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



so compactly as in that species. The species was referred by Mr. 

 Fascoe to the genus jEgomorphus of Dejean, which, however, had 

 not at that time been characterized, and was a loose assemblage 

 of species belonging to four or five different genera. 



8. Oreodera sericata, n. sp. 



O. valde depressa, fulvo-brunnea, tomento tenuissimo holosericeo 

 griseo subtus densiore vestita : elytris plaga magna laterali pone 

 humeros albo-grisea, prope basin punctatis, dimidio apicali lsevis- 

 simo. Long. 5| lin. 



Head brown : eyes distant on the vertex : antennse piceous. 

 Thorax with the lateral tubercles obtuse, the thi*ee dorsal ones 

 very slightly elevated and clothed with pile. Elytra obliquely 

 truncated at the apex, sutural angles rounded off, the external 

 ones obtuse ; base with a number of large simple punctures, 

 which do not reach beyond one-third the length except along 

 the sides, the rest perfectly smooth and silky ; the pile is ex- 

 tremely fine, thin, silky, and changeable. Legs clothed with 

 grey pile. Under-surface densely clothed. The white patches 

 on the elytra reach the suture and occupy nearly one-half the 

 surface. 



Taken at St. Paulo on the Upper Amazons. 



9. Oreodera cretata, n. sp. 



O. depressa, apicem versus attenuata, tomento tenuissimo holosericeo 



fulvo vestita: elytris plaga oblonga laterali apud medium cretaceo- 



alba. Long. 4| lin. 



Head and antennae fulvous : eyes rather distant on the vertex. 

 Thorax with the lateral tubercles obtuse and the three dorsal ones 

 only slightly indicated; punctured on the hind part of the disk 

 as well as along the fore and hind margins. Elytra truncated 

 obliquely at the apex, sutural angles very obtuse, external ones 

 slightly produced and acute ; punctured, partly in lines and 

 sparingly over the basal half. The oblong lateral chalky spot 

 is clear white. Body beneath and legs silky fulvous. 



On the banks of the Cupari (K. Tapajos), on dried branches. 



§ § Disk of thorax with no trace of tubercles. Elytra less distinctly, 

 sometimes scarce perceptibly, truncated at the apex. 



a. Elytra depressed. 



10. Oreodera simplex, n. sp. 



O. elongata, angustata, tomento holosericeo varia sordido olivaceo 

 vestita : elytris fasciis tribus abbreviatis indistinctis pallidioribus. 

 Long. 5 lin. 



Head and antennas dark brown, the base of each antennal 

 joint (from the fourth) ringed with grey. Thorax with the lateral 



