38 University of Michigan 



Biicnoa niargaritacca Bueno. Abundant in the large concrete 

 tank at New Buffalo, September 2. 



Biicnoa elegans (Fieb.). Very common in the same locality 

 as the last, June 30 and September 2 ; a few specimens were 

 also taken from the New Buffalo marsh on June 30. 



Plea sti'iola Fieb. This little species was abundant in the 

 algal growths on the sides of the concrete tank at New Buf- 

 falo, both in June and September. Other specimens were 

 taken from the Bald Tom Pond, July 19, and from a small 

 woodland pool in the Warren Woods, July 4. 



Xepidae 



Nepa apiciilata Uhler. Two, from a cow-track pool in a 

 marshy pasture at the edge of the Warren Woods, June 28. 



Ranatra americana Mont. I took one individual of this 

 species in the outlet of a creek at New Buffalo, June 30, and 

 Mr. M. H. Hatch has given me one which he took from beach 

 drift near the same place, June 22. Xymphs which probably 

 were of this species were found on several dates during the 

 early summer in the ponds about the W^arren Woods. 



Ranatra kirkaldyi Bueno. Mr. Hatch has kindly given me 

 three specimens of this species which he took from a small 

 creek flowing out of the Bald Tom Pond, June 16, 1920. 



Belostomatidae 

 Bcnacns griscits ( Say). My only Berrien County si)ecimens, 

 some thirty in number, were picked up on the beach of Lake 

 Michigan during July, and Mr. Hatch has a good series which 

 he obtained from beach drift at New Buffalo on June 22. 

 The New Buffalo specimens probably came from the broad, 

 marsh-like expanse of the lower portion of the Galien River, 

 while those which came- ashore in the Sawyer Dune region 



