V / 
IOWA PENTATOMOIDEA 349 
Proc. la. Acad. Sci., Vol: I, Part lY, 1893, p%es 120-123, 
bert Osbom — Notes on the Distribution of Hemiptera”. At 
this time an additional species {Euryg aster alternaUis Say) was 
recorded for Iowa, thus raising the number of recorded Iowa 
species of Pentatomids to thirty-eight. Little more than locality 
records for this species and for other species- before recorded 
are given. Twenty-nine species of Pentatomids are mentioned in 
the paper but most are listed from other states. 
Proc. la. Acad. Sci., Yol. lY, 1896, pages 172-234, Herbert 
Osborn and E. D. Ball — ‘‘Contributions to the Hemipterous 
Fauna of lowa^’. Here, Ideality records for a few species of 
Pentatomids are given. 
Proc. la. Acad. Sci!, Yol. Y, 1897, pages 232-247, Herbert 
Osborn — “Additions to the List of Hemiptera of Iowa with 
Descriptions of New Species”. In this paper eight additional 
species are listed along with one genus, Geoiomus sp. of the 
family Cydnidae. 
Proc. la. Acad. Sci., Yol. YI, 1898, pages 36-39, Herbert 
Osborn — “Notes on the Hemiptera of Northwestern Iowa”., 
Four additional species are listed at this time so that the total 
number of recorded species to this date was fifty-one. Brief 
notes on the abundance, occurrence, etc., of the four newly re- 
corded species are given along with some similar data on other 
species of Hemiptera. 
Proc. la. Acad. Sci., Yol. YI, 1898, pages 40-46, H. E. Sum- 
mers — “A Generic Synopsis of the Nearctic Pentatomidse”. 
This work is largely a translation and rearrangement of the 
Nearctic genera and subfamilies as found in Stal ’s ‘ ‘ Enumer- 
atio Hemipterorum ” and affords a convenient table for de- 
termining the Iowa genera. 
Summing up, then, all the species of Pentatomoidea recorded 
by Osbom we find a total of fifty-one. His first list, which was 
also the first list for the state, gave a total of thirty-three 
species so that during the decade from 1888, the year of the 
appearance of the first list, to 1898, the year in which the last 
additions were made to this list, an increase of eighteen species 
is noted. 
