THE CANADIAN ENTOMOLOGIST, 175 



known lo me, this gall is not yet described from the U. S., and is very 

 similar to those of A. millefolium described by Mr. Fr. Loew, Verhdl. 

 Wien. Z. B. Ges., 1878, vol. 28, p. 130, which is to be found in Baron 

 Thuemen Herbar. mycolog. oeconom. Suppl., I., No. 60, Our collection 

 possesses a specimen by Prof Thomas with the indication of Tylenchus 

 (Anguilbda) millefolii Loew. At first I believed to see also in Prof. 

 Farlow's specimens, besides the Phytoptas, some Ajignillula. But the 

 polarised light showed directly that I had mistaken some fragments of the 

 fine white hairs ior Afiguilhda; the polarised light would have shown 

 directly the muscular apparatus in the Anguillula. It is nevertheless 

 probable that other plants of Achillea may contain the Tylenchus. I 

 believe that the galls before me may have contained before a Cecidomyia, 

 though the European species is not yet recorded from the U. S. As 

 Achillea millefolium is common in the north of the U. S., I desire to 

 draw the attention of Entomologists to this plant. The European litera- 

 ture on the parasites of A. inillefolium is somewhat large. 



ENTOMOLOGICAL CLUB, A. A. A. S. 



The Club met at Buffalo, N. Y., on August 17, 1886, at the rooms of 

 the Buffalo Society of Natural History, 14 members being present. 



The session continued at intervals during the meeting of the A. A. A. S. 

 The following persons were in attendance during the meeting : J. A. Lint- 

 ner, Albany, N. Y. ; J. H. Comstock, Ithaca, N. Y. ; S. A. Forbes, Cham- 

 paigne, 111. ; L. M. Underwood, Syracuse, N. Y. ; T. B. Stowell, Court- 

 land, 111. ; Rev. R. Benjamin, Cincinnati, O. ; E. W. Claypole, Akron, 

 O. ; Dr. J. B. Tweedale, St. Thomas, Ont. ; D. S. Kellicott, E. M. 

 Chamot, O. Reinecke, C. D. Zimmerman, Ph. Fischer, E. P. Van Duzee, 

 Buffalo. 



The Entomological Society of Ontario was duly represented by Mr. 

 Wm. Saunders, Rev. C. J. S. Bethune, Mr. J. Alston Moffat, and Mr. E. 

 Baynes Reed. 



The President, Prof. J. A. Lintner, took the chair, and Mr. E. B. Reed 

 acted as Secretary in the absence of Mr. J. B. Smith, of Washington. 



