INSECTA. 107 



pointed proboscis. Manner of life of this species is the 

 same as that of the Calandra, but they are neither so nu- 

 merous nor injurious. 



2. INSECTS THAT FEED ON LEAVES, OR LEAF-EATERS. 



The head is blunt ; the body oval ; the feelers straight 

 and bristle-like ; legs composed of four or five joints, 

 and, in many, are adapted for leaping. They live on the 

 buds and leaves of plants. 



The Ground Fleas (haltica oleracea) are a line and a 

 half long, of a brilliant blue-green, with black feelers. 

 They are very hurtful to many garden-plants, especially 

 those of the cress kind. The method of protecting the 

 plants from their ravages is by placing limed twigs 

 across the beds, and shaking the plants, the insects 

 spring upon them, and are caught. There are several 

 relative species. 



The Poplar Bug (chrysomela populi). Four lines 

 long, head and corselet dark blue, elytra red, with black 

 borders ; found on the leaves of the black and silver 

 poplar, willow, etc., on the leaves of which they feed 

 voraciously. 



3. WOOD BEETLES, 



Have rather long, cylindrical bodies, which differ much 

 in size. Both insect and larvae live in dry and growing 

 wood, which they injure greatly by eating galleries 

 through it. 



The Pine Scarabeus (bostrichus thypographus), plate 

 22, fig. 6. More than two lines in length, of various 

 shades of color, from light brown to black ; the corselet 



