PLANT LICE. 153. 
hills of loose earth near the plants, due to the presence of small 
brown ants, who take good care of their “cattle,” even carrying 
them away when the plants are taken up. 
Prof. Garman recommends the use of ground-up tobacco 
stems, to be scattered liberally along the furrows in which the 
beans are planted. Since the tobacco is at the same time a good 
fertilizer, its use makes the plants more vigorous, so that they 
can withstand their underground enemies much better than 
plants not so well fed. 
Fic. 140—Tychea phascoli Passeiini, A, antenna; B, tarsus, greatly enlarged. 
After Garman. 
SUB-FAMILY CHERMESINA. 
These lice have short, five-jointed or three-jointed feelers; 
their beak is short, never very long, and is even wanting in the 
perfect sexes. The eyes are nearly always large and prominent; 
the fore-wings have only two discoidal veins; the hind-wings 
have a single oblique vein, sometimes very obscure or even absent. 
The legs are short, the tarsi have two claws, and the honey-tubes 
are wanting. 
