252 MESSRS. C. J. GAHAN AND G. J. ARROW ON THE [NoV. 3, 



expanding just before the apex, and clearly defined by the massing 

 together and brighter coloration of the scales bordering it 

 internally. The head and thorax are rather broader than in 

 H. injucundihs Schon., the rostrum shorter and the thorax as 

 wide in front as behind. 



A dozen specimens were collected. 



OcELosTERNUS STURio, sp. n. (Plate XXYIII. fig. 4.) 

 Crassus, niger, argillaceo-squamulosus, suhtus squamulis pallidi- 

 oribus vestitios, prothoracis maculis magnis inferiorihus late- 

 ralibus maculaque parva dorsali albo-Jiavis, hac sagiitiformi 

 ad marginis postici medium posita ; elytris nodosis, squcmnulis 

 argillaceis aggregatis, squamas onagnas quasi-piscinas for- 

 mantihus, videlicet suturalihus 5, quarum 2 interncdihus acute 

 tuberculatis, lateralibusque 4, setis minutissimis albidis ubique 

 rare sparsutis squamulisque albidis ad margines lateralia 

 irregulariter aggregatis ; capite postice profunde sulcata, 

 utrinque transverse carinato ; prothorace medio acute longi- 

 tudinaliter carinato, antice valde constricto, postice lateribus 

 valde arcuatis et crenatis, angulis obsoletis ; femoribus omnibus 

 medio fortiter dentatis. 

 Long, {rostro excl.) 10 mm. 



This curious Weevil is remarkable for the manner in which the 

 earthy- coloured scales of the elytra are aggregated into large areas 

 resembHng the scales of a Ganoid fish, and separated by a very 

 fine network of black scales. These areas are elevated in the 

 centre, the four median ones adjoining the suture very strongly 

 and acutely. The posterior part of the head is furrowed and 

 transversely elevated on each side of the furrow, and the centre 

 of the pronotum is longitudinally elevated. The only other 

 species with which this can be compared is G. exornatus Boh., 

 which is smaller, narrower, and more brightly coloured. In this 

 species also the scales upon the elytra tend to form isolated 

 patches separated by darker intervals. In C. sturio, however, 

 the patches have spread over the entire surface and are divided 

 only by extremely narrow lines. 



The unique type-specimen is probably a male. 



Belopgeus NIGER, sp. n. (Plate XXYIII. fig. 5.) 



Ellipticus, niger, nitidus, elytris velutinis, rostro tenue, ad pro- 

 thoracis et elytrorum longitudiiiem cequali ; prothorace nitido, 

 haud dense punctato, absque sidcis, antice constricto, lateribus 

 ah ante medium fere parallellis ; elytris opacis, velutinis, 

 profunde striatis, interstitiis seriatim punctatis, singulo postice 

 arcuate truncato ; pygidio velutino et fulvo-setoso, grosse 

 punctato ; corpore suhtus polito, sterni lateribus abdominisque 

 segmento ultimo punctatis. 



Long, [rostro excl.) 10 mm. 



Hah. Brazil : Chapada, Pard. 



In all structural features this insect is similar to the only 



