74 THE INSECT RECORD FOR I902 



nests being very rarely seen. Nor did we hear anything of 

 the White-winged Bibio 1 — the fly that was reported in the 

 Record for 1901 as having attracted so much attention. 



The American Tent Caterpillar 2 seems to be slowly in- 

 creasing in numbers with each passing year. In 1901 the 

 nests were noticeably more abundant than in 1900, while in 

 1902 I should say they were somewhat more numerous than 

 in 1901 . The work of birds, particularly the Baltimore Oriole 



The American Tent Caterpillar. 



and the Black-billed Cuckoo, in keeping them in check was quite 

 noticeable. The easiest way to destroy these insects is to 

 crush the caterpillars in the nest when it is small, or if it be 

 on a little twig to cut it off and stamp it under foot. 



The Oyster-shell Scale 3 still' continues its attack upon 

 the apple orchards of New Hampshire. While this insect is 

 by no means so dangerous as the San Jose Scale, it has power 

 to kill trees when unmolested and its presence should not be 

 tolerated in a young orchard. Spraying with kerosene emul- 

 sion in June when the young lice are wandering as white 

 specks over the bark will kill them ; or some of the various 

 winter washes used against the San Jose Scale may be applied. 



iBibio albipennis Say. 

 ^Clisiocampa americana Harris. 

 l Mytilaspis pomorum Bouche\ 



