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XIV. On CeratoiTlilna quadrlmaciilata {Fabr.), and de- 

 scriptions of two new allied species. By H. W. 

 Bates, F.L.S. 



[Read 2nd May, 1877.] 



Mr. F. J. Horniman has had the good fortune recently 

 to receive from his correspondents at the Camaroons, on 

 the west coast of Africa, a series of both sexes of that 

 beautiful and little-known Goliathide the Ceratorrhina 

 Cjuadrimaculata of Fabricius and Olivier. The male 

 appears never to have been described, and I avail myself 

 of the opportunity afforded by Mr. Horniman to supply 

 the desideratum; adding the descriptions of two allied 

 species from his collection. 



1. Ceratorrhina qiiadrimaculata, Fabr. Spec. Ins. I. 5Q; 

 Oliv. Entom. No. 6, p. 30, pi. 8, f 73. 



$. Oblongo-quadrata, paulo convexa, itete viridis, 

 capite rufo, elytris fulvescentibus utrinque nigro-bimacu- 

 latis; femoribus supra rufis, tarsis piceo-nigris ; thorace 

 sparsim punctato, elytris tenuissime punctulatis. 



Caput quadratum, supra concavum, clypei angulis acutis, 

 margine antico cornu brevi obtriangulari, vix furcato, 

 armato; occipite dentibus duobus, distantibus, porrectis. 

 Tibiae anticse intvis vix tuberculatae. 



Long. 16 — 18 lin. 



Both sexes may readily be distinguished from C. aurata, 

 which in general form and colour the species much re- 

 sembles, by the red colour of its head and its black tarsi. 

 The male is fiu'ther distinguished from the same sex in 

 C. aurata by the much greater length and the different 

 armature of the head. The anterior lateral angles, and 

 the marginal horn of the clypeus, are nearly the same in 

 both species; the horn, of course, varying according to the 

 grade of development of the individual, in highly de- 

 veloped examples presenting five obtuse teeth on its upper 

 ex])anded edge which is rudimentarily furcate. But the 

 occipital horns are highly peculiar, being in the form of 

 stout, acute spines, sub-horizontally porrected, but some- 



TRANS. ENT. SOC. 1877. — PART III. (oeT.) P 



