280 Mr. D. Sharp's Contributiuns to the 



about the middle, tlicnce much nan*owcd to the front, and 

 a Hi tie towards the base, -with a broad, ill-defined, longi- 

 tudinal impression along each side of the middle ; red, 

 punctuation dense and obscure. Elytra much longer 

 than the thorax, and slightly paler in colour, densely 

 and indistictly ])unctured. Hind body (juite dull, densely 

 punctured, and ^Yitl^ a veiy fine and short, depressed 

 golden pubescence ; 6th segment very elongate. Legs 

 paJe yellow; anterior tibia? fiattened, so that seen on one 

 face they appear very broad ; their tarsi with the basal 

 joint broad, each joint following a little narrower than its 

 predecessor. 



Tapajos ; three individuals. 



Obs. — These three individuals all have the hind margin 

 of the ventral plate of the 6th segment of the hind 

 body distinctly emarginate in the middle, and I suppose 

 them all to be males; the 7th segment is entirely 

 retracted, except in one specimen, in Avhich its hind 

 margin is exposed, and this is emarginate beneath, like 

 the 6th segment. 



9. E cilia ster Batesi, n. sp. Testaceus, dense punc- 

 tatus, opacus, abdominis apice fuscescente ; capite sat 

 elongato, lateribus curvatis, vertice angusto ; thorace minus 

 elongato, profunde bisulcato. Long. corj). I5 lin. 



Antenna} yellow, short, quite as long as the head; 1st 

 joint rather short, very stout ; 2nd almost" orbicular ; 

 3, 4, 5 small, subequal to one another; 6 — 10 each a little 

 broader than its predecessor, 9 and 10 distinctly trans- 

 verse, 11th moderately long. INIandibles very slender, 

 rather short. Labrum very indistinctly toothed. Head 

 rather long, the sides gradually narrowed in a rounded 

 curve to the narrow vertex, which is not pi-olonged into 

 a neck, red, densely and very indistinctly punctured, 

 elevated about the middle. Thorax a good deal naiTOwer 

 than the elytra, and almost as broad as the head ; rather 

 longer than In'oad, almost rounded at the sides ; the 

 greatest breadth in front of the middle, thence much 

 naiTowed towards the front, and distinctly towards the 

 base, dce})ly longitudinally impressed on each side of the 

 middle, yellow, quite dull, punctuation very indistinct. 

 Elytra rather longer than the thorax, closely and indis- 

 tinctly puuctiu-ed. Hind body densely and indistinctly 

 punctured, obscurer in colour towards the extremity. 



