LEIOPLEURA. 163 



thorax is almost smooth ; under the microscope the sides are seen to be very delicately 

 reticulate-striolate ; punctured, the punctures very small at the front part of the disc, 

 larger posteriorly, not very close together, but on each side of the base a few of them 

 are transversely confluent. The elytra are punctured, the punctures small and very 

 distinct and some of them ranging themselves in lines. 



22. Leiopleura placida. 



Oralis, convexa, nitida ; capite virescente ; thorace nigro-cyaneo, subtiliter parce punctato ; elytris cyaneis, sat 



fortiter punctatis. 

 Long. 1| lin. 



Hah. Panama, Volcan de Chiriqui 2500 feet (Champion). 



This species is shorter and more ovate than L. polita. The front of the head and 

 sides of the thorax are slightly tinted with bluish-green ; the disc of the thorax is 

 blackish-blue, and the elytra are steel-blue. The head has scarcely any longitudinal 

 impression ; it is reticulate-striolate, but the striolation is somewhat interrupted and 

 has a tendency to run in a transverse direction ; there are some distinct punctures 

 placed not very close together. The thorax is evenly convex, finely margined at the 

 sides, finely reticulate-striolate, with a slight tendency to rugosity ; punctured, the 

 punctures distinct and not very close together. The elytra are convex, scarcely broader 

 behind the middle than at the shoulders, arcuately narrowed to the apex; punctured, 

 the punctures moderately strong at the base, delicate at the apex, irregular and of 

 unequal size. The intermediate tibiae are nearly straight, a little wider near the base 

 than at the apex. 



23. Leiopleura jubilans. 



Oblongo-ovalis, parum convexa, supra rufo-cuprea, nitida ; capite antice obscure seruginoso, longitudinaliter 



sulcato ; tborace parce punctato ; elytris punctulatis. 

 Long. 1| lin. 



Hal. British Honduras, Belize (Blancaneaux). 



The head is rather deeply longitudinally sulcate, very delicately reticulate-striolate, 

 and with a few punctures. The thorax is evenly convex, very delicately reticulate- 

 striolate ; punctured, the punctures very distinct, not very close together. The 

 scutellum is rather broad, triangular. The elytra are not very convex, as wide at the 

 middle as at the base, gently sinuate below the shoulders, arcuately attenuate at the 

 apex, lightly impressed at the side below the shoulder and behind the middle ; the 

 sutural area is also very lightly impressed at the middle, and there is a shallow impres- 

 sion near the suture not far from the apex ; the punctuation is distinct, very delicate 

 at the apex, irregular, the punctures not very far apart. 



This species bears a great resemblance to Lius dissimilis, but it has the head very 

 much smaller, and the elytra a little shorter and less acuminate. 



Y2 



