Occasional Papers of the Museum of Zoology 33 



near the preserve. It was not found in numbers anywhere. 

 Hancock reports it from Lakeside in June. 



Acrydium hancocki Morse. ^*' 



Warren \\'oods, June 25 to July i, 1919, 4 males, i female. 



These specimens were found in a sunken road of sandy clay, 

 partly filled with dead leaves, and bordered on each side by 

 weeds and low bushes. They were all taken within an area 

 of a few square yards, where the road emerges from a second 

 growth woods of small oaks and maples, and descends rather 

 steeply from the upland to the Galien River flood-plain; the 

 five specimens are the result of several hours' collecting al 

 various times. Taken in company with A. ornahim. 



Acyydiuui arenosum august um (Hancock). 



Warren Woods, June 20 to September 3, 1919, 21 males, 18 females, 

 I immature specimen ; July 3 to 16, 1920, i male, i female. 



Sawyer Dunes, July 3 to August 31, 1919, i male, 3 females; Julj 

 II, 1920, 2 males. 



This is the commonest species of the genus in this region. 

 It was found to be most abundant on sand and mud shores 

 along the Galien River and about the margins of ponds in 

 both the dime and inland regions. It was also taken on a dry, 

 sandy clay road at the margin of second growth woods ; on 

 bare dry mud trampled by cattle ; among mud-bar and sand- 

 bar herbage ; among the low vegetation springing up in dry 

 creek beds ; on moist muddy patches and among low herbage 

 in the flood-plain forest; from the mucky margins of a pool 

 in the edge of a buttonbush swamp in the Galien River flood- 

 plain; and in the low, wet forest surrounding one of the dune 

 ponds. 



Recorded by Hancock as Tetrix ohscurus from Lakeside, 

 September 18. 



^f' Determination verified by J. A. G. Rehn. 



