ORDER COLEOPTERA. 181 



of the palpi, the megacephala, and in other respects to the 

 tricondyla and therates.* 



The others have no tooth, in the middle of the emargi- 

 nation of the mentum. The labial palpi are contiguous at 

 their origin, with their first articulation obconical, or in the 

 form of a reversed pyramid, and dilated or prolonged inter- 

 nally at its extremity, in the manner of an angle or tooth. 

 The external maxillary ones do not pass much beyond the 

 labium. These species have been divided into three sub- 

 genera. 



Therates. Latr. Eurychile. Bonnelli. 



Similar in their general form to the circindelae proper, but 

 which are distinguished from them as well as from all the 

 analogous sub -genera, by their internal maxillary palpi, 

 very small and of an aciculary form. The tarsi are similar 

 in the two sexes, with their penultimate articulation in the 

 form of a heart, without emargination, and simply hollowed 

 above for the insertion of the last. ^ 



These insects are exclusively peculiar to the most eastern 

 islands of Asia, such as Java, the Sunda Isles, and those 

 which are to the north of New Holland. 



In the two following sub-genera, and in all which are 

 peculiar to the East Indies, and the most remote islands to 

 the east, the body is narrow and elongated, with the corslet 

 almost cylindrical, and of a knotted form. The third or 

 fourth articulation of the tarsi, is elongated internally in the 

 manner of a lobe. 



CoLLiuRis, Lat. Collyris, Fab. 

 They are winged ; the antennae are more bulky towards 



• See EntomologicB bras'liancB specimen of H. Klug. Species gen. des. 

 Coleop d'Eur, de M. Le Comte Dejean, torn. 1, p. 152, et Suiv. 



