APPENDIX. 



The following are the species of ants which I have observed 

 on the Riviera, and principally at Mentone ; the actual locality 

 where my notes were taken being given in every case. 



Family Formicidce.* 



Tribe Formicinece. — Petiole (or stalk which unites the 

 thorax and the abdomen) of one joint, and furnished with a 

 single vertical scale, abdomen not contracted. 



(1) Formica fusca, Linn. — A rather large ant (.3 J to 4| 

 lines long), of a blackish ash colour, with a satiny sheen on 

 the upper half of the abdomen. Smells of formic acid when 

 crushed. Lives upon sweet secretions and animal matter, 

 and occasionally carries a very few seeds into its nest, which 

 is made in the ground. (Mentone.) 



(2) F. emarginata, Latr. — Of medium size (2^ lines), 

 brownish, with yellow thorax. Has a strong smell of honey 

 when crushed. Lives principally upon sweet secretions, but 

 occasionally carries a very few seeds also. Nest in the ground. 

 (Mentone.) 



(3) F. (Camponotus) cruentata, Lat. — Large (5 to 6 lines), 

 dusky brown, with orange red on legs and abdomen. Strong 

 smell of formic acid. Lives on sweet secretions and animal 



* Ants have been divided iuto three tribes, the two first of which, 

 Formicinece and Ponerinece, are distinguished by the latter having a contrac- 

 tion in the abdomen not found in the former, and both are separated from 

 the third tribe, Myrmicinece by having but a single scale on the petiole, 

 while in Mi/rmicinece there are always two nodes or protuberances on the 

 petiole. It is important to remember the difference between the first and 

 the last named tribes, as we shall find that all the true harvesters belong 

 to Mijrmicinece. I have not seen any of the representatives of the second 

 tribe in the south. 



