504 COLEOPTERA 



Rostrum almost nude and shining, punctulate. 



Prothorax considerably narrowed anteriorly, somewhat flattened 

 above, but convex behind ; it is coarsely sculptured with punctures and 

 short, rugose elevations, and, besides the squamosity observable on the 

 rest of the body, bears some erect scales on each side of the middle of 

 its apex. The elytra have a large rounded lobe at each side of the 

 scutellum, the shoulders are prominent, and between these they are 

 incurved ; each elytron has three, not much elevated costse, the intervals 

 between which bear two rows of coarse and small punctures, and short 

 rugose elevations ; the apices are pointed. 



Length, 5 lines (rost. incl.). 



The above description has been taken from two specimens which I 

 cut out of a Rewa-rewa at Tairua. In this species the scrobes are 

 oblique, extending from the middle to the base of the rostrum. 



Mitrastethus. 



Redtenbacher ; Voy. Novara. 



Corpus elongatum, cylindricum, squamosum, alatum. Caput par- 

 vum, rotundatum, convexum, rostro thorace dimidio breviore, antice 

 cylindrico, basi parum dilatato et depresso. Antenna in medio rostro 

 insertae ; scapo oculi marginem anticum attingente ; funiculo septem- 

 articulato, articulis duobus primis elongatis ; clava oblongo-ovata, acu- 

 minata, annulata. Mandibula minutse, vix prominentes. Oculi latera- 

 les, rotundati, convexi. Mentum pedunculo elongate instructum. 

 Thorax conicus, antice constrictus, margine antico in medio volumodo 

 rotundato-producto, lobis lateralibus nullis, margine postico profunde 

 bi-emarginato. Scutello minuto, punctiformi. Elytra thorace parum 

 latiora, latitudine duplo longiora, subparallela, leviter convexa, apice 

 singulatim rotundata, anum obtegentia. Prosternum profundissime 

 canaliculatum, canali alte marginato, mesosterno mitraeformi terminate. 

 Metasternum latum, planum. Abdomen segmentis duobus primis longi- 

 tudine subaequalibus, primo margine apicali emarginato, secundo, tertio, 

 quartoque simul sumtis vix breviore. Pedes elongati, postici parum 

 longiores ; coxis valde distantibus ; femoribus in medio modice incras- 

 satis, edentatis, tibiis compressis, apice unco valido armatis, tarsis articulo 

 tertio valde dilatato, bilobo, ultimo unguiculis duobus liberis, simplicibus. 



897. M. bituberculatUS, Fabr.; White, Voy. Er. Terr., Ins. 

 Pitchy-brown; antenna and legs reddish; beak not impressed at the base ; 

 thorax deeply punctured, slightly constricted within the tip, slightly 

 rounded on the sides ; elytra towards the tip somewhat attenuated, 

 punctato-striated, the spaces between flattish, the points over the body 

 filled with greyish scales. 



New Zealand, in the wood of the Kauri (Dammara australis), vary- 

 ing much in size. 



From an oversight Fabricius has described the thorax as two-tuber- 

 culated, the elytra, where they begin to be narrowed, project a little, and 

 the name would seem to be derived from this circumstance. In some 



