46 Trans. Acad, of St. Louis 



it reenter. It remained in only a little while, however, 

 came out ; went in once more and soon came out, and then 

 seemed to give up, as if disappointed at being unable 

 to rout the smaller one. I dug out the hole, and found 

 it six inches deep, without nest or provisions. 



Geopinus incrassatus Dejean. [E. A. Schwarz]. In a 

 stretch of gravelly bottom along Joachim creek at Hem- 

 atite, Mo., were a number of small sandy areas. On 

 three of these places the sand was heaped up, apprising 

 us of the burrows beneath. The sand had been pushed 

 out in plugs, as is usual with beetles. The holes were 

 about eight inches deep, and sheltered this beetle at the 

 bottom. 



Harpalus caliginosus Fab. [E. A. Schwarz]. This 

 beetle was found on a sunflower head which was almost 

 completely withered. The beetle had extracted a seed 

 and was diligently chewing it. It was placed in a vial 

 with an Epeolus bee; later it was discovered that the 

 beetle had completely chewed away the abdomen of the 

 bee. Another individual was found in the top of a small 

 rag-weed, munching at the seeds. Thus this ground 

 beetle, essentially carnivorous, sometimes takes the 

 trouble to climb plants for seeds. 



Harpalus erraticus Say. [E. A. Schwarz]. The pres- 

 ence of the burrow of this beetle was indicated on the 

 surface of the ground by several piles of loose earth 

 which still retained slightly the plug-shaped or sausage- 

 like form in which it had been pushed out. I followed 

 this burrow, about one-fourth inch in diameter, to a 

 depth of about thirty-six inches, and was rewarded by 

 nothing more than to find this beetle sitting complacent- 

 ly at the bottom. This was on September 12, 1917. 



Harpalus pennsylv aniens Dej. [E .A. Schwarz]. Hun- 

 dreds of these beetles were seen about the roads and 

 stubble fields, and about a dozen pairs in mating on 

 September 17, 1917. 



Di/neutes assimilis Aube. [H. S. Barber]. This 



