PSYCHE 



A JOURNAL OF ENTOMOLOGY 



Established in 1874 



VOL. XX 



DECEMBER, 1913 NUMBER 6 



Prodryas persephone Seudder. 



CONTENTS 



The Dragon-fly Genus Agrion (Calepteryx) in Colorado. T.D.A. Cockerell 173 



Didactylomyia capitata, sp. nov. E. P. Felt 174 



The Alimentary Canal of Flata and other Homoptera. J. C. Kershaw 175 

 On the Early Stages of Some Western Catocala Species. Wm. Barnes 



and J. McDunnough 188 



The Distribution of Some Species of Drosophila. C. W . Johnson . . . 202 



Note on Two Preoccupied Muscid Names. A. L. Melander 205 



Book Review 205 



Exchange Column , 206 



Morty., ' 

 JAN 18 1914 



