i8o FAUNA HAWAIIENSIS 



(19) Xyleboriis ignobilis, sp. nov. 



Nigricans, thorace nonnunquam obscure testaceo vel piceo, antennis pedibusque 

 testaceis. Pronotum fere ad basim rugulosum, antice setis pallidis vestitum, lateribus 

 rotundatis haudquaquam parallelis. Elytra plus minus obsolete seriatim punctata, 

 setis pallidis brevibus, lineariter dispositis, vestita, postice baud abrupte declivia, parte 

 declivi tuberculis nullis munita, nee impressa. Long. 27 mm. 



This insect bears little resemblance to any other Hawaiian species of the genus, 

 the elytra being simply rounded off behind and not at all abrupt, nor tuberculated, but 

 sculptured as on the dorsal surface. The prothorax becomes gradually less rough 

 from the front margin backwards, but it is more or less asperulous or rugulose to 

 very near the basal margin, near which the rugulosities have a somewhat concentric 

 arrangement. 



Hab. Hawaii. Three examples taken, each in a different locality, two on the 

 windward and one on the lee side of the island (2000 ft.). 



Hypothenemus Westw. 



(i) Hypothenemtis eriiditus Westw. 



Hypothenemus erudihis Westwood, Tr. Ent. Soc. London, i. p. 34 ; Sharp, op. cit. 

 1879, p. 102. 



Hab. Oahu ; Honolulu (Blackburn). 



(2) Hypothenemus viaadicolhs Sharp. 



Hypothenemus maculicollis Sharp, Tr. Ent. Soc. London, 1879, Pt. I. p. loi. 



Hab. Oahu ; mountains near Honolulu (Blackburn). I did not collect this 

 species. 



(3) Hypothenemus griseus Blackb. 



Hypothenemus griseus Blackburn, Tr. Dublin Soc. iii. 1885, p. 194. 



Hab. Oahu ; a single specimen taken on the plains near Honolulu (Blackburn). 



