COLEOPTERA 137 



The elytra have the second interstice rather strongly raised, rather more strongly 

 at the base and at about their middle than between these points ; the third is hardly 

 convex ; the fourth strongly and unevenly raised, forming the humeral angles ; the fifth 

 and sixth are also more or less unevenly raised, the latter in dorsal aspect forming the 

 lateral outline of the elytra behind the shoulders, which owing to the form of this 

 interstice has an angulate appearance, instead of being regularly rounded from the 

 base. 



Hab. Lanai, a single example taken in the mountains. 



( I 7) Acalles tuberculatus, sp. nov. 



Piceus, rufopiceus, vel rufescens, minus brevis, rostro, antennis tarsisque rufescen- 

 tibus, squamis pallidis nigrisque vestitus, squamis erectis elongatis et gracilibus. 

 Pronotum haud latum, plus minusve evidenter longitudinaliter 5-sulcatum, sulco medio 

 tuberculo elongate laevi munito, antice fortius constrictum, squamis ex majore parte 

 nigris vestitum. Elytra squamis nigris pallidisque variegata, striis obscure punctatis, 

 interstitiis 2° et 4° aequaliter, 6° inaequaliter elevato, humeris prominulis. Long. 

 275—3 mm. 



This species is very distinct by the smooth tubercle situated about the centre of 

 the prothorax, and the form of the erect scales, which are longer and more slender than 

 those of other species. The elytra have their humeral angles somewhat acute and 

 prominent, the 2nd and 4th interstices moderately strongly, and evenly raised, the 6th 

 is somewhat strongly raised a short distance behind the shoulders, and forming the 

 outline of the elytra in dorsal aspect, gives it at that point an appearance of being 

 angulated. One example has the elytra nearly entirely clothed with pale scales. Most 

 of them are for the most part or entirely denuded. 



Hab. Hawaii ; Kona (4000 ft.). About 10 examples found under small logs. 



(18) Acalles pallidicollis, sp. nov. 



Minus brevis, niger, rostro piceo, tarsis antennisque rufescentibus. Caput rostrique 

 basis squamis pallidis vestita. Pronotum totum pallide squamosum, elongatum, antice 

 constrictum, obscurius sulcatum. Elytra squamis pallidis nigrisque variegata, basi 

 apiceque ex majore parte nigris, media parte pallide squamosa, obscure nigro fasciata, 

 striis internis obscure grosse punctatis, interstitiis 2° et 4° fortius, primo et tertio his 

 levins elevatis. Femora omnia pallide vestita, nigro-cingulata, squamis erectis pallidis. 

 Long, (rostr. excl.) 3-25 mm. 



Hab. Kauai, above 2000 ft. One example taken. 



