Sept., 1922.] Proceedings of the Society. 137 



remarkable migrations of butterflies was another topic on which he dwelt, 

 the vast number involved on one occasion resembling a snow storm of 

 yellow flakes crossing the river. The great buprestid beetle Euchroma 

 gigantea was another common sight about the station; the great Sphex wasp 

 found nesting in a tree by Prof. Wheeler, one of the interesting discoveries 

 in life habits; the hand rails and bridges built by army ants, one of the remark- 

 able features of the insect life, 



Mr. Tee Van was followed with close attention and his remarks were 

 discussed by many of the members at the close of his lecture. 



Mr. Woodruff exhibited a green roach (Panchlora cubensis) introduced 

 from Cuba with bananas. Dr. Bequaert showed a female specimen of the 

 fossorial wasp lodium, taken by him at Plummer's Island, near Washington, 

 D.C., and passed in review the habits of the fossorial wasps of the sub- 

 family Spheginae. 



Mr. Wm. T. Davis referred to the fly Cuterebra buccata from Staten 

 Island, shown by him at the meeting of October 4, and stated that recently 

 he had been presented with a female Cuterebra cuniculi, also from Staten 

 Island, and collected by Mr. John W. Angell in the Clove Valley in June, 

 1921. This specimen was exhibited. He also showed two female Cuterebra 

 fontinella collected in August, 1921, in Martha's Vineyard, Mass., by Mr. 

 Frank Morton Jones, of Wilmington, Delaware, who wrote that he had 

 seen a third specimen in a spider's web, and that some years ago he had 

 taken another on the Island, which had been presented to Mr. Cresson of 

 Philadelphia. All were from the wooded portion of the Island, between 

 Vineyard Haven and West Chop. 



Meeting of November 15. 



A regular meeting of the New York Entomological Society was held 

 at 8 P.M., on November 15, 1921, in the American Museum of Natural 

 History, President John D. Sherman, Jr., in the chair, with 21 members 

 and seven visitors present. 



Dr. Lutz spoke on " Some Papers on the Color Vision of Bees " point- 

 ing out a defect in practically all the 5,000 papers cited in Knuth's Biology 

 of Flower Color, in that the colors were not measured by their wave length. 

 He gave some interesting figures showing the number of miles traveled by bees 

 in accumulating a pound of honey based on a statement published that to 

 get a pound, 62,000 flowers had to be visited. He then passed to the 

 apparently contradictory results of experiments conducted to show whether 

 or not bees showed a preference for blue flowers. The experiments of 

 Plateau & Rey and of von Friesch and von Hess were especially men- 

 tioned, as indicating that relative luminosity, rather than actual color as 

 known by the human eye, might be the controlling factor. Dr. Lutz also 

 spoke of the origin of flower colors, with which the vision of bees and 

 other insects has been theoretically connected as being concerned in the 

 general problem. Dr. Lutz's remarks were freely discussed by many of 



