THE DISTRIBUTION OF INSECTS IN NEW HAMPSHIRE. 365 



by the friction of the inner edges of the elytra only, not by the whole 

 surface. 



4. Ntmobius fasciatus Scudd. This cricket may prove to be only a 

 long-winged form of the preceding, as it scarcely differs from it in anything 

 but the length of these organs. It is also found throughout New Hamp- 

 shire, even in the White Mountain region. It occurs as far south as 

 South Carolina, Louisiana, and Texas, and west at least to Missouri. I 

 have not noticed any difference between the chirp of this species and of 

 the preceding. 



5. CEcanthus nivens Serv. is probably found in the southern portions 

 of the state, although no record of its occurrence has fallen under my 

 notice. It is certainly found in the neighboring parts of Massachusetts. 

 This insect does great damage to young shoots of raspberry, blackberry, 

 and even of the grape-vine, by depositing its eggs within the stem ; these 

 are laid in a nearly perpendicular row, often a foot long, at short distances 

 apart, a single egg being introduced through each hole into the very 

 heart of the stem, weakening it to such a degree that it is apt to break 

 in a strong wind. A European species, thought by some to be identical 

 with this, has a slightly different habit, and is far less, if at all, injurious. 

 It makes its punctures much farther apart, and introduces two or three 

 eggs into each opening. 



The day-song of this insect is exceedingly shrill, and may be repre- 

 sented by the following figure, though the notes vary in rapidity. When 



Fig. 49. 



thrrr ------------------------ - - - 



-0-0-0-0-0-0-0-0-0-0-0-0 [ 



wwwwwv 



Note of CEcaiithus niveus by day. 



slowest they are about sixteen a second. The song is of varied length, 

 sometimes lasting but two or three seconds, sometimes continuing a 

 minute or two uninterruptedly ; it is a nearly uniform, equally sustained 

 trill, but the insect often commences its note at a different pitch from the 

 normal one, as if it required a little practice to attain it. When singing, 



