394 Mr. G. Lewis on 



pygidium is convex and sniootli ; the prosternum is without 

 sculpture, and the keel and the anterior lobe are narrowly 

 built up to llie level of the nicsosternura, and the keel is very 

 slightly narrowed in the middle and a little widened out at 

 the base, the anterior lobe, which is not distinct from the 

 keel, is narrower than the base of the prosternum ; the meso- 

 sternum and metasternum are longitudinally convex and 

 consist of one plate, smooth, with an anterior stria, which 

 leaves a wide interstice in front and passes at right angles 

 down the sides and crosses the first segment of the abdomen ; 

 outside this stria is a second, which commences at the inter- 

 mediate coxae and runs parallel to it; these lateral striai arc 

 very strong ; the first segment of the abdomen is punctate on 

 each side at the anterior edge, and in the middle there is a 

 tubercle which is partly abdominal and partly metasternal ; 

 the tibiae arc moderately dilated, feebly angulate on the outer 

 edge, and a few small spines are seen on the anterior pair. 



This curious species is placed in Faratrvpus provisionally ; 

 superficially, owing to the shape of the thorax, it luoks like 

 an Iletccrius. The anterior lobe of the prosternum is nar- 

 rower than the base of the keel. 



Ilah. Bahia. 



Eretmotus carinatus^ sp. n. 



Oi'bioularis, convexus, niger, subnitidus ; fronte stria cariiiata i)unc- 

 tulata : olytris striis marginaHbus carinatis, stria 1" subintegra, 2" 

 dimidiata, 3° abbrcviata ; propygidio vix dense punctate ; pedibus 

 rufis. 



L. 2i mill. 



Orbicular, convex, black, not very shining; head rather 

 densely punctulate, with an extremely fine sculpture between 

 the punctures, which gives an appearance of opacity ; the 

 lateral striae are carinate, not meeting in front, but passing 

 down the sides of the clypeus ; thorax closely but not densely 

 ])unctulate on the disk, punctures at the sides and behind the 

 neck closer and suboccllate (but shallow) under microscopic 

 power; well within the posterior angle is a triangular sulcus, 

 apex pointed outwards ; the anterior angles are very ob- 

 tuse and slightly reflexed, the lateral stria is complete and 

 just before the posterior angle it widens out a little and leaves 

 on the margin a minute longitudinal fissure, angle reddish ; 

 elytra, the first striaevanescent apically, second dimidiate, thir*! 

 less distinct, the first and second are carinate for the basal half, 

 and the marginal stria, with the short subiiumeral one which 

 joins it, is also carinate ; prostcnaun rugosel}" i>unctate. 



