138 HUGH GLASGOW. 



lives of all of which have been dissected and studied; each species 

 usually representing a large number of individual dissections. 



It will be highly desirable to dissect a much wider range of 

 species than is included in this list before making any final 

 generalizations, and all alcoholic or preferably living material 

 that any reader may be able to contribute to supplement this list, 

 especially in the Lygaeidae or Coreidae, will be very welcome 

 indeed. 



Many of the species already dissected were obtained through 

 the kindness of Mr. C. A. Hart, of the State Laboratory of 

 Natural History, to whom I am greatly indebted. I wish also to 

 thank Mr. L. M. Smith and Mr. W. P. Flint, both of the Illinois 







state entomologist's office, for much valuable assistance in 

 securing material for the work. 



The following are the species that have been dissected so far 

 in connection with this problem: 



Pentatomidae. 



Brochymena gitadripiistulata Fabr. 

 Ettschistus fissilis Uhl. 



/ 



Euschistus servns Say. 

 Euschistus variolarius Pal. Beauv. 

 Murgantia histrionica Hahn. 

 Nezara hilaris Say. 

 Thy ant a custator Fabr. 

 Thyanta preditor Fabr. 

 Peribalus limbolarius Stal. 

 Hymenarcys cequalis A. & S. 

 CEbalus pugnax Fabr. 

 Cosmopepla carnifex Fabr. 

 Neottiglossa undata Say. 

 Mormidea lugens Fabr. 

 Ccenus delius Say. 

 Proxys punctulatus Pal. Beauv. 

 Podops cinctipes Say. 

 Podisus maculiventris Say. 

 Perilloides circumcinctus Stal. 

 Scutelleridse. 



Homoemus proteus Stal. 



