260 
DARWINISM 
CHAP. 
One of the characters by which some beetles are protected 
is excessive hardness of the elytra and integuments. Several 
genera of weevils (Curculionidse) are thus saved from attack, 
and these are often mimicked by species of softer and more 
Fig. 27. 
a. Doliops sp. (Longicorn) mimics Pacliyrhynchus orbif®, (6) (a liard curculio). 
c. Doliops curculionoides mimics (d) l’achyrhynchus sp. 
e. Scepastus pachyrhyuclioides (a grasshopper) mimics (/) Apocyrtus sp. (a hard 
curculio). 
(). Doliops sp. mimics (h) Pacliyrhynchus sp. 
i. Phoraspis (grasshopper) mimics (k) a Coccinella. 
All the above are from the Philippines. The exact correspondence of the colours 
of the insects themselves renders the mimicry much more complete in nature than it 
appears in the above figures. 
eatable groups. In South America, the genus Heilipus is one 
of these hard groups, and both Mr. Bates and M. Roelofs, 
a Belgian entomologist, have noticed that species of other 
genera exactly mimic them. So, in the Philippines, there 
