AGEILUS. 113 



The eyes are somewhat prominent laterally, and slightly angular posteriorly. The 

 thorax is convex in front, impressed at the base, the sides rather broadly impressed 

 posteriorly ; the posterior ridge is only indicated by a slight raised line which is much 

 obscured by the punctuation. The elytra are rather rugose at the base, but smoother 

 at the apex ; the subcosta is only indicated at the side of the slightly elongate pubescent 

 spots; the denticulation at the apex is very regular. The prosternal chin-piece is 

 not arched forward, but is rectilinear in front. The prosternum is rugose, slightly 

 curved down posteriorly, truncate at the apex, with a central narrow process at a lower 

 level. The episterna are rugose, not pubescent. The abdomen is finely punctured ; 

 the basal segment gently concave at the base and finely striated (fig. 24 a) ; the lateral 

 carina is rectilinear posteriorly. The posterior femora are slightly incrassate ; the basal 

 joint of the posterior tarsi rather short. 



121. Agrilus laticeps. (Tab. VI. figg. 25, 25 a, b.) 



Elongatus, nitidus, postice attenuatus, aeneo-cyaneus ; capitis vertice thoraceque nigrescentibus ; elytris obscure 

 purpureis, costa postice suturam versus subito incurvata ; abdomine segmento basali medio leviter sulcato. 

 Long. 3 lin. 



Hal. Guatemala, Capetillo (Champion). 



The head is short and broad, closely and rather coarsely punctured, longitudinally 

 impressed in front (with a fine median line), and has a little silvery pubescence above the 

 clypeus ; the basal joints of the antennae are rather long. The thorax is rather 

 parallel at the sides, obliquely narrowed at the base, moderately strongly transversely 

 rugulose and finely punctured (the rugse on the disc having a rough appearance) ; the 

 sides are impressed and the impressions encroach on the disc on each side a little 

 behind the middle ; there is no distinct posterior ridge. The elytra are closely and 

 rather finely rugose, gradually narrowed to the apex ; the suture is distinctly raised 

 behind the middle, but is below the level of the surface at the apex ; the subcosta is 

 very well marked, parallel to the suture for two thirds its length and then suddenly 

 curved in to the suture ; there is some short silvery pubescence at the apex near the 

 suture. The prosternal chin-piece is short, rather strongly emarginate. The prosternum 

 is closely punctured, but has a smooth space in the middle ; the intercoxal process is 

 truncate at the apex. The episterna are rather closely punctured, slightly pubescent 

 on the outer side. The abdomen is finely and not very closely punctured ; the basal 

 segment with a very distinct longitudinal, closely punctured, and slightly pubescent 

 impression, acuminate posteriorly and nearly extending to the apex (fig. 25 a) ; there is 

 a patch of silvery pubescence on each side at the base, and a transverse impression 

 behind the middle (also filled with short silvery pubescence); the lateral carina is 

 deeply sinuate behind the middle (fig. 25 b) ; there is a pubescent spot at the side of 

 the second segment. The basal joint of the posterior tarsi is very long. 



biol. cente.-amek., Coleopt, Vol. III. Pt. 1, July 1889. Q 



r>. 



11 



