1 6 University of Michigan 



days the number of individuals of this species on the beach 

 was estimated at about 250 per mile. 



Apateticus bracteatus (Fitch). This more northern species 

 was much less common than the preceding, only three speci- 

 mens being found in the beach drift, and none being taken 

 elsewhere. 



Podisus maculiventris (Say). Rather common on various 

 bushes and in the grass about the Warren Woods, June 23 

 to September 3, and also found in the dune region. This was 

 one of the most common species in the beach drift. 



Podisus modestus (Dallas). Found in the same situations 

 about the Warren Woods as was the preceding, but not found 

 either in the dune region or in the beach drift. This species 

 was much less common than maculiventris. 



COREIDAE 



Acanthocephala tenninalis (Dallas). Adults were taken 

 occasionally from dense tangles of herbage in damp localities. 

 June 29 to September i, and some were also found on the 

 white ash {Fraximis americana). Nymphs were beaten from 

 a number of different trees, but were found in numbers only 

 on the ash. I have not been able to find any description of 

 these nymphs, which differ very strikingly in their early stages 

 from the adults. 



The first instar nymphs are metallic blue, shining, head and 

 thorax with a pale median line above, the thorax terete, the 

 pronotum with narrow, pale lateral lines. Thorax with eight 

 spines above, which are directed forward: four of these are 

 on the pronotum, two on the mesonotum, and two on the 

 metanotum; abdomen scabrous above, its margin foliaceously 

 lobed, especially on the posterior segments, and varied with 

 yellow. Antennae one-half longer than the body, yellow, the 



