G20 APPENDIX. 



(6) Meloe (p. 526, note). Since the note was written relating to the largely- 

 developed cultriform process in the hinder legs of Meloe (wliich, whilst appearing 

 to be but a modification of the tibial spui*, is in reality articulated on to the foot), 

 my attention has been directed by Adam "VMiite, Esq., of the British Museum, to 

 an observation by Mr. MacLeay, in the 15th volume of the Transactions of the 

 Linncean Societi/ (a.d. 1827), which, singularly enough, almost coincides vdih the 

 suggestion which I ventm-ed to tlu-ow out. As it is a subject not altogether devoid 

 of interest, I subjoin his remarks verbatim. " Hence," says he, " in Hetero- 

 merous insects generally, we may perhaps suppose that it is the foiirth joint of the 

 tarsus <which vanishes. I say generally, because there may be many exceptions to 

 this rule ; — perhaps, for instance, Meloii and the insects allied to it. These are true 

 Ileteromera ; but on looking at theu- posterior feet we find an obconical process, 

 which seems to represent the lost articulation, and occasions one almost to fancy, 

 although not perhaps very philosophically, that it is the second joint of the tarsus 

 which articulates with the tibia." 



COERIGENDA. 



p. G3 — lor Trechusjimicolus, read Treehus Jtmicola. 

 p. 284 —for (1764), read (1762). 



