38 IOWA ACADEMY OF SCIENCES. 



Mecidla lonr/ula Stal. A single specimen of this southern 

 species was taken at Sioux City from the crest of one of the 

 hills. I know of no previous record for this species above the 

 lower austral zone, but the Missouri valley doubtless furnishes 

 conditions more nearly like the south and provides for the 

 northern extension of such species. With this as an indica- 

 tion, we should hardly be surprised if Mirrr/antia Imtronka were 

 to appear in similar localities. 



Chariesterus antennator Fab., another southern species 

 belonging properly to the lower austral zon^, was taken at 

 same time and place as Mecklia longula. No other record of its 

 occurrence in Iowa. 



Harmostes reflexulus Say. Little Rock (Ball). 



Pamera vicina Dall. (?) A species of Pamera which is 

 tentatively referred here occurred in considerable abundance 

 at Little Rock. 



Palococoris svavis Reut. (?) Sioux City. Brachypterous 

 form. Described from Texas. 



Si/stratiotus atnericayius Reut. Little Rock (Ball). 



Largidea ojmca Uhl. This species is represented by a variety. 



Mimoceps gracUis Uhl. This handsome species was taken at 

 Little Rock, July 2d. 



Of the plains fauna, and belonging to the ujDper austral, we 

 have such species^^ as Homasmus bijujus, Thyanta custator, 

 Nysius californicusyPhelpsius altus, decorus, Driatura robusta, 

 gammaroidea, Dorycephalus vanduzei, Deltocephalus collinus, 

 albidus, reflexus, pectinatus, signatifrons, cruciatus^nflatus, 

 Athsanus punctatus, Lonatura catalina, Agallia uhleri.-iGrypona 

 cinerea. 



Of boreal forms we have Peribalus piceus, Lioderma bel- 

 fragei; of lower austral forms, Mecidia longula, Chariesterus 

 antennator. 



It does not follow that species not taken in the region do 

 not occur there, as collecting through the season and in 

 several seasons would be necessary to reach this point, but the 

 group has been collected so thoroughly at Ames that we may 

 be pretty sure that species found in the northwestern part of 

 the state, and not at Ames, are not distributed over the central 

 and eastern part of the state, and represent, therefore, a dif- 

 ferent fauna. 



While such a survey must necessarily be considered prelim- 

 inary, and the excuse for its presentation the probability that 



