HOLLAND, W. J.: A new species belonging to the genus Goodia (Lep.) . . 99 

 McAxEE, W. L.: Description of a new genus of Nemocera (Dipt.) . . 49 



District of Columbia Diptera: Scatopsidae 120 



The Periodical Cicada, 1919; brief notes for the Dis- 

 trict of Columbia 211 



MIDDLETON, WILLIAM: Some notes on the terminal abdominal structures 



ofSawflies 139 



Some suggested homologies between larvae and 



adults in Sawflies 173 



MYERS, P. R., with WADE, J. S.: Observations relative to recent recov- 

 eries of Pleurotropis epigonus Walker 



(Hym.) 202 



PARKER, J. B.: Notes on the nesting habits of Tachytes (Hym.) .... 103 

 PORTER, B. A. and ALDEN, C. H.: Anaphoidea conotracheli Girault (Hym.) 



an egg parasite of the Apple maggot 64 

 SHANNON, RAYMOND C.: Another anomalous Dipteron added to the 



Rhyphidae 50 



SNODGRAS, R. E.: The mouth parts of the Cicada 1 



THOMSON, W. R., and THOMSON, M. C.: Studies of Zenillia roseanae 



B. & B. A parasite of the 

 European corn borer (Pyrau- 



stanubilalisllb.) 127 



WADE, J. S., and MYERS, P. R.: Observations relative to recent recoveries 



of Pleurotropis epigonus Walker (Hym.) 202 



W T ALTON, W. R.: Entomological drawings and draughtsmen; their relation 

 to the development of economic entomology in the 



United States 69 



ZWALUWENBURG, R. H. VAN: Melanotus hys/opi, n. sp. (Coleop.) .... 210 



iv] 



