COLEOPTERA 589 



(5) Xyletobiiis dolljiisi, sp. nov. 



Fusco-niger, opacus, parce tomento fusco subtilissime vestitus, antennis plerumque 

 nigricantibus, articulo secundo rufescente. A', grimshaivi evidenter affinis, pronoto 

 supra parum convexo, lato, medio minus fortiter producto, stria elytrorum secunda 

 tertiaque ad apices confluentibus, striis usque ad apices subtiliter punctatis. Statura 

 majore, vestitu, colore, multisque aliis modis subtilioribus distinguendus. Long. 

 375 mm. 



Tlie very uniformly dark appearance, and large size gives the above species a very 

 different facies from that of X. grimshazvi, to which it is closely allied. It is much 

 more bulky than the finely striate and elongate examples of that species from Kauai, 

 and has a finer striation and flatter, wider interstices than the typical Oahuan form. 

 The pronotum, seen in profile, is a little less straight above in outline and the clothing 

 of the elytra has not the same tendency to form pale lines on the interstices. Some 

 examples of A', dol/fiisi are a good deal more elongate than others and seem to me to 

 somewhat connect A', viarmoratiis, a rather isolated species with X. grinisJiazvi. 



Hab. Hawaii, Kilauea ; apparently rare. 



(6) Xyletobiiis marmoratus Sharp. 



Xylctobnis uiarnioratiis Sharp, Tr. Ent. Soc. London, 1S81, p. 517. 



Colore variabilis, rufus, rufo-fuscus, rufo-niger aut nigricans, elytris fortius quam in 

 plurimis speciebus impressis, striis fortius sinuatis, secunda cum tertia sola confluente. 



I believe I have identified this species correctly from Dr Sharp's description. It 

 varies a good deal in colour, some examples are dark fuscous, becoming distinctly red 

 in parts. Some are not half the size of others, those from Oahu being on the average 

 much less than those from Molokai. The striation (which is extremely distinct right to 

 the apex) is apparently constant and a strong specific character. 



Hab. Oahu, Maui, Molokai, Lanai. — Not taken anywhere in large numbers. 



(7) Xyletobiiis nieyrickii, sp. nov. 



Statura majore, niger, flavescenti aut cinereo tomento conspicue vestitus, tibiis 

 tarsisque saepius nigricantibus aut obscure rufis. Caput dense tomentosus, oculis 

 mediocriter magnis, latissime separatis, antennis maris sat fortiter, feminae mediocriter, 

 elongatis, articulo septimo et sequentibus maris valde, feminae conspicue elongatis. 

 Pronotum subaequaliter tomentosum, plagis nonnullis quasi nudis notatum. Elytra 



F. H. HI. 76 



