South- American Coleoptera. 293 



greater part of the elytron, but leaving a triangular spot at 

 the scutellum united to a spot under the shoulder, a spot on 

 the margin about the middle, a large spot on the suture be- 

 hind the middle, and a semicircular patch on the margin 

 at the apex, nearly black ; at the apex are two acute spines. 

 The head is clothed with deep-yellow silky pubescence, 

 with a smooth lanceolate ridge between the eyes ; the an- 

 tennal tubercles are very depressed. Antenna? reaching 

 a little beyond the apex of the elytra ; the basal joint very 

 strongly but not thickly punctured ; the third joint has a few 

 smaller punctures, the basal joints have some long pale hairs ; 

 the grooving of the joints is very slight, and commences at 

 the apex of the sixth joint. Thorax with an ovate, smooth, 

 raised spot in middle, two round ones in front of this, and 

 three irregular smooth places on each side; the intervals 

 clothed with deep-yellow silky pubescence, in which are 

 scattered large deep punctures. Outer angle of the intermediate 

 tibiae slightly dentiform. 

 Hab. Gualaquisa. 



Criodion plagiatum, n. sp. 



Nigrum, nitidum ; capite thoraceque rugosis ; elytris piceo-nigris, 

 subtilissime punctulatis, plagis quatuor sordide flavis, angulo 

 suturali spina minuta. 



Long. 18 lin. 



Head very strongly, closely, and rugosely punctured ; 

 antennal tubercles well developed, divided by a deeply im- 

 pressed line, their internal angle elevated and acute. Thorax 

 one sixth broader than long, subcylindrical, constricted at the 

 base, very strongly and closely rugose. Scutellum clothed 

 with grey pile. Elytra not quite so shining as in the pre- 

 ceding species, very delicately punctured, the sutural angle 

 only with a very small spine ; each elytron has an irregular- 

 shaped, oblique, yellow patch before the middle, touching the 

 margin but not the suture, and a second elongate parallel spot 

 or stripe near the margin, reaching from a little behind the 

 middle to the apex. The antennae are considerably longer 

 than the whole insect ; the basal joint is closely and strongly 

 punctured ; the third and fourth joints are very finely, closely, 

 but distinctly punctured, with a few large punctures here and 

 there. The outer apical angle of the intermediate tibiae is 

 obtuse. 



Hab. Gualaquisa. 



Allied to C. dorsale, Thorns., but with longer antennae, 

 more cylindrical thorax, more pointed antennal tubercles, &c. 



