MIMICRY 241 



in Africa, Australia, and South America, and they are 

 so numerous that a collection of insects exhibiting 

 Lycoid colouring, if brought together from all parts of 

 the world, would occupy many cabinets. When in 

 such a group the mimicry between any single member 

 and one of the central dominant species is very close, 

 I am inclined to suppose that the mimicry is Batesian 

 rather than Miillerian ; a very distasteful insect can 

 gain much by acquiring a generalized resemblance to 

 the central dominant species, but it probably has many 

 other independent advantages, and may even exhibit 

 a subsidiary warning coloration of its own. But the 

 palatable Batesian mimic has no advantages outside 

 its mimicry, and therefore the resemblance between 

 it and its model, to be effective, must be close and 

 detailed. 



The Lycidce of Borneo are mimicked by the follow- 

 ing insects (species in italics Batesian) : 



COLEOPTERA : 



Longicornia 

 Lamiida 



Saperdince 



3 species of Xyaste 

 Cerambycida 



Euryphagina 



Eurycephalus lundi 

 LepturincB 



Ephies dilaticornis 

 PyrestincR 



2 species of Pyrestes 



4 of Erythrus 

 EucnemidcB i species Gen. f 

 Rhipidocerida i of Ennomates 

 Elateridce 2 of Agonischius 

 Clerida i of Tenerus 

 Hispidce 2 of Gonophora 



17 



