128 Psyche [October 



appearance of them this year: Freetown, Mass., near Fall River, 

 Russell, Mass., Tolland, Conn., State Line near Monson, Mass. 

 Mr. Johnson concludes that the brood has become extinct. 



Mr. J. H. Emerton spoke of a visit to the summit of Mt. Wash- 

 ington during the first week of July. Two new species of spiders 

 were found under small stones at about 5,000 feet elevation. 



Mr. L. W. Swett said that he and Mr. S. E. Cassino had visited 

 Mt. Washington as early as May 28 and again in August and found 

 many rare lepidoptera. 



Mr. C. V. Blackburn showed a gynandromorph of the Gypsy 

 Moth with the right side male and left side female, each half with 

 the usual size and colors of its sex. 



At the meeting of October 12, 1920, R. Heber Howe, Jr., men- 

 tioned the finding of eight species of Dragon-flies new to New 

 England and showed maps giving their known distribution in 

 North America. 



Prof. W. M. Wheeler gave an account of his visit last summer to 

 the station of the New York Zoological Society 50 miles up the 

 Essequibo River in the forests of British Guiana. One of the great 

 sources of entomological interest was a leguminous tree, Tachi- 

 galia, with long pinnate leaves in the hollow petioles of which live 

 great numbers of Coccids, the excretions of which attract swarms of 

 ants and other insects, including a social beetle, and these insects 

 draw around them dipterous and hymenopterous parasites of many 

 kinds. As these trees become larger and their wood harder they 

 become the homes of great colonies of ants. 



Dr. Wheeler found one morning a decayed tree filled with a 

 great colony of the ant Eciton hnrcheUi. As they were driven out by 

 smoke, clusters of them held together around large cocoons con- 

 taining male pupse. The colony finally settled in two large masses 

 in each of which was a freshly matured female. Specimens of the 

 ants were exhibited. 



Collecting notes were read and discussed by several members. 



Mr. A. F. Burgess, Secretary of the Association of Economic 

 Entomologists, said that enough copies of the Record of Economic 

 Entomology to 1915 had been sold to pay the expense of printing 

 and he was now soliciting subscriptions to a supplementary volume 

 bringing the record up to 1920, the manuscript of which was ready 

 to publish. 



