276 Mr. H. W. Bates on the Longicorn Coleoptera 



inequalities, the colour being rusty brown, sprinkled over with 

 darker spots, and varied behind the middle with two or three 

 linear patches of decumbent hairs of an ochreous hue. The legs 

 are rusty brown, with paler rings; the posterior tarsi, with their 

 basal joints, are almost as short relatively as in the genus Lepio- 

 stylus. 



One example ; Ega, Upper Amazons. 



2. Lophojjceum fuliginosum, n. sp. 



L. oblougum, depressum, postice augustatum, fuliginosum, cano 

 nigroque parce variegatum : elytris apice breviter truncatis, lateri- 

 bus obtuse carinatis, carina centrobasali valde elevata et nuda. 

 Long. 3| lin. 



Head dingy brown. Antennse (in 6) greatly elongated and, 

 towards the apex, fine as a hair, sooty brown, the extreme base 

 of each joint (from the third) pallid ; basal joint strongly flexuous 

 beneath. Thorax dingy brown, punctured on the disk, which 

 also is marked with four indistinct black spots. Elytra depressed, 

 sides nearly straight, apex briefly truncated, angles of the trun- 

 cation obtuse ; humeral angles moderately prominent, the lateral 

 carina extending thence towards the apex, obtuse, but the centro- 

 basal ridges are strongly elevated, acute, and naked ; the surface 

 is somewhat evenly punctured throughout, and of a sooty hue, 

 like the rest of the body, but the apical half has a few whitish 

 specks, and on the disk behind the middle on each side is a short 

 oblique black line. Body beneath and legs olive-brown, base of 

 thighs pallid; tibiae and basal joint of tarsi also each with a pale 

 ring. The basal joint of the posterior tarsi is longer than the 

 two following taken together. 



Neighbourhood of Santarem, Lower Amazons. 



3. Lophopoeum circumfiexum, n. sp. 



L. curtulum, depressum, postice valde attenuatum, ferrugineo-fuscum : 

 elytris singulis pone medium linea abbreviata cinerea maculaque 

 lateral! notatis, apice breviter transverse truncatis, carina centro- 

 basali magna acutissima. Long. 3^ lin. 



Head dull brown. Antennse greatly elongated, fine as a hair, 

 most of the joints furnished with a short bristle at the apex 

 beneath ; rust-coloured. Thorax with the lateral tubercles spini- 

 form, disk punctured, rusty brown, the middle with two broad 

 dusky stripes, flanked by spots of the same colour. Elytra tri- 

 gonal, shoulders prominent; lateral carina obtuse, apex briefly 

 truncated, with the angles rounded ; surface thickly punctured 

 towards the base ; centrobasal ridges strongly raised and acute, 

 naked, or nearly so ; ashy or rusty brown, spotted with darker 

 brown, the disk behind the middle having on each side a short, 



