76 SEKK1C0RNIA. 



the subcosta is comparatively smooth, the sides are closely and more strongly punctured ; 

 each elytron has an elongate inconspicuous grey pubescent spot just before the middle, 

 another behind the middle, and a third near the apex, and there is also a very small spot 

 at the side behind the middle. The prosternal process is broad and flat, shining, with 

 numerous rather strong punctures. The metasternum has a deeply-impressed median 

 line. The abdomen is dark steel-blue, with the basal segment aeneous in the middle ; 

 the punctuation is delicate and not very close. 



37. Agrilus manatus. (Tab. V. figg. 14, 14 a-c.) 



Supra aeneo-viridis, subtus aeneus, nitidus, capite, vertice thoracisque disco olivaceis ; capite creberrime sat 

 fortiter punctate) ; thorace crebre evidenter punctato, disco sat profunde bifoveato ; elytris creberrime 

 punctatis (costa fere lsevi), singulo apice denticulate et dente acuto armato. 



Long. 65 lin. 



Hab. Mexico (Brit. Mm.). 



The head is brassy-green in front, closely and rather strongly punctured, with a not 

 very well-defined impression above the clypeus. The antennae are very long (fig. 14 b). 

 The thorax has the punctuation rather strong, close, often subconfluent transversely ; 

 the impressions on the disc are rather deep, transversely ovate ; the posterior ridge is 

 well marked, turned down to meet the margin rather before the middle (fig. 14 a). 

 The elytra have the subcosta well marked, nearly smooth, and its limits well denned by 

 the punctuation of the rest of the surface ; the punctuation in the sutural area is close 

 and fine, at the sides it is a little less close ; the apex of each elytron is somewhat 

 expanded, finely denticulate, with a larger central tooth which is coppery. The pro- 

 sternal process is moderately strongly and somewhat closely punctured. The meta- 

 sternum is very distinctly, moderately strongly, and rather thickly punctured, but the 

 punctures are well separated from each other. The metathoracic episterna are thickly 

 and very finely punctured, shining on the inner side, clothed with yellow pubescence on 

 the outer side. The abdomen is finely but distinctly punctured, the punctures mode- 

 rately close together ; each segment has at the side a not very distinct triangular spot 

 of fine pale golden-grey pubescence ; the lateral carina of the basal segment alters its 

 direction posteriorly (fig. 14 c). 



38. Agrilus vittulus. (Tab. IV. figg. 18, 18 a, b.) 



Brunneo-seneus : thoracis disco foveis duabus profundis notato, sulco laterali flavo-piloso : elytris maculis sex 



vittaque suturali flavis, apice purpureo. 

 Long. 4-4f lin. 



Ilab. Mexico, Cordova, Cerro de Plumas (H'dge). 



The punctuation of this insect does not present anything unusual : it is moderately 

 strong throughout, more dense and fine on the sutural area of the elytra than at their 

 sides. The head is much flattened in front, with a small fovea on the vertex and a very 

 small one on each side, and a shallow one above the clypeus ; the male has the face 



