118 



in medio tuberculo acuto armatus, disco ante medium 

 sub excavato, nitidus, vittis 7 albido-ochraccis, media 

 abbreviata. 



Scutelluni Iseve lateribus albidis. 



Elytra nigro-picea subrugosa, irregulariter sub- 

 punctata, lateribus apiceque lato iridescenti-marga- 

 ritaceis, tuberculo in singulo fere apicali nigro. 



Corpus infra et pedes nigro-picea. 



TibicB anticae extus 3-dentat8e, 4 posticse in medio 

 unidentatae, externe fulvo plosse. 



I have given the name of Goliathus Princeps 

 to the above species, as it differs in many points 

 fromG. Regius figured by Professor Klug in Erman's 

 Voyage. In the present state of our knowledge it 

 is difficult to decide with certainty whether the above 

 described insect be the female of any of the already 

 described, or of a still unknown, species. It is better 

 therefore to give it a provisional name, although the 

 insect is evidently a female, than let it remain unde- 

 scribed. At a future time it can be changed when 

 more accurate information is obtained. It is almost 

 impossible to convey, in Latin, an idea of the iride- 

 scent colour of some of these Goliath Beetles, the ap- 

 pearance of mother-of-pearl exactly corresponds with 

 the pale portion of the elytra of the insect. above 

 described. The nature and causes of the colourinff 



