83 



clothe the under-surface and legs (except at apex of femora 

 and base of tibiae), form three lines on prothorax (the lateral 

 ones sometimes indistinct), and cause the elytra to appear 

 speckled. In picus the prothoracic punctures, although 

 covered by the scales, are very decidedly traceable; in gratus, 

 on the contrary, they are entirely concealed by the scales, 

 which there are larger and looser. The clothing of gratus is 

 peculiarly soft and pretty, whilst that of picus is strongly 

 contrasted black and white. 



Cedilaus, n. g. 



Head large, partially concealed. Eyes small, convex, 

 ovate, widely separated, coarsely faceted. Rostrum rather 

 short, wide, sides incurved to middle, very feebly curved. 

 Scape inserted nearer apex than base of rostrum, the length 

 of funicle; two basal joints of funicle elongate; club ovate, 

 subcontinuous with funicle. Prothorax convex, transverse, 

 base truncate, sides rounded, apex feebly produced, constric- 

 tion feeble; ocular lobes obtuse. Scutellum not traceable. 

 Elytra briefly ovate, sides and apex rounded. Pectoral canal 

 deep and wide, terminated between four anterior coxae. 

 Mesosternal receptacle strongly and suddenly raised in front, 

 emargination strongly transverse, cavernous. Metasternum 

 much shorter than the following segment ; episterna not trace- 

 able posteriorly, but the triangular inner projection very 

 largely developed. Abdomen large, sutures straight and dis- 

 tinct; first segment as long as the three following combined, 

 intercoxal process very wide and truncate, third and fourth 

 combined slightly longer than second or fifth. Legs moder- 

 ately long ; posterior coxae touching elytra ; femora deeply 

 grooved, edentate, almost equal in width throughout, posterior 

 not extending to apex of abdomen ; tibiae compressed, straight 

 beneath, each with a large triangular projection near the base ; 

 tarsi short, third joint wide and deeply bilobed, fourth long 

 and thin. Ovate, convex, squamose, nontuberculate. 



The tibiae are very remarkable, and would appear to 

 denote an approach to Psepholar, whilst the polished sides and 

 strongly-elevated mesosternal receptacle would seem to lead 

 more towards Idotasia. I may, therefore, very likely be wrong 

 in associating the genus with Poropterus, but, at any rate, most 

 of the characters denote affinity with Decilaus. The metaster- 

 nal episterna are also very remarkable, each posteriorly is not 

 traceable, but its anterior inner projection becomes so largely 

 developed that it is almost as long as the basal segment of 

 the abdomen ; it is besides plated with shining yellowish scales, 

 so that its extent is easily seen. 

 d2 



