Vol. XXV] ENTOMOLOGICAL NEWS 7 



below the entrance, head downward and uninjured save that the 

 claws were gone from the fore-tarsi. The larva was in the rear 

 of the burrow and apparently unhurt. In number 2 the wings 

 of the Chalybion were found just in front of the larva. In 

 number 3 was found the frons of Cicindela. In number 4 the 

 wings and legs of Pelapoeus. In number 5 the larva was not in 

 the rear of the burrow but was found discolored and blackened 

 for the first two-thirds of its length and in a stupor, apparently 

 nearly dead. In referring to the notes of the night before, it was 

 found that this one had taken the Cicindela, and it was evident 

 that there had been a battle in which the rapid little tiger- 

 beetle had got beyond the plated armor of the larva in that 

 portion of the burrow where it widens out, and had won the 

 struggle. In number 6 the abdomen of the Mutillid was found. 



A table at the end of this paper gives these notes in a con- 

 cise form. 



As stated above, the extreme end of the burrow for a dis- 

 tance of two and a half inches was packed with refuse of for- 

 mer repasts. In several cases, as the sides of the burrows were 

 carefully shaved away, there was an opportunity to see the 

 larva naturally situated in its home. It was noted that as the 

 larva grabbed at an object, the head would fly up and back- 

 ward, the wave thus started would hump the back where the 

 sharp prongs of the dorsal side could grasp the walls of the 

 burrow. 



Four of the larvae of this colony were placed in holes made 

 for them in cans containing clay and accepted food normally. 

 Three were carried thus through the remaining camping trips 

 and brought safely to the laboratory and placed in vertical 

 holes in sandy soil. About a week later two of the larvae 

 blocked up the mouth of their tunnels so that the location of 

 the latter could not be well determined. The third did not con- 

 ceal its whereabouts but kept its burrow open. The larvae 

 were all dead by Feb., 1911. The stopping up of the holes may 

 perhaps be explained by the hibernating instinct of the larvae. 



