COLEOPTERA 147 



(3) Pentarthrum blackbiirni Sharp. 



Pentarthrum blackbtirni Sharp, /. c. 



Hab. Oahu. Near Honolulu (Blackburn). I did not meet with this species. 



Orothreptes, gen. nov. 



Subfusiformis, haud gracilis, totus pube aurea vestitus. Rostrum elongatum, levius 

 curvatum, lateribus parallelis. Oculi magni convexi. Antennae breves, robustae, fere 

 ad medium rostrum insertae, scapo minus longo, funiculo 5-articulato, articulo primo 

 brevi, caeteris transversis, capitulo elongate. Pronotum latum, antice subconstrictum. 

 Tarsi breves, sat robusti, articulo tertio late bilobato. Coxae omnes sat late separatae, 

 sed posteriores et intermediae multo latius quam anteriores. Metasternum longum. 

 Elytra pronoto evidenter latiora. Scutellum patens. 



Perhaps most nearly allied to Sericotrogus Woll., but differing greatly in its much 

 less narrow and elongate form, the less strongly curved rostrum, the pterygia being not 

 in the least outstanding, the larger but less prominent eyes, short wide prothorax, 

 shorter metasternum, and in many other respects. The lobes of the tarsi are very 

 largely developed, the apical joint is somewhat stout. 



(i) Orothreptes callithrix, sp. nov. 



Rufotestaceus, totus aureo-pubescens. Rostrum opacum, subtilissime punctatum, 

 lateribus parallelis. Pronotum sat latum, antice subconstrictum, densissime grossius 

 punctatum, lateribus rotundatis. Elytra profunde striata, striis haud distincte punctatis, 

 interstitiis confuse crebreque rugoso-punctatis. Long, (rostr. incl.) circ. 4 '2 5 mm. 

 (Plate VIII. fig. 2 ; 2a, antenna). 



Hab. Hawaii. A single example taken in the Kona district (3000 ft.) 



Deinocossonus, gen. nov. 



Forma subcylindrico-fusiformi, totus pube demissa vestitus. Rostrum latum, breve, 

 a capite parum distincte divisum, medium postice longitudinaliter sulcatum, ad inser- 

 tionem antennarum subangustatum, ibique utrinque tuberculo munitum. Oculi per- 

 magni, convexiusculi, a pronoto distantes. Antennae ad apices oculorum insertae, ab 

 apice rostri distantes, funiculo 7-articulato, articulo primo caeteris, qui omnes sunt bre- 

 vissimi, longiore, capitulo sat robusto. Pronotum subelongatum, antice angustatum. 



F. H. II. 20 



