OMOTOTTJS. 213 



cence. Elytra much broader than the thorax, robust, with deep and 

 irregularly scattered punctures arranged throughout in the form of 

 striae; near the scutellary angles are two broad and prominent 

 tubercles, while behind them, occupying the whole of the surface 

 nearly as far as the apex of the elytra, are distributed five others, 

 irregularly disposed, and in form slightly longitudinal ; the humeral 

 angles at their extremity are distinctly gibbous, so that the breadth 

 across the shoulders is greater than the medial breadth ; the whole 

 surface is uneven and irregular, and clothed throughout (when viewed 

 under a high power) with a short and thick piceous pubescence. An- 

 tennae, : the two basal joints fulvous (the rest, in the example before 

 me, are wanting). Legs piceous ; the posterior tibia3 and the extreme 

 apex of the femora fulvous ; the anterior tibise are banded with fulvo- 

 fuscous. 



Brazil. In the collection of M. Chevrolat. 



5. Omototus nodosus. (TAB. VIII. fig. 8.) 



0. ovatuSj brevis, robustus, griseo et fusco pilo omnino vestitus ; 

 capite brevi, inter oculos transverse tuberculato, ad basin granu- 

 lato ; fhorace transverso, ad medium bituberculato, ad basin valde 

 et transverse depresso, cinereo, et ad laterafulvo-pubescenti ; elytris 

 latis, ad scutellum bituberculatis, punctato-striatis, pilo cinereo, 

 fulvo, et rufo -fusco vestitis ; antennis art. 6-11 incrassatis, 1-8 

 testaceis, 911 pallide fuscis ; pedibus rufo-fuscis, femoribus 

 posticis fuscis. 



Long. corp. 2^ lin., lat. 1^ lin. 



Ovate, short, broad, clothed throughout with different shades of 

 griseous and fuscous pubescence. Head short, depressed anteriorly, 

 not produced ; between the eyes (which are large and somewhat 

 prominent) are two transverse tubercles (varying in direction and in 

 prominence in different examples) of a more distinct rufous colour ; 

 the upper surface is finely granulated. Thorax transverse ; the an- 

 terior angles are depressed and indistinctly subacute ; at the base is 

 a broad and deep transverse depression, while above this depression 

 are two very prominent tubercles ; the surface is clothed throughout 

 with grey, ashy-grey, and (near the sides) fulvous pubescence. Scu- 

 tellum small, triangular. Elytra broad, short, deeply punctate-striate, 

 with two prominent tubercles near the scutellum, clothed through- 

 out (like the thorax) with grey, fulvous, and rufo-fuscous pubescence. 

 Antennae short, gradually incrassated towards the apex (between the 

 sixth and eleventh joints) ; in colour, the first joint to the eighth are 

 testaceous, the ninth to the eleventh pale fuscous. Legs rufo-fuscous, 

 the posterior femora being fuscous. 



