AGEILUS. 101 



yellowish-grey pubescence. The division between the true first and second segments of 

 the abdomen is marked by a strong sinuosity in the lateral carina (with a whitish 

 pubescent spot above), and by an impression at the side of the segment (fig. 5 a). The 

 prosternal chin-piece is more distinctly emarginate. 



88. Agrilus speciosus. (Tab. VI. figg. 6, 6 a.) 



Subtus nigro-aeneus ; capite ameo, crebre fortiter punctato ; tborace aeneo, nitido, tenuiter hand crebre punctato, 

 transversim tenuiter striolato ; elytris rufo-cupreis, tenuiter asperatis, ante apicem angustatis, maculis sex 

 griseo-flavis ornatis. 



Long. 2± lin. 



Hab. Mexico, Acapulco in Guerrero (Hoge). 



The head is nearly flat in front, closely and finely punctured, not sulcate. The 

 thorax is convex, scarcely perceptibly impressed in front ; the posterior ridge is fine and 

 distinct, nearly straight (fig. 6 a). The elytra have the subcosta fairly well marked ; 

 each elytron has three yellowish spots — one at the base, the second about the middle, 

 and the third a little nearer the apex than to the second spot ; the apex of each elytron 

 is obliquely rounded off exteriorly, and finely serrate. The prosternal chin-piece is 

 rounded anteriorly. The prosternum is finely and closely punctured, and slightly 

 pubescent ; the intercoxal process is not very distinctly margined laterally. The meta- 

 thoracic epi sterna are finely punctured. The abdomen is moderately finely and not 

 very closely punctured. The basal joint of the posterior tarsi is rather short. 



89. Agrilus asperulus. (Tab. VI. figg. 7, 7 a, b.) 



Parum convexus, fere niger ; capite nigro-aeneo, nitido, crebre evidenter punctato, medio sulcato ; thorace 



obscure aeneo, nitido, creberrime granuloso ; elytris viridi-aureis, sutura late seneo-nigra. 

 Long. 2| lin. 



Hab. Mexico, Ciudad in Durango 8100 feet (Forrer). 



The head is gently convex in front ; the channel is well marked, and extends from 

 the clypeus to the vertex (fig. 7 b). The thorax is convex in front, with a slight 

 elongate impression in the middle of the base ; the posterior ridge is fine but distinct, 

 nearly straight (fig. 7 a). The elytra are densely and finely rugose, with scarcely any 

 trace of the subcosta. The prosternal chin-piece is arcuate. The prosternum is finely 

 punctured. The abdomen is finely and not very closely punctured. 



90. Agrilus mutabilis. 



JEneus, parum nitidus, elytris rufo-cupreis, ad suturam purpureis ; capite confertim rugoso-punctato ; tborace 

 crebre punctato et transversim undulato-ruguloso ; elytris planiusculis, confertim sat fortiter asperatis, ad 

 apicem denticulatis ; prosterno crebre punctato ; abdomine striolato. 



Var. thorace elytrisque concoloribus. 



Long. 3 lin. 



Hab. Mexico, Oaxaca {Hbge). 



The front of the head is rather more finely punctured in the male than in the female, 

 and more pubescent ; there is a slight impressed line in the middle. Some of the 



