trusting to the power of the 



