Entomological Society. 



425 



gulis posticis vix rectangulatis ; elytris capite cum thorace duplo 

 longioribus, striato-punctatis et subgranulatis ; corpore infra rufo, 

 pedibus concoloribus. Long. lin. 2^, lat. lin. 1^. 



Pr\enognathus, Hope, n. g. 

 Pachypo affine pedibus posticis longissimis. Caput in medio cornu- 

 tum, labrumporrectum, conicum, mandibula exsertce, antenna 9-ar- 

 ticulata. Maxilla lobis minutissimis . Prothorax antice subre- 

 tusus. Elytra conica postice valde attenuata. 

 Pha?nognatha Ericksoni, Hope. Castanea, capite unicorni, cornu 

 nigro, postice flavo tomentoso ; thorace punctato, margine omni 

 ciliato ; elytris ad basin castaneis, postice nigris et striato-punc- 

 tatis, punctis quasi erosis ; corpore infra piloso, pedibus conco- 

 loribus et auricomatis. Long. lin. 3, lat. lin. 2^. 

 Named in honour of Erichson, who has figured some singular ge- 

 nera allied to Pachypus, as well as to the above genus. 



Sericesthis Gouldii, Hope. Affinis S. abdominali, Hope, at differt 

 Castaneo-pruinosa, capite antice excavato, postice convexo ; tho- 

 race undique lined elevatd circumdato lateribus flavo-ciliatis. 

 Elytris postice rotundatis ultra medium incrassatis, striato-punc- 

 tatis, striis parum impressis, disco sparsim punctulato ; podice 

 trigono et declivo ; corpore infra concolori pectore pedibus fiavis 

 capillis longis obsitis, femoribus segmentisque abdominis rubro- 

 piceis nitidis. Long. lin. 11, lat. lin. 5-|. 

 The above insect is one of the largest species of my acquaintance ; 

 more than forty species have fallen under my notice ; about thirty-five 

 are in my collection. They would afford ample materials for a mono- 

 graph. In bloom and colouring they resemble Serica, and to that 

 genus they are certainly allied. Two other species were received 

 from Port Essington with the above. 



Liparetra nigricollis, Hope. Atra, capite antice excavato, thorace 

 convexo, nigro, elytris striato-punctatis piceis, pedibus concoloribus, 

 pectore flavo-tomentoso. Long. lin. 3, lat. lin. lj. 

 The present insect belongs to a genus of the family of the Seri- 

 cida ; it is rich in species, as my cabinet contains nearly twenty. 

 There are some few other Lamellicornes in Mr. Gould's collection, 

 from Port Essington, but they are in too imperfect a state to de- 

 scribe. 



Geodephaga. 



Megacephala Australasian, Hope. Flava, antennis palpisque luteis, 

 capite viridi ; maxillis concoloribus, apicibus nigricantibus . Tho- 

 race aneo-viridi, antice posticeque constricto, linedque longitudi- 

 nali fortiter impresso ; elytris flavo-marginatis macula anchorali 

 magnd notatd ; corpore infra viridi ternis segmentis antepenultimis 

 piceis, apicali autem flavo, pedibusque concoloribus. Long. lin. 7^, 

 lat. lin. 2J, 



This is the first instance, T believe, of a Megacephala being de- 

 scribed as inhabiting New Holland : apparently it varies consider- 

 ably in magnitude. 



Cicindela Ioscelis, Hope. Atro-anea, capite aneo fronte albido, 

 Ann. <Sf May. N. Hist. Vol. ix. 2 F 



