ORDER COLEOPTERA. 313 



first two, are small, almost grained, or in a reversed cone. 

 The first two are much thicker. These species comprehend 

 the genus Tuachys. Of this number is B. Murnata, Lin. 

 Oliv. ibid. II. 14. Black underneath, of a coppery brown 

 above, with the middle of the front sunk in the corslet, 

 sinuated at its posterior edge, and some whitish stripes, un- 

 dulating, formed by hairs, and transverse on the cases. Com- 

 mon on the hazel tree, of which it gnaws the leaves. 



Aphanisticus, Lat. 



Have the antenna3 terminated abruptly in a club-form, 

 oblong, compressed, slightly serrated, formed by the last four 

 articulations. The last of the palpi is a little thicker, almost 

 ovaliform. The interval between the two eyes is excavated, 

 as well as in the trachis. Two or three species are known, 

 all very small, and of a linear form.* 



Sometimes the antennas are very much pectinated (on one 

 side only) in the males, but strongly serrated in the other 

 sex. The articulations of the tarsi are almost cylindrical and 

 entire. The palpi are terminated by an articulation much 

 thicker than the preceding, and almost globular. The jaws 

 are terminated by a single lobe. 



Melasis, Oliv. 



Their body is cylindrical, and the posterior angles of the 

 corslet are prolonged into a sharp tooth, characters which, as 

 well as those taken from the tarsi and the palpi, announce 

 that these insects form the passage from this tribe to the 

 following.-|- 



* Buprestis emarginata, F. Oliv. ibid. X. 116; Germ. Faun. Insect. Eur. 

 III. 9 ; ejusd. Buprestis lineola, ibid. 10. 



f Melasis Buprestoidcs, Oliv. II. 50, i. i. Melasis elateroides, Illig., 

 ditFering, according to him, from Elater Buprestoides, Lin. 



