1929] Proceedings of the Cambridge Entomoligal Club 
59 
PROCEEDINGS OF THE CAMBRIDGE 
ENTOMOLIGAL CLUB. 
Ten meetings were held in 1928, including one special 
meeting in September. The programs were as follows: Jan. 
10 : Dr. O. E. Plath, “Bumblebees, their Life History, Habits 
and Economic Importance.” Feb. 13: Professor J. C. Brad- 
ley, “Scoliidae, with Particular Reference to the Develop- 
ment of Antigeny of Some Species.” March 13: Dr. George 
Salt, “A Year in Colombia, South America.” April 10, Mr. J. 
H. Emerton, “Notes on Spiders Collected in 1927” ; and Mr. 
A. P. Morse, C. W. Johnson, and C. A. Frost, “The Distribu- 
tion of Insects in New England.” May 8, Mr. S. M. Dohanian, 
“Eighteen Months in Europe.” June 12, Dr. J. Bequeart, 
“Vespidae of the West Indies.” September 11, Summer col- 
lecting notes. October 9, Mr. W. J. Clench, “Collecting Ex- 
periences in Cuba.” November 13, Dr. George Salt, “Strep- 
siptera.” December 11, Dr. F. M. Carpenter, “The Fossil 
Ants of North America.” 
Eleven new members were elected during 1928, bringing 
the total membership to ninety-one. 
J. W. Wilson, Secretary. 
THE UNEXPECTED ACID TEST. 
While wandering along the banks of the Shawsheen River 
in Andover, Mass., one pleasant spring day I found a speci- 
men of Carabus vinctus Web. under a piece of board. I at one 
pounced upon it as a prize, for at that time I had taken but 
few of them, and brought it closer to my face for another 
gloating look. As I did so I experienced the sensation that 
might have been caused by half a dozen red-hot needles 
striking my face, and at once lost all interest in the beetle 
until I had wiped my face with alcohol and stopped the 
painful smarting. I then investigated and came to the 
conclusion that the pressure of my thumb and finger had 
caused the apices of the elytra to impinge one against the 
other and, acting like a released spring, threw the acid 
secretion from the beetle into the air eight inches or more. 
I was greatly surprised at the strength of this acid and 
would fear rather severe results if it should enter the eyes. 
C. A. Frost. 
