X vv & -«. cJT ^ 



CONTENTS OF VOLUME XXV 



Page. 

 COCKERELL, WiLMATTE P., 



Collecting Bees in Southern Texas 187 



Cole, Frank R., 



Notes on Osten Sacken's Group Poecilanthrax, with De- 

 scriptions of New Species dj 



Crampton, G. C, 



A Phylogenetic Study of the Terminal Abdominal Seg- 

 ments and Appendages in some Female Apterygotan and 



Lower Pterygotan Insects 225 



Davis, Wm. T., 



Two New Cicadas from Lower California, Mexico 6 



Ammodonus Fossor on Staten Island 126 



Sonoran Cicadas collected by Harry H. Knight, Dr. 

 Joseph Bequaert and others, with Descriptions of New 



Species 203 



Dickerson, Edgar L., 



Notes on Leptobyrsa Rhododendri Horv 105 



Dickerson, Edgar L., and Weiss, Haruy B., 



Idiocerus Scurra Germ., a Poplar Leaf hopper 218 



Fall, H. C, 



New Dytiscidee 163 



Felt, E. P., 



New Gall Midges 193 



Forbes, Wm. J. M., 



The Genera of Hydriomeninae of the United States 44 



Gibson, Edmond H., and Wells, Emma, 



The Genus Ophiderma Fairm 199 



Hungerford, H. B., 



Food Habits of Corixids i 



Life History of a Boatman 112 



Leng, Charles W., ^ 



A New Variety of Scaphinotus 34 



Syncalypta Spinosa in North America 128 



Marchand, Werner, 



Notes on the Early Stages of Crysops 149 



Olsen, Chris. E., 



Notes on Drseculacephala Inscripta Van Duz 215 



111 



