THE CANADIAN ENTOMOLOGIST. 229 



also been injurious in the same manner ; and, if there were not sufficient 

 food in the stem, the larv^ descended to the roots and tunnelled out 

 irregular channels on the surface. They pupated in the ground. A new- 

 attack had been observed on the "Irish potato," viz , by the Cabbage Plusia, 

 which had attacked the leaves. The same insect had been very injurious 

 to cabbages. In the Southern part of the State more harm had been 

 done by the Plusia than by the cabbage worm. At Mobile farmers had 

 complained that 50 per cent, of their melons had been injured by a 

 worm. ScolyUis riigulosus had been very abundant at Auburn in the 

 spring, attacking trunks which appeared to be perfectly sound. Onions 

 had been badly injured by a species of Thrips. Another species had also 

 been injurious to cotton plants. 



Prof. Cook stated that he had also seen a Thrips injuring onions in 

 Michigan. 



Prof Webster stated that he had studied ScolyUis rugulosus and had 

 found that it invariably attacked trees which were injured. In a single 

 instance, where the beetles had commenced operations on a sound tree, 

 he found that they afterwards left it. 



Prof. Cook made some remarks upon the effect of mild winters upon 

 insect presence. He had found cut-worms and saw-flies very abundant 

 in Michigan during the present season. He had also bred a new borer 

 from the black currant, /. e., the small longicorn beetle Hyperplatys ma- 

 cidatus. He had also found that the larvse of Aegeria tipuliformis had 

 been largely destroyed by a fungous growth like that of the white grub. 

 The leaves of cherry, pear and quince had been badly attacked by the 

 larvae of saw-flies, but they had been easily kept in check by applications 

 of road dust. 



Dr. C. M. Weed presented a paper upon the " Oviposition of Dedes 

 spinosus upon Ambrosia trifida." He also gave some account of the in- 

 sect, in all its stages, from specimens which he had bred. 



During the meeting a most interesting set of photographs was exhi- 

 bited by Prof. Webster, showing a likeness of Thomas Say, his birthplace, 

 the house where he lived during the greater part of the time he was writ- 

 ing his works, his tomb and an autograph. Prof. Webster had a few sets 

 of the photographs struck off" when his own were printed and is willing 

 to let entomologists have them at the actual cost of production. 



