Entomological Society. 423 



which was especially rich in Hymenoptera, particularly in the family 

 of bees, some of which were very singular. 



Mr. Evans exhibited a drawing of a caterpillar of Zeuzera jEscuU, 

 and part of a young tree which it had destroyed. 



Mr. E. Doubleday brought for distribution amongst the members 

 a large number of North American Coleoptera. He also exhibited 

 portions of his collection of American Lepidoptera, consisting of an 

 entire series of the genus Polyommatus (5 species), a new species of 

 Colias, two species of Terias hitherto confounded together, and a 

 singular specimen of Saturnia Promethea, having the antennae and 

 body of the male, and wings of the form and colour of those of the 

 female. 



Dr. Becker of Wiesbaden exhibited portions of his collection of 

 German Lepidoptera, each species being preserved in a small case 

 with the top and bottom of glass, — a mode much adopted in Ger- 

 many. 



The following memoirs were read : — 



Observations on the Coleoptera of Port Essington, in Australia, 

 with descriptions of the following new species. By the Rev. F. 

 W. Hope, RR.S., &c. 



Lamellicornes. 



Bolboceras Kirbii, Bainbridge ^ . Castaneus, capite antice clypeo 

 emarginato, postice cornu erecto apice acuto ; thorace antice et 

 postice excavate, cornu utrinque erecto valido, supra denticulato, 

 elytris concoloribus ; corpore infra castaneo, thorace pedibusque 

 flavo-hirsutis. Long. lin. 10, lat. lin. 6|. 



Bolboceras neglectus, Hope $ . Affinis Bol. Latreillii, at minor. Cas- 

 taneus, capitis clypeo emarginato, medio lined irregulari elevato, 

 postice cornuto, cornu autem apice fisso hidentato ; thorace an- 

 tice ahrupte truncato, postice convewo varioloso punctis sparsim 

 instructo ; elytris striato-punctatis, corpore subtils flavis capillis 

 instructo. Long. lin. 8^, lat. lin. 5. 



Bolboceras rotundatus, Hope ? . Castaneus, clypeo integro, capite 

 antice excavato, medio lined irregulari elevatd conspicuo, posiice- 

 que bidentato seu tuberculis binis instructo ; thorace convexo 

 glabro punctis aliquot in medio vix conspicuis ; elytris striato- 

 punctatis rotundatis piceo-castaneis,pedibus pallidioribus et pilosis. 

 Long. lin. 3^, lat. lin. 2. 



Bolboceras rubescens, Hope. Rubro-piceus nitidus, clypeo integro, 

 capite lined irregulari instructo ; thorace convexo glabro, fossuld 

 rotundatd utrinque fortiter impressd ; elytris castaneis, pedibus 

 concoloribus. Long. lin. 2J, lat. lin. l^. 



Oathophagus 4-dentatus, Hope(^. Affinis Onth. Capellse, Kirb., 

 at major. Niger, capite fere trigono, clypeo emarginato, thorace 

 antice excavato, punctato quadridentato, dentibus mediis majori- 

 hus prominentibus, lateralibus minoribus seu tuberculatis ; elytris 

 striatis, spatio inter strias subtilissime punctulato, pedibus anten- 

 nisque fiavo-ciliatis. Long. lin. 6^, lat. lin. 4. 

 $ . Foemina differt thorace integro haud dentato, angulis anticis tho- 

 racis prominentibus et acutis. 



