230 ^atueal nisxonT or 



and afterwards dried, either by exposure to the sun, 

 or by being placed on hurdles covered with cloth or 

 paper in a well-ventilated apartment. The blister- 

 ing property has been ascertained to reside in a pe- 

 culiar principle, on which chemists have bestowed 

 the name of Cantharadine. 



CANTHAIilS NUTTALLI. 

 PLATE XIX. Fig. 4. 



Lytta Nuttalli, Say's American Entomology. 



Head and thorax deep green tinted with golden 

 yellow, the latter with unequal scattered punctures, 

 a longitudinal line in the middle, and another across 

 the base. The elytra are deep red or purple with 

 a golden gloss, the surface rough ; having two slight- 

 ly elevated lines along the disk of each, and another 

 near the margin. The under parts of the body are 

 bright green, the legs, antennae, and palpi nearly 

 black. 



" This noble species," says the American Ento- 

 mologist, to whom we have been indebted for the 

 accompanying figure, " which far surpasses the far- 

 famed Vesicatoria, has, I understand, been labelled 

 in a British cabinet with the name I have here 

 adopted, in honour of Mr Thomas Nuttall, who dis- 

 covered it. It seems to be limited to the western 

 region. In company with Major Long, I observed 



