402 MIMICRY. 



lower and more compressed. In their migration from 

 one nest to the other, which are occasionally at some 

 distance apart, the ants are accompanied by the 

 Dinardas. On one occasion, when the ants were 

 flitting. Dr. Wasmann in twenty minutes captured 

 among them thirteen specimens of Dinarda ; while 

 under other circumstances he never saw one outside 

 the nest. 



Hetoerius ferrugineus, belonging to a totally dif- 

 ferent family of beetles, the Histeridte, and which 

 inhabits the nests of Polyergus rufescens^ Formica 

 sanguinea, F. 'pressilabris, F. fusca, F. rufibarbiSf 

 F. rufa^ F. exseda^ Lasius niger^ and Tapinoma 

 erraticurriy appears to agree in its habits with Dinarda, 

 and to devour dead and wounded ants, as also do the 

 Myrmedoniae. 



Dr. Wasmann confirms entirely my observations, 

 in opposition to the statements of Lespes, that while 

 ants are deadly enemies to those of other nests, even 

 of the same species, the domestic animals, on the 

 contrary, may be transferred from one nest to another 

 and are not attacked. 



He justly observes that, no doubt, many interest- 

 ing discoveries are in store for us as to the relations 

 between ants and their guests. The marvellous and 

 grotesque antennae of the Paussidse will doubtless, one 

 of these days, tell a wonderful story to some patient 

 and fortunate observer. 



Mimicry among Ants. 



Professor C. Emery has published in the *Bull. 

 della Soc. Ent. Italiana,' 1886, a short, but interesting 

 note on the habits of Camponotus lateralis. Of this 

 species there are two varieties : one black, like its 

 nearest allies ; the other red, with the abdomen and 

 part of the thorax black. They live in small colonies, 



