208 Psyche [December 



NOTE ON TRICRANIA SANGUINIPENNIS SAY 

 (COLEOPTERA). 



By C. a. Frost, 

 Framingliam, Mass. 



On March 30, 1912, a large number of bees were noticed flying 

 about a sunny bank in a shallow cut on the line of the Boston 

 Water Works Conduit in the Town of Sherborn. It was in a run 

 out and sandy pasture where the burrows could easily be seen 

 amid the sparse grass by the white sand thrown out in digging. 

 The bees were flying about very actively close to the ground, 

 occasionally alighting and entering the burrows. 



As I stood watching them I noticed a number of red insects 

 scattered about; these proved to be Tricrania and in a few minutes 

 I picked up thirty-two males and thirteen females of this inter- 

 esting genus. They were found only on the east end of the bank, 

 overlapping but very little the area occupied by the bee burrows 

 and toward the west, from which direction a strong wind was 

 blowing. None at all were found where the holes and bees were 

 most abundant. 



The beetles were crawling about quite actively, but I did not 

 see any in copulation nor any evidences of eggs. A few adults 

 were found beneath dry cow dung and one beneath a small stone. 

 Only a few were seen in close proximity to any of the holes, and 

 none of the bees were seen to molest them. 



Specimens of the bees were sent to Mr. John H. Lovell of 

 Waldoboro, Maine, who kindly identified them as Colletes com- 

 pactus Cress. 



CORRECTION 



In the paper on "Mites Associated with the Oyster-Shell Scale" by II. E. 

 Ewing and F. L. Webster in Psyche, Aug, IQI'a, Figure 2, p. 128 is incorrectly 

 named. This mite is Monieziella entomophaga Lab. — Editor. 



The Index and Title page to Vol. 19 will appear as a supplement to the 

 February', 1913, issue. 



