COLEOPTERA 627 



joint of the antennal club is less narrow and less parallel-sided than in the probable 

 males of that species. Its duller and (in parts) more strongly sculptured elytra will also 

 readily distinguish it. No doubt the pubescence is more or less abraded in the type. 



Hab. Hawaiian Islands, perhaps Hawaii. The specimen was without any 

 number. 



(31) Jllirosh'nuts luguln^is, sp. nov. 



Niger, nitidus, pronoto pallide pubescente, oculis mediocribus, late distantibus. 

 Antennarum clava ^ magna, articulo primo et secundo late dilatatis, apicibus fortiter 

 productis ; antennarum clava % multo minor. Pronotum ubique pubescens, subtilissime 

 punctatum. Elytra nitida, apices versus densissime minute punctata et pubescentia, 

 basi extrema sat dense punctata et pubescente, parte intermedia $ parce aut haud dense, 

 % parce aut parcissime punctata, fere glabra aut minus pubescente. Metasternum '^ 

 antice fortiter carinatum. Long. 2 "5 — 3*2 mm. 



This is a variable species and difficult to characterize. Normally the elytra behind 

 the extreme base are extremely sparsely punctured in the %, but a good deal less 

 sparsely in the ,T. In the former sex the surface is often glabrous with slight longi- 

 tudinal sulci and a few punctures only. In extreme tt the same part is not very 

 remotely punctate and is pubescent, but both punctures and pubescence are less dense 

 than on the apical portion of the elytra. Some males however closely resemble the 

 female in sculpture, and some of the latter more nearly approach males. Exactly the 

 same difficulty occurs with other species of the genus. On account of its variability, 

 difficulty may be encountered in separating M. higubris from forms on other of the 

 islands, but it cannot be confused with species of similar sculpture on Hawaii, because 

 it has smaller eyes than these. 



Hab. Hawaii ; found in the wet belt of the forests at an elevation of 2000 — 3000 ft. 



(32) jllij'osfenius iiiaurus, sp. nov. 



Niger, aut piceus, nonnunquam (immaturus ?) testaceus, oblongus, elytris elon- 

 gatis, lateribus fere parallelis. Antennarum ^ clava maxima, articulo primo ad apicem 

 valde producto, triangulari aut quasi quadrangulari, magnitudine et forma variabili, 

 articulo ultimo, quam solitus, latiore, apice truncate. Oculi minus magni, et latissime 

 distantes. Clava antennalis $ maris multo minor. Pronotum nitidum, subtilissime 

 punctulatum, griseo-pubescens. Elytra nitida, ex majore parte fere glabra, linea pubes- 

 centiae griseae suturali sat distincta, ibique minus subtiliter ruguloso punctata, sutura 

 apicem versus sat fortiter impressa. Long. 3 mm. 



The puncturation of the elytra varies, as well as other features mentioned above, 

 the punctures being sometimes close and rugulose only narrowly along the suture, at 



