142 Journal New York Entomological Society. [Voi. xvii. 



Mr. Angell remarked on the introduction and spread of this species. 



Mr. Pollard stated that he had collected and examined 47 cocoons of Samia 

 cecropia collected near Watchogue, Staten Island, and 50 collected in the outskirts 

 of Brooklyn, and found that of the Watchogue pupae only one was normal, three 

 were parasitized by Ophion, ten parasitized by Braconids, ten parasitized by other 

 insects, nineteen destroyed by fungus, six destroyed by mice, birds, etc.; in the 

 Brooklyn pupse none was normal, five were parasitized by Ophion, eight parasitized 

 by Braconids, seven parasitized by other insects, eleven destroyed by fungus and 

 nineteen eafen by mice, birds, etc. 



Society adjourned. 



Meeting of May 4, 1909. 



Held at the American Museum at 8. 15 P. M. with President C. W. Leng in the 

 chair and sixteen members and one visitor present. 



The minutes of the preceding meeting were read and approved. 



Mr. Pollard announced the final program of the meeting to be held at New 

 Brighton, Staten Island, on Saturday, May 8, under the auspices of the Staten Island 

 Society of Arts and Sciences. 



Dr. Lutz announced that at a conference with the librarian. Dr. Tower, he had 

 been informed that all members of the Society would be permitted to borrow from the 

 library any monographs and papers they desired. 



Mr. Soulhwick invited the members to attend a three days' outing, May 28-30, 

 of the Torrey Botanical Club at New Baltimore, Green Co., N. Y. 



Mr. C. H. Roberts exhibited all of the known and several new species of the 

 genus Graphoderes belonging to the family Dytiscidje, and gave some interesting 

 notes concerning the results of his study of this genus. 



Among other things he said that this genus contained few species and all were 

 of good size. He spoke of the good distinguishing characters in the differences found 

 in the tarsal disks and cupules in the males. The check list of North American 

 Coleoptera, he was certain, was erroneous in respect to this genus. Horn had sup- 

 pressed fasciaticollis Harris, making it a synonym of the European species cineretis. 

 After examining two or three hundred specimens of this species, he had come to 

 agree with Dr. Sharp that our fasciaticollis is a distinct species. The structural dif- 

 ferences were compared by Mr. Roberts. Although occidentalis from Winnipeg 

 closely resembles aiistriacits, distinct differences in the tarsal claws of the male would 

 readily distinguish them. He had received from Mr. Leng a number of specimens 

 of a large species of Graphoderes from Nova Scotia and New J'oundland, which he 

 had at first thought might be Dr. Sharp's elatus, but had found differences in the 

 tarsal cupules which made it probable that this was a new species, larger than elattis. 

 The real elatus he had not seen. He also spoke of the progress he had been mak- 

 ing in the study of Haliplits. He had been able to separate several new species, 

 differentiated by good characters which had formerly been lumped with other forms. 

 He spoke of the characters used in distinguishing members of this genus. 



In reply to Mr. Leng's question as to whether there were any Dytiscidre common 

 to Europe and the United States, Mr. Roberts replied that the more thoroughly he 

 pursued his studies the more convinced was he that none was common to both 

 countries, with the possible exception of a few strictly boreal species which might be 

 circumpolar. He explained his method of mounting Dytiscidse for study. 



