Occasional Papers of the Museum of Zoology 21 



stem of a beach grass, Calanioznlfa longifolia. 011 a fore-dune 

 near Sawyer, July 3. 



Gcocoris bullatus bullatus (Say). Very common in the 

 sand-clvmes, where numbers of individuals were seen running 

 about on the ground among the sparse grasses. I watched 

 with interest the behavior of two of these bugs in a disused 

 road at the back of the dunes : an adult was running about 

 among the grasses, and in all its erratic course it was closely 

 followed by a nymph of about the third instar. 



Geocoris nUginosus limbatus Stal. One individual was swept 

 from ragweed and Polygonum in a sandy field beside the War- 

 ren Woods, September 3 ; one was taken at Lakeside, July 13 ; 

 one was swept from grasses in a moist meadow in the dune 

 region, July 20; and several were taken from the ground in a 

 small clearing on the dunes, July 16. 



Hypogeocoris piceiis (Say). A single specimen was taken 

 in a sandy field behind the dunes, July 12. 



Phlegyas abbreviatus (Uhl.). One of the most abundant 

 Hemiptera in the grassy fields in all the collecting areas. 

 Nymphs were very numerous in July, and adults were taken 

 throughout the summer. 



Oedancala dor sails (Say). Common among the sedges and 

 cat-tails in marshy localities about the Warren Woods, in 

 moist meadows behind the dunes, and also in the marshes at 

 New Bufifalo and at Stevensville. 



Myodochus serripes Oliv. One nymph which undoubtedly 

 should be referred here was swept from luxuriant herbage near 

 a spring in one of the dune valleys, July 27. 



Herccus plebejus Stal. One individual only, taken at light 

 on the dunes near Bridgman, July 12, in the sassafras strip 

 between the pine and the black oak associations. 



Ligyrocoris diffu^us Uhler. Abundant during the summer 



