Vol. XXV] ENTOMOLOGICAL NEWS 3 



and moved quite rapidly. The sky was darkened by threatening 

 weather, and this may account for their early appearance. At 

 subsequent times they were taken between the hours of 6.30 

 and 7.30 P. M., save one which was dug from a badger hole 

 in the day time by one of the party. 



Other adults taken and not mentioned above were found 

 along a cliff-like bank of the White Woman Creek, in Greeley 

 County. 



While the adults were taken along the clay banks and breaks, 

 the elytra were commonly found on the plains some distance 

 from any banks. 



The adult begins to search for food at sunset. One was 

 taken Aug. 17, 1910, and lived in captivity until Aug., 1911. 

 Careful notes were made on this insect's habits. It was kept 

 in an iron bucket in the Entomological Department Rooms. It 

 was first placed in an earthen crock, in which had been poured 

 a few inches of sand, but it was three weeks before it exca- 

 vated a burrow. This was on Oct. ist. It closed its burrow 

 to come out a week later, probably owing to the dry condition 

 of the soil. The latter being watered, the beetle drank eagerly, 

 its open jaws being pressed against the earth. It then buried 

 itself again. If the ground was allowed to remain dry for any 

 length of time, Amblychila would eventually be found at the 

 surface. On such occasions it drank and ate normally and even 

 eagerly, but at times went without taking food for a long while. 



Upon being placed outside the window on a cold day in win- 

 ter, the beetle became torpid but soon became active when 

 brought into the warm room. 



Concerning its feeding habits ; it seems apparent that owing 

 to its poor sight and lack of agility, it sometimes endures 

 prolonged fasts. It seems to rely more for guidance upon its 

 antennae than upon its eyes. When fed from a pair of forceps 

 it would usually take the insect in a gingerly, hesitating manner, 

 at other times made a frantic effort to locate and secure an in- 

 sect which had escaped its powerful jaws. Several wasps of 

 the genera Polistes and Pelopoeus were offered it. It did not 

 appreciate such morsels, however, and usually avoided them. 

 When hard pressed by an undesirable insect (held with a pair 



