374 Mr. D. Sharp's Contributions to the 



others obsoletely punctured, the 7th and 8th quite black; 

 sco:ments 3 — 5 a little constricted at the base. Legs 

 yellow, rather long-; lobes of tarsi strongly developed. 



In the male, on the underside, the segments of the hind 

 body arc each flattened on the middle, and the 7th bears 

 a very deep and rather In-oad notch. 



Of this elegant species only a single male was found at 

 Tapajos. 



20. Stcnus heres, n. sp. (Sect. II. B, Er.) Niger, sat 

 nitidus, antennis, palpis, pcdibnsque testaceis, his geni- 

 culis, illis clava, infuscatis ; ])rothorace subcylindn'co, 

 dense furtitcrque punctato; elytris dense fortit(!rque punc- 

 tatis, thorace longioribus; abdomiue crebi-e fortiter, apicem 

 versus subtlliter, punctato. Long. corp. I2 lin. 



Antenna? elongate, yellow, with the club nearly black ; 

 3rd joint distinctly longer than 4th. Palpi yellow. Head 

 broad, about as broad as the elytra, rather coarsely punc- 

 tured ; the middle longitudinally a little elevated, and 

 between this and the eyes a small depression on each side. 

 Thorax longer than broad, much narrower than the elytra, 

 subcylindric, but the sides a little curved and slightly con- 

 tracted towards the base ; very densely and coarsely punc- 

 tured, so as to be rugose. Elytra elongate and outstanding, 

 much broader than the thorax ; the shoulders well marked 

 and rectangular, veiy coarsely and closely jinncturcd, but 

 the interstices (juite broad enough to be shining. Hind 

 body cylindric, rather coarsely and closely punctured, very 

 finely and very scantily pubescent ; segments 3 — o much 

 constrictcMl near the base. Legs yellow ; the base of the 

 tiln;« and the aj)ical })ortion of the femora broadly infuscate ; 

 lobes of the tarsi long ; punctuation of metasternum and 

 under face of hind body very coarse ; gena? rather coai-sely 

 but not densely ])unctured. 



J\ga; a single individual, which I believe to be a 

 female. 



21. Stcnus cerritus, n. sp. (Sect, II. B, Er. ) JEneo- 

 nigcr, nili<hihis, parciiis albido-pubescens, fortiter ])i-ofun- 

 dcfjiK* puiictatiis, aulennis pedibusque testaceis, ])al|)is 

 ])alli(li; llavis; abilomiue parcius sat fortiter punctato. 

 Long, Corp. 2! lin. 



Ant<!nnaj yellow, elongate; 3rd joint much longer than 

 4th, club elongate, 10th joint twice as long as broad 



