

to a butterfly I induced a spider to follow it at least a rod in his mad 

 endeavor to obtain the coveted prize, 



to the perfect insect, that this spicier subsists almost entirely upon 

 Oeneis semidea during its various stages. One always see- them search- 

 ing about among the rocks or sedge, apparently hunting for the eg::, 

 larva or perfect insect in hiding, and even when it is bo cold and damp 

 that the butterflies are chilled and scarcely move, the spiders do not seem 

 to be affected but act as if it was their golden opportunity to obtain a 

 dinner, and search for it at that time with unusual vigor. As my time 

 and means were limited perhaps it would be well for future collectors 

 who visit this locality to study more closely and carefully this peculiar 

 spider in this bleak and bare region. Perhaps, like the butterfly, 



which with the receding glaciers found conditions and food favorable 

 for its existence only on the tops of our highest mountains.— Smellky 

 W. Dehtok, Wellesley, .Mass. 



Biology of the Chalcididze.— Mr. L. O. Howard 1 has published 

 an extremely interesting paper upon a subject concerning w hi eh he 

 speaks with the authority given by years of careful study. 



• present knowledge concerning 





tories of the interesting hymenopterous parasites of the ta 



didae. The scope of the discussion is indicated by tin i 



the sub-headings: The insects and stages of insects infested by Chal- 



'The Biology of the Hymenopterous insects of the family Chalcididx, by L. O. 

 Howard. Proc. U. S. Nat. Mas., No. 881. 



