Contents of Volume XVI. 



ARTICLES. 



Adams, C. F., 



Notes on North American Species of Crassiseta V: Ros. 151 

 Beutenmueller, William, 



A New Cynipid from Arizona . . . . .45 



Beyer, G., 



Notes on Oncideres quercus Skinner . . . -32 



Brues, Charles T. , 



Is Mutation a Factor in the Production of Vestigial 



Wings among Insects? ...... 45 



Some New North American Phoridae . . . .199 



Burrill, A. C, 



A Slave-making Foray of the Shining Amazon (Poly- 



ergus lucidus Mayr. ) . . . . . .144 



Coleman, George A., 



Coccidae of the Coniferae. Supplement No. 1. De- 

 scription of Two New Species ..... 197 

 Davis, William T., 



A New Orchelimum from Staten Island and New Jersey. 222 



GlRAULT, A. ARSENE, 



Length of the Life-cycle of Pseudopyrellia cornicina 

 Fabricius for a Single Generation, with Record of a 

 Parasite. . . . . . . . .15 



Grossbeck, John A., 



New Moths of the Family Geometridae. . . 19 



Kearfott, W. D., 



New North American Tortricidae and Tineina . . 167 



Leng, Charles W., 



Notes on Coccinellidae. Ill . . . . -33 



Mitchell, Evelyn Groesbeeck, 



Description of Nine New Species of Gnats ... 7 



