288 NATURAL ARRANGEjfENT OF INSECTS. 



siderably from the typical structure ; the first joint is 

 nearly as long as all the others, and the third only is 

 lobed, or heart-shaped * : nor is there any " knob or 

 swelling like an articulation,' at the origin of the last," 

 or claw-joint; hence we infer that these insects are 

 much more cursorial than any of their congeners, since 

 their tarsi have a close resemblance to those of the 

 Lepturidce. — 2. The LamiincB, where the typical cha- 

 racters of the family are most conspicuous, appear to 

 follow the last. Their body is nairower, more cylin- 

 drical, and does not much exceed the breadth of the 

 head and thorax ; the front of the former is so broad 

 and flattened, that it is almost square ; and the latter is 

 almost always armed with spines or tubercles. As they 

 walk very slowly, but cling tenaciously, their feet are 

 very different from the last : in the great majority, the 

 two first joints are very short and heart->haped, and 

 the third, as usual, deeply lobed. In some, approach- 

 ing to Acrocinus 111., the anterior tarsi are greatly 

 dilated in one sex, and conspicuously fringed with 

 hairs : few are ornamented with any bright colours, 

 and none that we know of are metallic. — 3. The 

 CerambycincB have a general resemblance to the La- 

 miince, in their cylindrical body being nearly of equal 

 breadth throughout ; but their thorax and head are 

 somewhat narrower, their legs more slender, and the 

 first tarsal joint rather longer than the next : the ap- 

 pearance of these insects, also, is quite different; their 

 elytra are smooth or glossy, and often ornamented with 

 a beautiful admixture of colours. One (^Lophonocerus), 

 from Brazil, covered with bright yellow spots upon a black 

 velvet-like ground, is one of the most elegant capri- 

 cornsof this family. — As a type of the 4th division, we 

 place the genus Lissonotun, which seems to intervene 



* This is one of the innumerable instances of abuse of primary charac* 

 ters drawn from these organs. Authors begin their definition of this fa. 

 inily by stating that the second and third tarsal joints are heart-shaped, and 

 the last with a knob at the base; whereas all the three are diversified in 

 almost every leading group. 



