THE ENTOMOLOGIST. 



No. XVIII. 



APRIL, MDCCCXLII. 



Price 6d. 



Art. LXXIV. — Description of a new species of LamelUcorn Beetle, 

 brought from Valdivia hij C. Darwin, Esq. By G. R. Water- 

 house, Esq., Curator Zool. Soc. 



Oryctomorphvs(? J pictiis. Nigra, nitida ; capite punctatissimo, 

 punctis confluentibus : thorace punctato, punctis sparsis impressis : 

 elytris in'egulariter lineato-punctatis, ad basin maculis binis aurantiis, 

 fascia obliqua concolori ad medium posita, binisque aliis irregulari- 

 bus subapicalibus. (Corp. long. 94 lin. lat. 5 lin.) 



Habitat Valdivia. 



Head very thickly and finely punctured, the punctures confluent, 

 with a distinct tubercle between the eyes, behind which is a transverse 

 depression, which is impunctate. Clyiaeus rather broader than long, 

 with the lateral margins of the hinder half straight and parallel, but in 

 fi'ont converging, and thus forming an obtuse angle on each side, the 

 apex very narrow, recurved and slightly emarginated, the upper sur- 

 face concave. Lab rum minute, and nearly of a semicircular form. 

 Mandibles short, stout and pointed, and with the apex recurved ; at 

 the base on the inner side is a large rounded tooth, presenting a flat 

 masticating surface, having three or four elevated transverse ridges. 

 Maxillae veiy^ small, the blade scarcely projecting above the base of 

 the palpus, its apex is rounded and clothed with longish hairs. Max- 

 illary palpi of moderate length and thickness, three-jointed ; the mid- 

 dle joint short, being about equal in width and length ; the basal joint 

 nearly obconical and longer than the second ; the terminal joint the 

 longest, and of an elongated conical form, but with the apex trunca- 

 ted ; labial palpi small, with the two basal joints short and equal ; the 

 terminal joint about equal in length to the other two, nearly cylindri- 

 cal, but becoming gradually naiTOwer towards the apex, which is 

 rounded. Mentum in the form of an isosceles triangle, but with the 

 sides slightly dilated in the middle. Antennae with the basal joint 

 much incrassated at the apex, the following four are nearly cylindri- 

 cal, the two first are somewhat elongated and the other two are short, 

 the sixth and seventh joints are dilated and cup-shaped, the remain- 

 ing three form the club, which is very large, very broad, and longer 



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