236 



The imago is found resting on the upper side of the leaves of 

 the raspberry, which this insect attacks. When the leaf is 

 touched the insect falls as if dead, but in two or three seconds 

 takes wing. It is very easily caught. 



The eggs seem to be placed between the coats of the leaf, by 

 the side of the ribs, and, as they increase in size, produce an oval 

 expansion of the under coat, and a discoloration of the cuticle of 

 the upper side, directly over the ego^. 



The larva appears early in May, on leaves that have a warm 

 exposure and are near the ground. It leaves the bush about the 

 time the fruit ripens, goes into the ground, forms around itself an 

 oval coat of earth cemented together, and remains till spring. 

 Larva taken at Cambridge, full grown, June 19, 1846. 



Dr. C. F. Winslow presented some freshwater fishes, 

 crustaceans, and mollusks from the Sandwich Islands ; 

 the first two were taken in the river Wailukee, in the 

 mountains of West Maui, seven or eight miles from its 

 mouth, and more than 1,000 feet above the sea ; they are 

 found in the midst of the most violent rapids ; the fish 

 are said by the natives not to be found near the sea. 

 The shells were taken from a ditch connecting the river 

 with the taro patches of the valley, three or four miles 

 from the sea ; collected in June. 



Dr. Bernstein, of Java, E. Indies, and Edward Nor- 

 ton, Esq., of Albany, were chosen Corresponding Mem- 

 bers ; George N. Briggs of Auburndale, and Edward 

 W. Codman of Boston, Resident Members. 



March 7, 1860. 



Dr. C. T. Jackson, Vice-President, in the Chair. 



Mr. C. H. Hitchcock exhibited a geological map of 

 Vermont, and explained the principal features of the 

 complicated geology of that State. 



