Vol. xxii] ENTOMOLOGICAL NEWS 327 



found. The period of life in beyeri as an adult, is evidently rather 

 hrief. Mr. C. R. Biedermann, Entom. News, vol. 18, p. 7, '07, has pub- 

 lished an interesting account of his experiences with beyeri in the Hua- 

 chucas. KARL R. COOLIDGE. 



AN INTERNATIONAL ANTI-LOCUST COMMISSION. "J. Lawrence- 

 Hamilton, M. R. C. S., of 30 Sussex Square, Brighton, England, sends 

 us a reprint from the London Financial News of February 13, 1911, 

 in which he urges the organization of an International Anti-Locust 

 Commission. He points out what an enormous amount of capital is 

 invested in Argentina and in the development of its agriculture, and 

 then shows the immeasureable damage done by the locusts, thereby 

 presenting a strong argument for a study of conditions which would 

 result in the practical handling of the locust problem. He refers to 

 the wonderful results which have come from the efforts to suppress 

 the mosquito, and claims that similar success can meet a fight against 

 the locusts." Bulletin of the Pan-American Union (Washington), 

 March, 1911, p. 401. 



THE GREEN TREE ANTS OF NORTH QUEENSLAND. Dr. R. A. O'Brien, 

 describing some of the habits of these insects at the meeting of the 

 Zoological Society of London, of May 3, 1910, said: The Green Tree- 

 Ant is found in the open forest country or "bush" on the edge 

 of the thick jungle or "scrub," along the sea-coast of Northern 

 Queensland. It is a very active pugnacious insect, from half to three- 

 quarters of an inch long, living wholly or almost wholly in trees. The 

 nest is built on the bough of a tree and consists of a very large 

 number of leaves, generally fresh and green. These are matted to- 

 gether with a gelatinous material exuded from larvae which the worker 

 ants bring up to the site of the projected nest, where other ants hold 

 the edges of adjacent leaves together. This process is repeated until 

 the bundle may be several feet in diameter. 



The bridge formed of the bodies of the ants shown on the [lantern 

 slide] screen was re-formed, when broken, by festoons of ants hang- 

 ing from the upper leaf until some of them, dropping from the fes- 

 toon, joined momentarily with others on the top of the leaf and twigs 

 below. Others quickly joined in strengthening the bridge until it was 

 about four ants' width and eight ants' length. Then the one leaf was 

 seen to be dragged slowly nearer the other, decreasing the bridge to 

 five ants' length, and at this stage it remained for several days, when 

 I left the place. The ants "on duty" in the bridge over which other 

 ants ran to and fro, carrying their "game" were watched carefully for 

 eighty minutes, and none in the center of the bridge was relieved dur- 

 ing that time a rather remarkable feat of strength and endurance. 



