220 Dr. Guy A. K. Marshall on 



and continued as a broad lateral stripe on the thorax and head; 

 the sides of the sternum and venter with green scales, the remaindei- 

 bare and rather shiny; on the lower surface, sides of prothorax, 

 head and legs there is an admixture of metallic green scales. 



Head shiny, almost impunctate, and with a deep roimd frontal 

 fovea; the eye margins not impressed. Rostrum slightly longer 

 than broad, parallel- sided, shiny, and almost impunctate; the 

 interantcnnal space broadly excavated; the dorsum not sulcate, 

 but with a flattened triangular area on the anterior half and convex 

 behind, with a short lateral impression on each side. Antennae 

 ■with the scape exceeding the eye, scarcely punctate and with fine 

 recumbent hairs and setae ; the funicular joints in order of length : 

 2, 1, 3, 4, (5, 6, 7), the apical joints much longer thai broad, clavate. 

 Prothorax a little broader than long, parallel-sided from the base 

 to beyond the middle, thence narrowed and Avith a slight apical 

 constriction; the basal margin slightly rounded, the apex truncate 

 above and feebly sinuate beneath ; the dorsum with a very broad, 

 almost smooth median impression containing a short sulcus, the 

 lateral impression much shallower and uneven; and at the base 

 about half the width of the median one; the two smooth costae 

 with a few very scattered punctures. Sciilellum very small, rounded 

 and clothed with minute recumbent hairs. Elytra rather broadly 

 ovate, sloping shortly from the basal to the humeral angle, the sides 

 slightly sinuate behind the latter and then gently rounded, being 

 broadest a little before the middle; the base jointly and shallowly 

 sinuate, the apices jointly produced and each continued separately 

 as a short obtuse process; the dorsal outline slightly convex, the 

 declivity with a slope of about 45° ; the st riae shallow and regular, 

 containing large shalloAV punctures that are partly hidden by the 

 scaluig ; the suture slightly raised on the declivity, and intervals 3, 

 5, 7 smootlily costate throughout, the costa on 7 uniting with a 

 short apical costa on 9 and jointly continuing on to the apical 

 process; the irregular setae short flattened and recumbent on the 

 disk, but becoming longer and slightly raised on the apical processes. 

 Le(]s rather slender, M'ith short suberect pale setae ; the tibiae finely 

 denticulate internally, the hind pair not mucronate; the second 

 joint of the front tarsi a little longer than broad. 



Length, 19 mm. ; breadth, 7 mm. 



EcuADOE : Quito. 



Described from a single female. 



Another member of the quadrivittatus grou]), but readily 

 distinguished by its more regular rows of punctures and 

 the three sharply defined costae on each elytron. 



