MIMICRY 239 



Demonax, grey, black-banded beetles, were amongst 

 the commonest of all Longicorns. Their abundance, 

 combined with the fact that they are widely mimicked, 

 forces us to the conclusion that these two genera, at any 

 rate, are protected, but we shall not be able to state 

 with certainty whether all the genera of the sub-family 

 are protected until we have larger collections to study 

 and more observations on record. These protected 

 Clytince exhibit three types of coloration : (i) yellow 

 with black bands or stripes ; (2) grey with black 

 bands ; (3) as (2), but with red thorax. The Clytince 

 of type (i) are mimicked by a Lamiine, Cylindrepomus 

 comis, by a Phytaeciine, Daphisia sp., and by a Lep- 

 turine, Leptura sp. A species of Leptura also mimics 

 a Demonax coloured according to type (3). All the 

 other mimics, including six species belonging to four 

 sub-families, resemble species of Demonax and Xylo- 

 trechus, coloured according to type (2). The tables 

 appended give in graphic form the facts detailed 

 above ; it must be remembered that they have no 

 pretensions to being exhaustive, and further collecting 

 over a wider area would undoubtedly bring to light 

 numbers of new examples of mimicry. It is earnestly 

 to be desired that some naturalists would pay close 

 attention to this question of mimicry amongst Longi- 

 corns in other tropical regions of the world; it is 

 quite certain that very interesting results would accrue 

 from such a study, and the very wide distribution of 

 the phenomenon of mimicry throughout the insect 

 kingdom would be more firmly established. 



I will close this chapter with a few remarks on the 

 Lycoid type of coloration. Miillerian mimicry is dis- 

 played in its most favourable aspect by large groups of 



