AGKILUS. 67 



rounded and denticulate, the inner angle with one or two teeth ; in the middle of the 

 apex of each elytron there is a strong acute tooth (fig. 3 a). One example has a 

 rather more distinct tooth at the outer angle. Each elytron has three small whitish 

 or yellowish spots : one not far from the base, a second at one third from the apex, 

 and the third nearer to the apex than to the second spot. The prosternal chin-piece is 

 scarcely emarginate. The prosternum is finely punctured in front, the intercoxal 

 process more strongly punctured, very lightly impressed in the middle, a little widened 

 at the apex, which is slightly angular (almost truncate), with the central process at a 

 lower level. The episterna, the posterior angle of the metasternum, and the outer 

 part of the posterior coxse are clothed with golden pubescence. The abdomen has a 

 moderately large spot on the upper margin of the basal segment, an elongate spot on 

 the upper margin of the second segment, and a larger spot at the side of the same 

 segment, golden-yellow ; the lateral carina of the basal segment is strongly angulated 

 behind the middle (fig. 3 b). 



16. Agrilus laetus. (Tab. V. figg. 5, 5 a.) 



Augustus, nitidus ; capite olivaceo-aeneo, transversim strigoso, autice longitudinaliter canalieulato : thorace 

 olivaceo-seneo, antice bene convexo, ad basin transversim impresso, tenuiter undatim striolato, disco longi- 

 tudinaliter impresso ; elytris sat crebre punctatis, maculis octo aureo-flavis ornatis, ad apicem emarginatis, 

 denticulatis. 



Long, o lin. 



Hab. Mexico, Orizaba (Salle). 



The head is rather unusually rough in front ; the longitudinal impression is well 

 marked but not abrupt, parallel. The thorax has its anterior margin arched forwards 

 in the middle; the oblique fine striolse are not very close together, and are marked 

 at intervals with very fine punctures; the discoidal impression extends nearly the 

 whole length of the thorax and is narrowed at the base ; the posterior ridge is sharp, 

 well-defined, scarcely curved, and does not reach the margin. The elytra have the 

 subcosta not very well marked, except at the middle ; the sutural area is closely and 

 rather coarsely punctured, the rest of the surface similarly punctured, but the punc- 

 tures are not quite so close together; each elytron has a yellow spot in the basal 

 impression, another before the middle, a third at the middle, and an oblique streak 

 at some distance from the apex ; the apex is emarginate, with two or three very small 

 teeth at the sutural angle and several very small ones on the outer apical margin. The 

 prosternal process is rugose, slightly pubescent. The metasternum is very unequally 

 punctured, shining; with a yellow spot at the posterior angle. The metathoracic 

 episterna are shining, with some irregular punctures. The abdomen is somewhat 

 evenly punctured all over, the punctures distinct and moderately separated from each 

 other ; there is a yellow spot at the side of the second segment ; the lateral carina of 

 the basal segment is deeply angularly emarginate behind the middle (fig. 5 a). 



K2 



