ON THE CETONIID^ OF SOUTH AFRICA. 



43 



affinity of transultation. I conceive Macrominus to approach Cetoninus somewhere between 

 the gigantic Goliathi and the coelocephalous Ischnostoma. I shall now therefore place here 

 the following species brought home by Dr. Smith, and which is very curious, on account of its 

 mentum being something like that of a Cremastocheilus. 



Sp. 21. (Cetoninus) Ischnostoma concava, G.P. 



D'lplognaiJia concava, G. P. p. 121. tab. 17. fig- 4. 

 Note. This appears to be the insect alluded to by M. Latreille in the second edition of the Regne 

 Animal, as a Goliathus brought from the Cape by M. Verreaux, Diplognatha aTbopunctata of Gory, 

 which is also a Cape insect, is evidently to be placed in the same section. So also is the Getonia 

 geotrupina of Bilberg, which both Schonnherr and Latreille consider to be a Goliathus, (See Syn. Ins. 

 App. p. 46. 69.) Professor Klug has stated likewise his opinion that the Diplognatha alhopunctata of 

 Gory, and the Getonia geotrupina of Schonnherr come close to the gigantic Goliathi. They are, in 

 fact, only to be distinguished from them by their porrected clypeus, which, like that of Goliathus, has a 

 central horn with a smaller lateral tooth on each side. Here, however, this middle horn is trifid, and the 

 maxilla is of a different structure. 



77. The second section, Xiphoscelideje, has for its type an insect in my collection, which I 

 suspect to be from Swan River in Australia. It is remarkable for its small round thorax, long 

 arched posterior legs, incrassated femora, and for the apex of the posterior tibise being produced 

 into a strong curved spine. The mouth agrees nearly with that of the following section. 



78. The third section. Arcades, comes very close to the sub-genus Cetonia, so close indeed 

 as almost to make one suspect that it may form part of the Trichioid section of that sub- 

 genus ; nevertheless, the smallness of the mandibles and of the terminal lobe of the maxillae 

 induce me to place it here. It is a groupe peculiar to the Cape, and offers two sub-sections, 

 which completely agree in the organs of their mouth. 



Types. 



* * * * 



B.— Body convex. Thorax not horned. \ 2 Ischnostoma sanguinipes. 



* * * * 



C 4 Ischnostoma cornuta. 

 A. — Body depressed. Thorax subcornute in the male. < 



■> ^ ^5 * * * 



Both the above species have been brought from the Cape by Dr. Smith, and I shall there- 

 fore enumerate them. 



Sp. 22. (Cetoninus) Ischnostoma sanguinipes, G. P. 



Getonia sanguinipes, G. P. p. 254. tab. 48. fig. 4. 

 Note. This is an insect that is almost as much a Getonia as an Ischnostoma. I am not sure whether 

 Getonia sanguinipes and G. talpina of Klug, ought to be considered as distinct species, but I think 

 that they are not the same. 



Sp. 23. (Cetoninus) Ischnostoma cornuta, Fab. 



Getonia cornuta. Fab. Syst. Eleuth. vol. ii. p. 143. 

 ScarahcBUS Areas, Oliv. tab. 9. fig. 83. 

 Getonia cornuta, G. P. p. 252, tab. 48. fig. 2. 

 Note. MM. Gory and Percheron say of Ischnostoma cornuta as follows : " Cette espece quoique tres 

 anomale par la forme ne nous a paru susceptible de former un genre propre ; les parties de la bouche la 

 rapprochant tout a fait des vraies Cetoines." This is quite correct j the only difference between this 

 species and the true Getonice being the cornuted thorax, and the comparative minuteness of the terminal 

 lobe of the maxillae. It is truly osculant, between Ischnostoma and Getonia, and comes close to the 



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