FIELD NOTES ON TIGER BEETLES OF INDIANA. 451 



University also had a few vulgaris and one punctulaia which, supposedly, 

 had been collected near Greeneastle. 



Vermillion, Fountain and Montgomery Counties. In April, 1916, obser- 

 vations were made at various points along the Wabash river, between Ver- 

 million and Fountain counties. In every case C. repanda were found in 

 abundance in cornfields, over which a deep layer of Avhite sand had been 

 deposited by the over-flow of the river. This condition was especially no- 

 ticeable at the entrance to the river bridge opposite Perrysville. 



C. anrocisconensis were quite abundant along Cole Creek east of New- 

 town. The banks which were about four feet high and overlaid with black 

 sandy soil, were penetrated at various angles by numerous burrows. Large 

 groups of adults were feeding along the edge of the overhanging turf or en- 

 joying the sunshine along the banks. Others were copulating and depositing 

 eggs. 



Although two days were spent in Fountain and Montgomery coimties. 

 in the neighborhood of Mellott, Newtown and Linden, searching for other 

 species, no data were obtained. 



Carroll and Cass Counties. A comparative study of the old brood of C. 

 repanda along the Wabash river at Delphi (in June), and the emerging brood 

 at the junction of the Eel and Wabash rivers at Logansport (Aug. 22), 

 showed greater abundance of the latter under similar conditions. The 

 former spent their time in mating, depositing egs and collecting food, while 

 the latter were very unsocial and seemed to have no objer't in \'iew other than 

 obtaining food. 



No C. punctulaia were found in these counties during June; In August, 

 however, they were collected from every field visited. During a four hour 

 trip out to Clymers, thej' were observed in the following surroundings: — 

 in a cattle lot, in a wheat stubble field, among the scattered straw near an 

 old straw stack, in a meadow feeding under the grass at the edge of a pathway, 

 in a clover field, in a field of growing corn, and in newly plowed ground. 

 They were never found colonized but scattered here and there among the 

 vegetation. 



Miami County. Near Chile, special attention was given to a certain 

 wide valle3% -with steep bluffs on either side, through which ran a winding, 

 shallow stream. C . repanda swarmed the small sand bars and rocky edges of 

 the creek. 



The feeding habits of about thirty individuals were studied on a sandy 

 plot about five feet square. It was mid-August and the temperature was 

 about 100 degrees in the shade. When undisturbed the beetles spent their 

 time feeding in the shade under the grass surrounding the barren spot. At 

 the least provocation they would lush from the shady places into the barren 

 spot where they were free to take flight if necessary. Repeated observations 

 show that such beha\aor is common with a number of species which are 

 said to inhabit barren places. However, they really spend the greater part 

 of their unmolested time among the vegetation where the food is most 



