232 IOWA ACADEMY OF SCIENCES. ADDITIONS TO THE LIST OF HEMIPTERA OF IOWA, WITH DESCRIPTIONS OP NEW SPECIES. BY HERBERT OSBORN. A number of additions to the Hemipterous fauna of the state have been made during the last year, either by collection or by the determination or description of specimens previously in hand, and although there are certainly many others to add it seems desirable to record such as have come to notice. In many cases the record greatly extends the range of the species as heretofore known. HETEROPTERA. FAMILY SCUTELLERID.E. Homcemns ceneifrovs Say. Rare, three specimens, Ames. Homcemus bijugis Uhler. Ames, Little Rock. FAMILY CYDNID^. Geotomus sp. FAMILY PENTATOMID^. Perillus circumcinctus Stal. One specimen, Sioux City, July 7, 1897. Mecidea longula Stal. One specimen, Sioux City, July 5, 1897. Trichopepla atricornis Stal. Little Rock and Ames. Peribalus piceus Dallas. Two specimens, Little Rock. Col-lected by E. D. Ball. Holocostethus abbreviatus Uhl. One specimen, Ames. Easily confused with Peribalus limbolarius. Banasa dimidiata Say. Ames, not common. FAMILY COREID^. Ghariesterus aatennator Fab. One specimen, Sioux City, July 5, 1897.