108 SEBBICOBNIA. 



the lateral margins and the extreme base are violet; the posterior ridge is absent. The 

 elytra are moderately closely punctured, but the punctuation is not clearly denned. 

 The prosternal chin-piece is gently arcuate. There is a pure white pubescent spot at 

 the side of the metasternum ; the posterior coxae and the outer half of the metathoracic 

 episterna are clothed with white ; and there is a distinct white spot on the basal 

 segment of the abdomen above, a rather large one at the side of the second segment, 

 and smaller ones on the third and fourth segments. The lateral carina of the basal 

 segment is sinuous about the middle (fig. 17 a). 



109. Agrilus spisSUS. (Tab. VI. figg. 18, 18 a.) 



Kufo-cupreus ; capite crebre punctulato, antice maculis duabus flavis ornato, vertice virescente ; thorace erebre 

 ruguloso, disco bi-impresso, macula mediana et laterali pallide flavis ; elytris griseo-nigris, opacis, pube 

 brevissima flavo-grisea vestitis, confertim subtiliter granulatis; abdominis marginibus supra aureo- 

 pubescentibus. 



Long. 3|-4 lin. 



Hah. Mexico, Jalapa (Hoge); Guatemala, Quiche Mts. 7000 to 9000 feet, San 

 Geronimo (Champion). 



The head is shining in front, closely and finely punctured ; there is a well-marked 

 impression above the clypeus, and a larger wider one at the upper part of the face, 

 with a longitudinal impressed median line. The example from Guatemala has the 

 front of the head bright golden-green : no doubt this is a male character. The thorax 

 has two slight impressions on the disc, the anterior one rather larger than the posterior, 

 both sometimes concealed by the yellow pubescence ; the posterior ridge is some- 

 what curved, and is not well marked. The elytra are rather flat, densely and finely 

 granular ; the subcosta is faintly indicated ; in one example the fine pubescence shows 

 a tendency to form a narrow stripe on the inside of the subcosta. The prosternal 

 chin-piece is distinctly emarginate. The prosternum is convex, finely punctured, the 

 punctures slightly separated from each other ; the intercoxal process is slightly flattened 

 at the sides, obtusely angular at the apex (fig. 18$). The episterna are pubescent on 

 the outer half, shining, sparingly punctured, and with transverse impressed lines on the 

 inner half. The abdomen is finely punctured, slightly pubescent ; the lateral carina of 

 the basal segment is scarcely bent at the middle, rectilinear posteriorly. 



110. Agrilus planipennis. 



Niger; capite thoraceque seneis, hoc basi rufo-cuprea; elytris confertim granulatis, post medium sat ampliatis. 

 Long. 3^ lin. 



Hah. Mexico, Juquila, Tuxtla (Salle). 



This species is very similar in appearance to A. gracilitarsis, but is different in form, 

 and is black beneath. The head is narrow ; deeply longitudinally impressed, the 

 impression extending to the top of the head and visible from above. The thorax 



