Osmoderma and some new Species of Cetoniadce. 217 



I have given the name of holoserica, signifying velvety, to this 

 species, as it expresses well the character of the insect, holosericea 

 is quite another word. 



The clypeus is quadrate and punctate, with the margins reflexed 

 and slightly produced at the anterior angles. The thorax is hex- 

 agonal and very convex, the surface resembling velvet, of a black 

 colour, and punctured. Scutellum rather large. Elytra dull black, 

 with elevated ridges, and striated, the interstices punctate. Body 

 beneath shining black, the breast and legs clothed with tawny 

 hairs. 



The above fine species was brought to England by Mr. Strachan. 



Sp. 6. Diplognatha rama^ Hope's MSS. 



Similis Cet. hcbrcece, Oliv., at differt. Rufescens, thorace elytris 

 purpureo-variegatis, clypeo rotundato. Corpus infra nigrum 

 et nitidum, sterno rotundato, et rubro. Pectus utrinque 

 macula lata rubrd insignitum ; externis segmentis abdominis 

 femoribusqne posticis rubro-maculatis, lateribus quasi vermi- 

 bus erosis. 



Long, lin, 8^, lat. lin. 4;\. 



Habitat in Japonia. In Mus. Dom. Hope. 



For the present I range this species under Diplognatha, to which 

 genus it is certainly nearly allied, although I believe no Diplog- 

 natha has yet ever been described from the East Indies ; I think 

 it right therefore to state the cause of my doubt, and add some 

 other characters. The head and clypeus are quadrate and punc- 

 tate, with the anterior margin rounded and reflexed, and not 

 sinuated as in Cet. hchrcea. The thorax is hexagonal, with the 

 corners rounded. The surface is sparingly punctate at the sides. 

 The elytra are broader than the thorax, and but little attenuated. 

 The entire surface of the insect is of a testaceous red, thickly 

 variegated with bluish black markings. The apex of the sternum 

 is dull red. The sides of the breast, and tlie apex of the inter- 

 mediate and posterior femora, together with the sides of the 

 abdomen, are spotted with the same colour. 



Sp. 7. Diplognatha pectoraUs, Hope's MSS. 



Corpus supra fusco-rubrum ; clypeo 2-dentato, pectore infra 

 flavo maculato, segmentis abdominis utrinque flavo-notatis, 

 pedibusque piceis. 



Long. lin. 7|, lat. lin. 4. 



Habitat in Sierra Leond. 



