20 



THE INSECT RECORD OF I9OO 



quietly for half an hour or so before taking its first flight. 



(Fig. 9-) 



The Monarch Butterfly^ was unusually abundant during the 



season. I mention it here chiefly to record a remarkable dis- 

 play made by this 

 species at Hampton 

 beach early in the au- 

 tumn. I saw great 

 numbers — hundreds, 

 if not thousands — of 

 these butterflies one 

 morning along the 

 bluft'at Little Boar's 

 Head, roosting upon 

 all sorts of shrubbery. 

 Apparently they had 

 been stopped by the 

 ocean on their south- 

 ward journey, and 

 put up for the night 

 upon the shore of the 

 bluft^. Toward noon 

 they flew away and 

 thereafter only a 

 straggler here and 

 there was seen. 

 Early in the season, when the leaves of the apple were first 

 unfolding, great numbers of the Apple Aphis appeared upon 

 them, and there seemed to be danger that much damage would 

 be done by this insect. Fortunately, however, the threatened 

 attack was averted, and I think the chief agency in reducing 

 the numbers of the plant-lice was that of the warblers and 

 other insectivorous birds which were extraordinarily abundant 

 last May, and stayed with us much longer than is usual on 

 their northward migration. The remarkable number of birds 

 — especially the warblers — was noticed by so many people 

 that it became a common topic of conversation. Everywhere 

 in the apple orchards one could see these tiny friends busily 



'^Danais plexippuslJvcvcik. (archippusYi}ox\(:vci^). 



Fig. 10. — The Monarch Butterfly. Reduced. 



