AGEILUS. 103 



96. Agrilus aureus. 



Agrilus aureus, Chevr. Silberm. Rev. Ent. v. p. 98 \ 



Sab. Mexico, Tuspan 1 , Puebla, Guanajuato (Salle), Tupataro in Guanajuato 

 (Edge). 



97. Agrilus biemarginatus. (Tab. VI. figg. 8, 8 a, b.) 



Elongatus, angustus, subparallelus, nitidus, supra obscure cyaneus,. subtus cupreus ; capite antice viridi, medio 

 leviter impresso ; thorace convexo, tenuiter striolato, medio sulcato ; elytris tenuiter rugosis, maculis sex 

 argenteis ornatis, singulis ad apicem sat profunde escisis. 



Long. 2| lin. 



Hob. Guatemala, near the city (Champion). 



The head is rather closely punctured and slightly rugulose, with a very slight median 

 impression. The thorax is rather long, very convex in front, impressed at the base ; 

 the median channel is narrow, more strongly marked in front than at the base ; the 

 striation is very fine, generally transverse, but longitudinal at the sides. The elytra 

 are a little narrowed below the shoulders, as broad behind the middle as at the 

 shoulders ; the apex is obtuse, each elytron having a semicircular emargination (fig. 8 a) ; 

 the subcosta is only distinguishable before the middle ; the colour is obscure steel-blue, 

 with the basal impression, a patch at the side, before the middle, and a spot near the 

 suture at a little distance from the apex, seneous; each elytron has a small silvery 

 spot at one quarter from the base, another about the middle, and an oblique one not 

 far from the apex. The prosternal chin-piece is arcuate. The prosternum is finely 

 punctured, slightly pubescent ; the intercoxal process is rather flat, rounded at the apex. 

 The episterna are pubescent on the outer side, shining and sparsely punctured on the 

 inner side. The abdomen is finely punctured, with a pubescent spot at the side of the 

 second segment ; the lateral carina is slightly sinuous at the middle, with a silvery spot 

 above (fig. 8 b). 



98. Agrilus ratus. (Tab. VI. fig. 9.) 



Niger, nitidus, capite tboraceque aenescentibus, elytris nigro-ameis, plagis aeneis griseo-pubescentibus ornatis ; 



capite lato, longitudinaliter sulcato, oculis prominulis; thorace basi angustato, medio sulcato; elytris 



rugosis, seneis, fascia post medium apiceque nigris. 

 Long. 2^ lin. 



Eab. Guatemala, Sabo in Vera Paz (Champion). 



This species is noticeable for its broad head and prominent eyes. The top of the 

 head is biconvex, the face is longitudinally sulcate. The thorax is moderately broad, 

 gradually narrower to the base, straight at the sides, vermiculate-rugulose, impressed 

 at the sides and base ; with a somewhat deep median channel. The elytra are rather 

 coarsely rugose, brassy, with a moderately broad fascia behind the middle, and the 

 apex nearly black ; the brassy parts are clothed with grey pubescence. The prosternal 



