216 



INSECT CALENDAR. 



Tree Cricket, 



The withering of the leaves when the corn is young, shows the 



presence of this pest. The beetles of various cylindrical Bark 



borers and Blight beetles (Tomlcus and Scolytus) appear again 



this m on til. During this 

 month the Tree cricket 

 (CEcanthus niveus, Fig. 267) 

 lays its eggs in the branches 

 of peach trees. It will also 

 eat tobacco leaves. 



We figure (268) the moth 

 of Ennonios subsignaria, the 

 larva of which is so injurious to 

 shade trees in New York City. 

 It is a widely diffused species, 

 occurring probably through- 

 out the Northern States. We 

 have taken the moth in 



Northern Maine. We have received from Mr. W. V. Andrews 



the supposed larvse of this, 



moth. They are "loopers,' 



that is, they walk with a| 



looping gait, as if measur- 

 ing off the ground they walk I 



over, whence the name 



"Geometers," more usually j 



applied to them. They are 



rather stout, brown, and I 



roughened like a twig of the 



tree they inhabit, with an 



unusually large rust-red head, 268. Ennomos subsignaria. 



and red prop-legs, while the tip of the body is also red. They 



are a little over an inch long. 



The Insects of September. 



Few new insects make their first appearance for the season 

 during this month. Most of the species which al)onnd in tlie 

 early part of the month are the August forms, which live until 

 they are killed by the frosts late in the month. From tins cause 

 there is towards the end of the month a very sensible diminu- 

 tion of the number of insects. 



The early frosts wai'n these delicate creatures of approaching 



