2 ENTOMOLOGICAL SOCIETY 



U. S. Geological Survey, which shows a number of interest- 

 ing views of the effects of the San Francisco earthquake and 

 fire. A vote of thanks was tendered Mr. Davis for this gift. 



Mr. Quaintance exhibited the larva and work of an unde- 

 termined species of apple miner. This larva forms very long, 

 serpentine mines under the skin of the apple, greatly dis- 

 figuring the latter for sale on fruit stands and similar places. 

 The injury permits of rapid evaporation of water in the fruit, 

 and wilting soon begins along the course of the mine, which 

 in a week or ten days may be very pronounced, rendering 

 fruit practically worthless for usual market purposes. While 

 the species has not been observed to be common, it might under 

 favorable conditions become a pest of importance. During 

 the present year apples thus injured were brought in from 

 the Ozark Mountains by Mr. E. L. Jenne, and specimens of 

 injured fruit were frequently found in a shipment of several 

 barrels of apples from Niagara County, New York. The 

 work of what is undoubtedly this same insect has been pre- 

 viously mentioned, and figured/ 1 though from the cast head- 

 skin found it was thought to belong to the genus Lithocolletis. 

 The larva exhibited was taken from the mine, and the insect 

 apparently winters in the larval condition. The adult has not 

 yet been reared. The work of what is probably the same 

 larva had been frequently noted on vigorous, growing shoots 

 of apple, such as nursery stock and water sprouts of old 

 trees. Specimens of twigs similarly injured have also been 

 received from Dr. H. T. Fernald, from Massachusetts. A 

 photograph taken by Mr. S. W. Foster, showing the mines 

 on apples, was also exhibited. 



Doctor Hopkins remarked that he had seen a similar injury 

 in the skin of the orange at Nordhoff, Cal. The species caus- 

 ing it was said to be quite common there, and had inflicted 

 some damage. 



Mr. Busck, on examining the apple-mining larva, said that 

 it belonged undoubtedly to the genus Marmara, Clemens. The 

 larva of one of the species of this genus makes similar pecu- 

 liar mines just under the epidermis on shoots of willow in 



" Bui. 10, n. s., Div. Ent., U. S. Dept. Agric., pp. 87-88, fig. 19. 



