beautiful, and many of them much esteemed for their rarity, 

 amongst which the following may be enumerated : 



I. Thorax with the sides simple. 



Chrysomela Adonidis Fab., Nob. 



geminata Paylc: quinquejugis Marsh. 



fulgida Tab. Si/st. Eleut. 



fastuosa Linn., Don. 6. 194. 



Viminalis imw., Panz. 78. 3: 10-punctata Marsh. 



rufipes Payk. : 1 0-notata Marsh., Don. 11.373.1.1. 



II. Thorax with the sides incrassated. 



Chrysomela incrassata Marsh. : Lamina Fab., Panz. 44. 5. 

 lepida Brit. Miis. 

 limbata Fab., Panz. 16. 8. 

 marginata Linn., Panz. 16. 11. 

 lurida Linn., Panz. 78. 1. 



Mr. Samouelle informs me, that the rare species figured was 

 presented with some others to the British Museum by Dr. 

 Leach, who received it from a gentleman in Lincolnshire, by 

 whom it was taken. 



The extraordinary monstrosity figured in the plate (5*) has 

 been introduced in consequence of its having been alluded to 

 in the valuable volumes of the Introduction to Entomology 

 lately published, where it is stated to be one of the most re- 

 markable instances of the kind that has fallen under the obser- 

 vation of the authors. The specimen of C. hcemoptei'a L. ex- 

 hibiting this singular conformation, I took amongst a multi- 

 tude of others many years since upon the Senecio Jacobaa ; and 

 from the symmetry of the insect not being affected, its pecu- 

 liarity of structure did not attract my attention until after it 

 was dead. The apex of the femur of one of the hinder legs is 

 lengthened obliquely, to the internal extremity of which the 

 supernumerary tibia is attached ; it appears to have been move- 

 able : the basal joint of the tarsus is remaining, and from its 

 having a cavity for the reception of the following joint, there 

 is no doubt but the remainder have been broken off by some 

 accident. It is not our intention to enlarge further upon the 

 subject; we only hope that a fact so curious (and rendered more 

 remarkable from insects being unlike other animals in their 

 organization, and undergoing 4 distinct transformations,) will 

 be interesting if not valuable to the physiologist and compara- 

 tive anatomist. 



Hypnum alopecurum (Fox-tail Feather-moss) is figured in 

 the plate. 



