Cl|^ f anatlkif XittomolaiEibt. 



VOL. XXIII. LONDON, NOVEMBER, 1891. No. n. 



OFFICLAL MINUTES OF THE MEETING OF THE ENTOMO- 

 LOGICAL CLUB OF THE A. A. A. S., 1891. 



( Continued from page 222. ) 



August 20, 1891. 

 The Club met pursuant to adjournment at 9 a. m.. President Osborn 

 in the chair. Eighteen members present. The minutes of the first day's 

 meetings were read, amended and approved. 



Mr. Lintner spoke on 



The ^Pear Midge, ( Diplosis pyrivora) in New York. 



It had been brought to his attention as an injurious species during the 

 present year. It has been abundant at Catskill, and in small numbers 

 has extended to within 20 miles of Albany. After careful search he has 

 found a single infested pear at the latter city. He gave a history of the 

 investigations made in this country on the species, and detailed all that 

 was known concerning its life history. The character of the injury done 

 was carefully described and specimens were exhibited. He also gave a 

 history of the experiments made to control the species, and spoke 

 approvingly of a suggestion that some application to completely blight 

 and destroy the blossoms of infested orchards, more particularly the 

 Lawrence trees, be made to exterminate the pest. It is so numerous, 15 

 to 35 larvpe in a single pear, and 90 % of the entire fruit infested, that he 

 ranks it among the most injurious, and with the pear psylla the most 

 serious obstacle to pear growing in New York. 



The larvae mature about the first of June. They then emerge from 

 the pears, usually during or after a rain, drop to the ground and bury 

 themselves a short distance. In 10 days they make a cocoon covered 

 with grains of sand; but how long they remain before pupating he could 

 not say. He asked whether Mr. Smith's statements concerning methods 

 of oviposition made before the Association of Economic Entomologists 



