Entomological Society. 425 



gulis posticis vix rectangulatis ; elytris capite cum thorace duplo 

 longioribus, strlato-punctatis et subgranulatis ; corpora infra rufo, 

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



PhjENOgnathcs, Hope, n. g. 

 Pachypo affine pedibus posticis longissi7nis. Caput in medio cornu- 

 ttim, lubmm porrectum, conicum, mandibulce exsert(£, antenn(E9-ar- 

 ticulatcE. Maxilla lobis minutissimis. Prothorax antice subre- 

 tusus. Elytra conica postice valde attenuata. 

 Phaenognatha Erichsoni, Hope. Custanea, capite iinicorni, cornu 

 nigro, postice Jlavo tomentoso ; thorace punctato, margine omni 

 ciliato ; elytris ad basin cast aneis,' postice nigris et striato-punc- 

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

 loribus et auricumatis . 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 favo-ciliatis. 

 Elytris postice rotundatis ultra medium incrassatis, striato-punc- 

 tatis, striis parum impressis, disco sparsim punctulato ; podice 

 trigono et decUvo ; corpore infrii concolori pectore pedibus flavis 

 capillis longis obsitis, femoribus segmentisque abdominis rtibro- 

 piceis nitidis. Long. lin. 11, lat. lin. 5i. 

 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 atFord 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-tcinentoso. Long. hn. 3, lat. lin. \\. 

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

 cideE ; 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 Australasise, Hojie. Flava, antennis palpisque luteis, 

 capite viridi ; maxillis concoloribus, apicihus nigricantibus. Tho- 

 race (Eneo-viridi, antice posficeque const ricto, linedque longitudi- 

 nali fortiter impresso ; elytris favo-marginatis macula anchorali 

 magna notatd ; corpore infra viridi ternis segmentis antepenultimis 

 piceis, apicali autem Jlavo, pedibusque concoloribus. Long. lin. 7\, 

 lat. lin. 2|, 

 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 loscelis, Hope. Atro-cenea, capite ceneo fronte albido, 

 Ann. ^ May. N. Hist. Vol. i.x. 2 F 



