212 0M0T0TIXS. 



Antennce tolerably long-, robust, slightly incrassated towards t la- 

 apex ; the first and second joints fulvous, the third and fourth rufo- 

 fulvous, the fifth and sixth rufo-fuscous, the seventh and eighth 

 (which are much shorter than any of the preceding) pale testaceous, 

 the ninth to eleventh dark fuscous. Legs tolerably long and robust, 

 the posterior tibiae being somewhat incurved towards the apex, of a 

 piceous colour throughout ; the posterior tarsi (and the base of the 

 tibiae) are rufo-fuscous ; the globular inflation above the apical claw 

 dark rufous. 



This species may be separated from its congeners by its greater 

 size, and dark fuliginous colour ; from 0. fuliginosus (to which it is 

 most nearly allied) it may be separated by the prominent tubercles on 

 the thorax as well as its somewhat larger size, and by the irregular 

 patches of white pubescence near the apex of the elytra. 



Bogota. In the collection of Mr. Waterhouse. 



4. Omototus braccatus. 



0. ovatus, latus, robustus, subtiliter pubescens, rugosus, nkjer ; capiti 

 depresso, ad basin bituberculato, granulato; thorace transversa, 

 antice compresso, bitubemdato, rugoso ; elytris ad scutellum un- 

 diqtu tuberculatis, quatuor, etiam aut quinque tuberculis inferio- 

 ribus, svbtiliterpuJ>escentibus,$parsimpunctatis : antennisfulvis ; 

 pedibus piceis, tibns anterioribiis ftdvo vittatis, tibiis 2>ostkis (fe- 

 moribusque extremis) firfvis. 



Long. corp. 3 bin., lat. If lin. 



Ovate, broad, robust, apparently impubescent (except when viewed 

 under a high power), black. Head short, transverse, depressed at 

 right angles to the thorax, and slightly produced in front ; imme- 

 diately above the base of the antennae is an obsolete transverse de- 

 pression, which gives, at its upper margin, prominence to a raised 

 transverse ridge, which does not extend laterally so far as the inner 

 margin of the eyes ; above, and unconnected with these, at the base 

 of the head, are two distinct tubercles : eyes tolerably large, situated 

 at the base of the head, not extending laterally so far as the anterior 

 angles of the thorax ; the surface throughout is coarsely and roughly 

 granulated. Thorax considerably broader than the head, transverse 

 (the breadth being not much greater than the length) ; the anterior 

 angles are distinct, and depressed ; the sides slightly marginate and 

 anteriorly compressed ; in front are two medial and longitudinal 

 tubercles, on the outer sides of which are disposed other irregular 

 carinations ; the whole surface being coarsely and unevenly granu- 

 lated. Scutellum large, triangular, clothed with short flavous pubes- 



