CONTENTS 



New or Little-Known Crane-Flies from Japan (Tipulidae; 



Diptera). By Charles P. Alexander 1 



(Issued March 31, 1920.) 



A Revision of the Nearctic Sciomyzidae (Diptera, Acalyptra- 



tae). By E. T. Cresson, Jr 27 



(Issued March 31, 1920.) 



A Revision of the North American Species of the Genus Myr- 

 mecophila (Orthoptera; Gryllidae; Myrmecophilinae). 

 By Morgan Hebard 91 



(Issued March 31, 1920.) 



