IMATIUJ1. 



263 



narrower than the first and second, and shorter than the first, slightly 

 dilated towards their apex ; the fifth to eleventh shorter (the terminal 

 joints being shorter even than the second), broadly incrassated ; in 

 colour, the first to fourth ferrugineous, the fifth to eleventh black. 

 Legs rufo-flavous throughout, the three basal joints of the anterior 

 tarsi being distinctly black. 



/. tomentosum differs from /. rotundatum in its non-coneolorous 

 antennae, the black colour of the three basal joints of the anterior 

 tarsi, and in the form of the punctures on the elytra, which are 

 broader and less apparently deep than in the next species. 



Brazil. 



2. Imatium rotundatum. 



I. subsphicrieum, valde jiavo-pubescens, Jlavum vel fusco-Jlavum ; 

 capite abbreviate, depresso, ad basin antennarum obsolete bitu- 

 bereulato ; ihorace valde transverso, depresso ; elytris latis, am- 

 plissimis, punetato-striatis ; anteanis brevibus, incrassatis, art. 

 1-8/ulvis, 9-11 flaws; pedibus jlavis. 



Long. corp. 2| lin., lat. 2 lin. 



Subspherical, thickly flavo-pubescent throughout, and in colour 

 fusco-fiavous. Head very short, much depressed (almost vertical) ; 

 the eyes are small, not projecting laterally ; between the eyes is an 

 obsolete transverse depression; between this transverse depression 

 and the base of the antennas are two oblong tubercles (the channel 

 between them forming, together with the transverse fovea, a de- 

 pression in the form of the letter T) ; the surface of the head is 

 fiavous or fusco-flavous, and less distinctly granulated than in /. to- 

 mentosum. Thorax transverse (much more transverse than in 1. to- 

 mentosum), considerably inclined or sloping towards the head ; the 

 sides are gradually compressed towards tbe apex and marginate, 

 especially towards the anterior angles (which are much depressed) ; 

 a broad and shallow transverse depression extends parallel to the 

 basal line (most apparent when viewed in front). Scutellwn tri- 

 angular, fiavous. Elytra much broader and more robust than the 

 thorax, subspherical, punctate-striate, the punctures being deep and 

 the striae almost obsolete, clothed throughout with a thick pilose 

 fiavous pubescence. Antennae, short, robust, and incrassated ; the first 

 joint is long, and broadly dilated at the apex ; the second is short 

 and ovate ; the third as long as the first, and rather longer than the 

 fourth and fifth ; the following joints are gradually dilated, especially 

 the sixth to the eighth (but not so broadly as in I. tomentosum) ; in 

 colour, first to eighth fulvous, ninth to eleventh fiavous, Legs entirely 

 fiavous. 



