Subfamily Asopinse 



Apateticm cynicus Say. Six nymphs and one adult of this largest of 

 the Iowa pentatomids were taken at Lake Okoboji only. The species seems 

 to be more typical of woodlands, apparently being most common in small 

 cleared areas in the woods or at the edges of woods. All the nymphs were 

 taken before the middle of July. As illustrating the predaceous propen- 

 sities of this species the following incident may be mentioned. On the 

 afternoon of July 4 while out collecting, two half grown nymphs of Apateii- 

 cus cynicus were placed in a small tin box about two inches square together 

 with two nymphs of Brochymena quadripustulata of about the same size. 

 A portion of a raspberry and also of a grape leaf was added to the box 

 which was not opened until the afternoon of July 8 when it was found 

 that nothing but the empty skins of the Brochymenas were left, the Apate- 

 ticus nymphs apparently having made a meal of them. 



Podisus maculiventris Say. Apparently not a common species in north- 

 western Iowa. But three specimens were taken at Lake Okoboji and Sib- 

 ley. At other points in the state it has conynonly been taken on clover 

 and timothy. 



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