3120 



THE JOINTED ANIMALS 



i. Rhagium indagator, with larva and pupa 

 2. Rhagium bifasciatum. 



(Natural size. ) 



in Europe ( Bromius 

 vitis) is only too well 

 known on account of the 

 damage it inflicts on the 

 leaves of the vine. With 

 the Chrysomelincz we 

 come to the most typical 

 forms belonging to the 

 family. These beetles 

 are distinguished b y 

 their oval and convex 

 shapes, having in many 

 cases a great resemblance 

 to ladybirds (Cocdnel- 

 lidce), while their colors 

 are nearly always 

 brightly metallic or 

 otherwise conspicuous. 

 Some of the species are 

 very gregarious in their 

 habits. Lina tremulce 

 is often found in large 



of the plants, and change to pupae 

 which are inclosed in oval cocoons. 

 In the beetle of the section Camp- 

 tosomata, the body is short, the 

 head vertical and deeply sunk in 

 the prothorax, and the abdomen 

 slightly curved, with its middle 

 segments contracted; the antennas 

 are short and serrate or pectinate 

 in the first subfamily, while in the 

 second they are rather long and 

 filiform. The larae move about 

 surrounded by a sack-like case, 

 from which the head and anterior 

 part of the body are free. They 

 retract themselves completely with- 

 in the case and close up the open- 

 ing when about to undergo their 

 metamorphosis. The Cyclica com- 

 prise four subfamilies, of which the 

 first, the Eumolpince, is almost en- 

 tirely composed of exotic species, 

 though one of the few species found 



Necydahs major. 

 (Natural size.) 



