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X. Supplemental Descriptions of Species of African, Asiatic 

 and Australian Cetoniidse. By J. O. Westwood, F.L.S., 



(fee. 



[Read 5th June, 1854.] 



Since the publication of ray memoirs on the African and Indian 

 Goliathideous Cetoniidcem the " Arcana Entomologica," I have lost 

 no opportunity of obtaining additional knowledge, not only of new 

 species, but also of the sexual distinctions of such of the previously 

 known species as had been known only by one or other (generally 

 the male) sex. By this means I have been enabled to render our 

 acquaintance with several interesting species complete, whilst the 

 arrival of several totally new species affords me an opportunity of 

 bringing the whole into a separate communication, which will, I 

 trust, be regarded with interest as a supplement, not only to the 

 memoirs above alluded to, but also to the several papers pub- 

 lished upon the species of this family by Messrs. W. W. Saunders, 

 Schaum and myself in the Transactions of our Society. 



GoUathus (Dicronorhinn) micans. (PI. VI. fig. 1.) 

 Under the name of Cetonia micans a fine species of Goliath 

 beetle, from Calabar, on the west coast of Africa, about 5° or 6° 

 north latitude, was described by Drury in his Illustrations, vol. ii. 

 pi. 32, fig. 3. Specimens of an African insect, captured in con- 

 siderable numbers at the French settlement at Senegal, were re- 

 garded by Messrs. Gory and Percheron, Mon. Cet. pi. 25, fig. 2, 

 as identical with the species of Drury. Relying, however, upon 

 the precise description of Drury, I did not venture to regard the 

 two insects as distinct — Arc. Ent. i. p. 172 — retaining for Drury 's 

 insect the name of C. micans, and giving to the Senegal one the 

 name of C. cavifrons. 



A specimen of the true C. micans, in the collection of Mr. Melly, 

 has enabled me to draw up a specific diagnosis of both insects, 

 (Proc. Ent, Soc. 5 Nov. 1849, p. Ixxxvii), and I now add figures of 

 the head and thorax in different points of view, with the following 

 distinctive description of C. micans. 



Head wide, subquadrate, anterior margin produced in the middle 

 in front into a broad erect horn, dilated at its sides, which extend 

 outwardly nearly to the width of the anterior angles of the head. 

 When seen from the front the upper edge of the horn is rather 

 deeply marginate in the middle. Along the middle of the iiead 

 runs a raised ridge or carina, the hinder half of which is margined 



