Occasional Papers of the Museum of Zoology 15 



Tliyanta custator (Fabr.). One, swept from ragweed at 

 Bridgman, July 12. A second specimen was found in the 

 June beach-drift (Carrol Rawcliffe). 



Acrostcrnum pennsylvanicum (De Geer). A single indi- 

 vidual of this species was swept from low vegetation at the 

 base of a dune at New Buffalo, September 2, 1919. No other 

 specimens have been taken in Michigan, as far as I am aware. 



AcroSiternmn hilare (Say). Nymphs were fairly common 

 in the Warren Woods during early July, and a number oi 

 adults were beaten from trees of various species, August 31 

 to September 3. This species occurred in the beach drift in 

 fair numbers during the first half of July, but no individuals 

 were taken after July 22. 



Banasa diiuidwfa (Say). One specimen from the Warren 

 Woods, July 15, 1920 (T. H. Hubbell). 



PerUlus bioculatus (Fabr.). Two specimens were taken 

 from the beach-drift, July i (C. Rawcliffe) and July 4 (Hus- 

 sey). One individual of the variety P. b. claudns (Say) was 

 also taken on the beach, July 14. 



Rhacognathiis aiiicricaiiiis Stal. One mutilated individual 

 of this very rare species was found in old beacli-drift near 

 Sawyer, July 4. 1920. This is the easternmost record for the 

 species. 



Apateticiis cyiiicits (Say). Nymphs which probably should 

 be referred to this species were common on the maples in the 

 Warren Woods during early July, and one adult female was 

 beaten from a maple there on August 31. No other specimen?, 

 were taken by ordinary collecting methods, yet this form was 

 by far the most abundant of the beach-drift of early July : 

 it was estimated that 80 per cent of the Hemiptera washed 

 up between July 7 and July 15 were A. cyiiicits, and on some 



