72 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



MEETING OF OCTOBER 6, 1910. 



The 243d regular meeting of the Society was entertained by 

 Mr. Banks at the Saengerbtmd Hall, 314 C Street, N. W., 

 on the evening of October 6, 1910, and there were present 

 Messrs. Banks, Barber, Bourne, Busck, Caudell, Crawford, 

 Dyar, Gahan, Gill, Hall, Heidemann, T. H. Jones, Knab, 

 McAtee, Quaintance, Rohwer, Sasscer, Schwarz, and Zimmer, 

 members, and Messrs. A. H. Jennings, of Ancon, Panama, 

 Parks, and Timberlake, visitors. 



The minutes of the 240th and 241st meetings were read 

 and approved. 



Dr. Dyar reported that owing to the fact that the dues of 

 the members for the present year had not been collected it 

 would not be possible for the Publication Committee to con- 

 tinue publishing unless arrangements were made for the pay- 

 ment of the printers. The matter was referred to the Execu- 

 tive Committee with power to act. 



Mr. Barber described an apparatus for collecting insects 

 at night: 



A SIMPLE TRAP-LIGHT DEVICE. 



[PLATE IV.] 



BY H. S. BARBER. 



Since the earliest history of entomology light-collecting 

 has been recognized as one of the most prolific methods of 

 securing specimens. Perhaps the commonest and most satisfac- 

 tory method is to avail one's self of a convenient window 

 overlooking brush or woodland, placing a lamp on a table 

 within and watching for the desirables to come without. But 

 in camp a very simple and much used method is to hang up a 

 white cloth (like a sheet) and throw the light from the lantern 

 upon it; the disadvantage, aside from the too frequent loss of 

 specimens about the light itself, being that its efficiency is 

 not the same in all directions. 



Many devices have been used to facilitate the collecting of 

 insects by light attraction at night. Various sorts of traps 

 for killing all specimens, or even for sorting out and saving 

 the specimens of a single group of insects, have been devised, 

 but so far as is known the following described arrangement 

 has not before been mentioned. Its object is not to entrap 

 specimens, but to provide a simple, compact, and easily ar- 



