CONTENTS. 



'. Page. 



SYNOPSIS OF PEkOMYIA ROBINEAU DESVOIDY, Malloch.. 121 



HABITS OF SPHECIUS SPECIOSUS, Davis 128 



COLLECTING LIBYTHEA BACHMANI, Bell 130 



RESPIRATION OF AQUATIC INSECTS (Continuation), Mutt- 



kowski 131 



HETEROPTERA IN BEACH DRIFT, Torre-Bueno 142 



NOTES ON MELASOMA AND GONIOCTENA, Davis 145 



NEW GENUS OF AGROMYZID^, Malloch 147 



BOOK NOTES i49 



EXCHANGES 150 



