34 University of Michigan 



Paratettix cucullatus (Burmeister). 



Warren Woods, June 20 to September i, 1919, 11 males, 19 females; 



July 3 to 16, 1920, 6 males, 15 females. 

 Sawyer Dunes, June 22 to July 3, 1919, 4 males, 5 females; July 9 



to II, 1920, 10 males, S females. 

 Harbert, July 13, 1920, i male, 2 females. 

 New Buffalo, June 30, 1919, 3 males, 3 females ; July 5, 1920, i male. 



The most abundant Tetrigid of the region. Found in nearly 

 the same localities as Acrydimn arenosum angustnm; some- 

 what less common than that species in the drier situations, 

 but much surpassing it in numbers in the wetter habitats. 

 Very abundant on the moist margins of streams and ponds 

 in both the dune and inland regions. Several specimens were 

 taken on the beach of Lake Michigan, on moist sand flats 

 beside the mouths of the Bridgman and Sawyer creeks ; a 

 single specimen was found in beach drift. Others were taken 

 by sweeping in the margins of sandy reed and sedge marshes 

 at New Bufifalo. 



This series exhibits a considerable amount of color varia- 

 tion. The majority of the specimens are greyish or warm 

 brown in color, most of them being somewhat mottled ; but in 

 a series from one of the dune ponds the color varies from 

 light brown with a brick red blotch across the humeri to a 

 form with almost solid black pronotum marked with an incon- 

 spicuous light stripe along the margins of its apical portion. 

 The black "saddle-mark" is more or less distinctly present in 

 a little over half of the 85 specimens. 



BATRACHIDINAE 



Tettigidea lateralis parvipennis (Harris). 



Warren Woods, June 20 to August 30, 1919, i male, 2 females, i 

 immature specimen ; July 3 to September 7, 1920, 4 males. 



Sawyer Dunes, June 24 to August 31, 1919, 4 males, i female; July 

 II, 1920, I female. 



New Buffalo, September 2, 1919, i male, 2 females. 



