250 Mr. D. Sharp's Contrihutwns to the 



stouter than the others, nearly as \ox\^ as 2, 3 and 4 

 together; 3rd scarcely so long as 2nd, 10th quite as long 

 as broad. Labniin with a small notch, in the middle on 

 either side of Avhicli is a prominent ?pine; the inner side 

 of this spine is dilated. iNIandibles pale red, elongate, 

 irregularly toothed, the left one with a broad, only Httlo 

 ])rominent tooth in the middle, and between this and the 

 base with a very minute tooth, and above the middle 

 tooth with a small sharp tooth ; the right one with three 

 small approximate teeth in the middle, the upper one of 

 which is very obsolete. Head reddish, broad, rather 

 broader than the elytra, the clypeus in front distinctly 

 impressed on each side ; the hind angles much rounded, 

 the surface extremely densely, finely and indistinctly 

 punctured. Thorax rather longer than broad, its greatest 

 breadth in front of the middle, greatly narrowed to the 

 front, and a good deal narrowed towards the l)ase ; ex- 

 tremely finely carinate along the middle, the carina being 

 only distinctly visible near the base, in consequence of the 

 surface there being a little flattened or depressed on either 

 side ; coloiu' and punctuati<m similar to the head. Elvtra 

 rather longer than the thorax, fuscous with the apex 

 yelloAv, their punctuation extremely dense and fine. Hind 

 body broad, but a good deal contracted at the base, reddish 

 but infuscate towards the extremity, very densely, finely 

 and indistinctly punctured. Legs yellow; tarsi rather 

 stout but elongate, the hind ones being quite half as long 

 as the tibia}. 



In the male, segments 3 — fi of the hind bodv are on 

 the underside iinpressed along the middle, the hintl margin 

 of the 6tli segment is broadly emarginate ; the hind 

 margin of the 7th segment is also broadly emarginate, and 

 in the middle there is also a small notch. 



Tapajos ; two males and one female. 



3. Scopccus pauper, n. sp. Angustulus, stibparallelus, 

 rufescens, subtilissime vix persjiicue ])unctulatus, snb- 

 opacus ; vertice emarginato, medio lb\ eolato ; pedibus 

 brevibus, validis. Long. corp. 1 lin. 



Of narrow (()iin, and almost imicolorous palc'-rcddish 

 coloui-, .Vntcnnjc short; .3rd joint small, a good deal 

 smaller than ihe small 2nd joint, joints 3 —(1 diflering little 

 from one another; 7 — 10 each very slightly broader than 

 it;S ])redecessor, and shorter than broad; 1 1th joint short. 

 ]Iead rather long and narrow, slightly broader than the 



