loused ruga between the humeri which are lengthened and acutely produced. 



Coenus delius Say. Adult specimens of this species were not taken ear- 

 lie^ than July 4 and this seems to be one of the forms that averages later 

 in reaching maturity than many of the others. In no other species except 

 Apateticus cynicus was so great a percentage of nymphs taken, for, of the 

 thirty- three specimens collected, twenty are immature, some apparently be- 

 ing in the second instar. The species is most common in timothy and 

 clover fields and along simicultivated roadsides. Localities are as follows: 

 Lake Okoboji, Estherville, Sioux City, Emmetsburg, and Clarion. 



Neottiglossa undata Say. This species was not uncommon in open coun- 

 try on blue grass and along roadsides but it has not been found on native 

 prairie grasses. Occasionally a specimen was found in cleared spaces in 

 the woods. Nineteen of the eighty-two specimens secured are immature. 

 Nymphs in first and second instars were taken in the middle of July. 

 Specimens from Lake Okoboji, Estherville, Emmetsburg, Clarion, Sibley, 

 and Forest City. 



Neottiglossa sulcifrons Stal. The previously recorded specimens of this 

 species which was first taken in Iowa by the writer in 1915 were collected 

 in the southern one-fourth of the state so it was rather a surprise to dis- 

 cover specimens so far to the northward. In all, ten individuals were se- 

 cured from Lake Okoboji, Sioux City, and Emmetsburg. At Sioux City 

 seven of the specimens were collected in a hilly orchard thickly grown up 

 in long blue grass and timothy. This offered much the same sort of habitat 

 in which the species was found at Burlington in June, 1915. 



Cosmopepla himaculata Thomas. This was by far the most common 

 species in the vicinity of the Laboratory, particularly during June and 

 the first half of July. It was found commonly in wooded areas and along 

 the edges of woods especially in damp situations. On June 19, this species 

 was swept in great numbers from Black Mustard, {Brassica nigra Koch.) 

 growing in a small cleared area in the woods south of the Laboratory. 

 Over one hundred specimens were collected in a few strokes of the hand 

 net. On June 22, the species was found in some numbers on one of the 

 parsnips, (Thaspium aureum Nutt.). The localities represented are Lake 

 Okoboji, Forest City, Sibley, Silver Lake, Estherville, and Clarion. 



Acrosternum Mlaris Say. This large, green pentatomid of which but six 

 specimens were taken, was found most often in or along the edges of woods 

 on wild grape. Although the species has been taken at several places in 

 other parts of the state it appears to be nowhere common and in north- 

 western Iowa was taken only in the vicinity of the Laboratory. It is 

 sometimes found on wild cherry. 



Bana-sa dimidiata Say. Four specimens only of this species were col- 

 lected in similar situations to the preceding. One specimen is an adult 

 apparently but recently molted since the body integument was still very 

 soft when taken on August 22. This appears to be a woodland form and 

 the few specimens collected in the state have all been found under or taken 

 on deciduous trees. 



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