Dec, 1917-] Proceedings of the Society. 243 



Mr. Woodruff moved that a special meeting of which notification should 

 be sent through the Bulletin of the New York Academy of Sciences, be held 

 October 30, 1917; and that the regular meeting of November 6 be omitted. 

 The motion was carried. 



Greetings to the members from Mr. Beyer were received through Mr. 

 Sherman and from our former member, Charles R. Plunkett, through Mr. 

 Davis. 



Dr. Bequaert spoke of " Symbiotic Relations between Mites and Hy- 

 menoptera " illustrating his remarks, which will be printed in the Journal, by 

 specimens and blackboard sketches. 



The subject was discussed by Dr. Lutz, Messrs. Olsen, Dow, Davis, Engel- 

 hardt, Richardson and Woodruff, especially in relation to nymphal forms only 

 of the mites being known. 



Mr. Barber gave an " Illustration by Specimens of the Synoptic Keys to 

 the subfamilies, tribes and genera of Lygseida," referring to his own paper in 

 Psyche and using also blackboard sketches. 



Mr. Burns exhibited Papilio cresphontes and other rare butterflies from 

 Staten Island, his data being printed in Miscellaneous Notes. 



Mr. Engelhardt exhibited the larva of Papilio cresphontes found in Pros- 

 pect Park, Brooklyn, on Ruta graveolens, a member of the Rue family, intro- 

 duced from the Mediterranean region, and a previously unknown food plant 

 for the species. Its indigenous food plants in this latitude are Ptelea and 

 Xanthoxyhmi, and further south. Citrus. 



Mr. Nicolay reported his recent visit to the National Museum and the 

 extraordinary series of bred Buprestidse and Cerambycidas shown him by Mr. 

 Fisher. He exhibited also a box of flies collected this summer, among which 

 Dr. Bequaert noted Goniops chrysocoma, Great Falls, Va., June 10, 1917, and 

 Lepidophora ageriiformis, Boonton, N. J., September 3, 1917, as noteworthy 

 captures. 



Mr. Davis exhibited a box of grasshoppers and remarked upon their rapid 

 spread, saying that in 1904 Mr. Woodruff had found Conocephalus strictus 

 at Arrochar, Staten Island, on a dry hill where blue bent grass {Andropogon 

 virginicits) grew. Since that time the grass has spread widely on Staten 

 Island and the grasshopper has been found all over the island from St. George 

 to Tottenville. Melanoplus scudderi has likewise spread over the island in 

 similar dry places. 



Mr. Notman exhibited a box of Satyridse from the Adirondacks and a 

 box of Hemiptera that he had collected this summer for Mr. Barber. 



Mr. Leng exhibited a box of Ciciiidela repanda and C. 12-guttata also 

 collected by Mr. Notman in the Adirondacks this summer for the purpose of 

 disproving by the dift'erences in size, form and maculation, constant in a 

 large series, the varietal rank erroneously assigned the former in Genera 

 Insectorum. 



Mr. Davis spoke of the Cicadas and Orthoptera collected for him by Mr. 

 Notman and Dr. Bequaert of the Hymenoptera ; Mr. Dow remarked that the 



