THE AMERICAN APICULTURIST. 



155 



how many certificates on railroads 

 to ask for, will every one in this 

 or other States who expect to come 

 drop me a card at once to that ef- 

 fect? 



A. J. Cook, President. 



EXCHANGES. 



A NEW Insect Pest on the Bass- 

 wood, BY Prof. A. J. Cook. — A 

 few days since my little bo}' came 

 to me and said, " O papa ! There 

 is a new insect working on the 



basswood. It is a plant louse and 

 a regular Jumbo !" 



Whatever strikes at the bass- 

 wood aims a blow at apiculture 

 and so is the enemy of the bee- 

 keeper. It surely will be interest- 

 ing to know this new enemy, that 

 we may strike back whenever it 

 attacks. Two years ago I saw a 

 basswood, the branches of which 

 were dying from an attack by this 

 same insect. I procured specimens, 

 applied a remedy and had the satis- 

 faction of seeing the enemy wholly 

 vanquished. Last year I sought 

 far and wide, but could tind no 

 trace of this pest. This year I 



have received it from Wisconsin 

 with the report that it is doing 

 serious damage to the American 

 lindens. 



NATURAL HISTORY. 



The word Jumbo applies well to 

 these lice. They are very large 

 for plant lice. The winged ovovip- 

 arous forms (fig. 1) are, contrary 

 to what is usuall}^ true, even more 



numerous than are the apterous 

 ones (fig. 2). Those with wings 

 are about one centimetre (7-16 of 

 an inch) long to the tip of the 

 wings. The body is about five 

 millimetres (7-32 of an inch) long. 

 The antennae (fig. 3) are nearly as 

 long as the body, and the legs 

 nearly twice as long. The wings 

 expand fully sixteen millimetres, 

 or nearly three-fourths of an inch. 

 The head, antennae, eyes, thorax, 

 wings and certain spots on the ab- 

 domen are black. The remainder 

 of the body is covered with a 

 whitish bloom. The base of the 

 wings and the femora are yellowish- 

 brown. The other portions of the 

 legs are black. On the back are 

 four rows of black spots. The two 



Fig. 3. 



more central rows show eight spots 

 each. These spots are subrectan^- 

 gular, and show a tendency to run 

 together. The lateral vows contain 

 five spots each. The posterior 

 spot is large and is reall}' an abor*- 

 tive nectar tube. The spiracles 

 are also black. The antennae are 

 seven-jointed and quite hairy. The 

 beak is strong and prominent. 



