116 



Latreille, and most probably of Fabricius : but we have 

 placed a note of interrogation to the synonym of the last 

 of these authors, because he describes the colour of the 

 elytra by the term fusca, which will not accord well with 

 our specimen. Yet his description in every other respect 

 agrees with it; mentioning the serrated antennae, the 

 dilated margin of the thorax, and the metallic hues that 

 in certain lights glitter upon it : on this account we are 

 pretty certain that ours can be nothing more than a variety 

 of his insect. 



Body black. Head, excluding the neck, cordate, con- 

 siderably narrower than the thorax, shining, without 

 punctures, one or two excepted on each side between the 

 eyes and the neck. Antennae recurved, a little longer than 

 the head, hairy, black; with the last joint piceous: their 

 three first joints are nearly obconical ; the seven following 

 ones on their lower side jut out into an angle, forming so 

 many serratures; the last is nearly ovate and acute. The 

 thorax is naked, shining and black ; but behind and on 

 the sides, in certain lights, it reflects a greenish metallic 

 hue; it is rounded, and widest behind, somewhat com- 

 pressed before, and truncate with a sinus for the reception 

 of the neck ; its disk is very convex, but its sides are de- 

 pressed, dilated and flat; its surface is smooth, with about 

 twenty-six impressed punctures, viz. eight disposed in two 

 triangles on the disk, the acute angle of which is distin- 

 guished by two approximate ones, and eighteen in the 

 margin, thus disposed, beginning at the anterior angle, 

 2. 5. 2. 2. 5. 2. The anterior tarsi are dilated, and fulvous 

 underneath. The elytra are rather longer than the thorax, 

 but not quite so wide, opaque, black, except the angle at 

 the shoulders, which is distinguished by a ferruginous dot 

 that is almost concealed by the thorax. The abdomen is 

 shining and hairy. The anus is terminated by a rectilinear 

 forceps, and two linear and very hairy appendages : these 

 are all probably sexual distinctions. 



