It is highly probable that all, or nearly all, of 

 the North American species, are endowed with 

 the same properties that have so long rendered 

 the L. vesicatoria almost indispensable to the 

 practice of medicine ; and it is certain that a suf- 

 ficient quantity may be collected in the United 

 States to supply the demand of the shops, to the 

 complete exclusion of the foreign insect. 



LYTTA NUTTALLI. 



SPECIFIC CHARACTER. 



Bright green, varied with golden ; elytra 

 golden purple; feet black, thighs blue, trochan- 

 ters armed with a spine. 



SYNONYM. 



L. NuTTALLi. Nobis. Jour. Acad. Nat. Sci- 

 ences, vol. iii. p. 300. 



DESCRIPTION. 



Body glabrous : head deep greenish, varied 



PLATE III. 



